Shock absorption device

A shock absorption device includes an inner cylinder assembly threadably engaged within an outer cylinder assembly. The outer cylinder assembly includes a cap shaped member, at least one protruding member, and at least one first spring member. The inner cylinder assembly includes at least one compressive member, at least one second spring member, and at least one movable piston member. When an external impact force is applied to the cap shaped body member, the first threaded portion of the outer cylinder assembly jumps over the second threaded portion of the inner cylinder assembly as provided by elastic movement of the resilient ring member about the cap shaped body member. The thread jumping results in the first spring member compressing and the protruding member pushing the piston member which pushes and compresses the second spring member and the compressive member providing a reactive force to absorb the external impact force.

FIELD OF THE INVENTION

The present invention relates to a shock absorption device for preventing damage to an object or structure, and to methods of assembly and utilization. The invention is directed particularly but not solely towards a shock absorption device for vehicles to reduce the impact of any collision and damage.

BACKGROUND OF INVENTION

Wikipedia defines that the traffic collision, also known as a motor vehicle collision (MVC), traffic accident, motor vehicle accident, car accident, automobile accident, road traffic collision, road traffic accident, wreck, car crash, or car smash, occurs when a vehicle collides with another vehicle, pedestrian, animal, road debris, or stationary obstruction, such as a tree or utility pole. Traffic collisions may result in injury, death, vehicle damage, or/and property damage (https://en.wikipedia.org/wiki/traffic collision).

As per Annual Global Road Crash Statistics, (http://asirt.org/Initiatives/Informing-Road-Users/Road-Safety-Facts/Road-Crash-Statistics):Nearly 1.3 million people die in road crashes each year, on average 3,287 deaths a day.An additional 20-50 million are injured or disabled.Road traffic crashes rank as the 9th leading cause of death and account for 2.2% of all deaths globally.Road crashes are the leading cause of death among young people ages 15-29, and the second leading cause of death worldwide among young people ages 5-14.Each year nearly 400,000 people under 25 die on the world's roads, on average over 1,000 a day.Unless action is taken, road traffic injuries are predicted to become the fifth leading cause of death by 2030.

Collisions between objects cause damage every day.

These collisions happen when a moving object collides with another moving object like:(a) Vehicles that collides with another vehicle (i.e., car, bus, truck, motorcycle, van, bike, wheelchairs, animals, humans etc.)(b) Aircraft that collides with another aircraft(c) Vessel that collides with another vessel(d) Train that collides with another train(e) Elevator that collides with another elevator

Collisions also happen when a moving object rams into another non-moving object like:(a) Vehicle that rams into a tree, a post, a fence, a house, a building, etc.(b) Aircraft that rams into a field, a building, a house, water, a tree, etc.(c) Vessel that rams into a rock, an iceberg, a light house, etc.(d) Train that rams into a wall, a post, a person, etc.(e) Elevator that rams into the building floor

Any of these objects can collide or be hit by other objects, causing damage which has many, flow on effects such as cost of repair, insurance, health problems including death and time off work. These, flow on effects can be very costly to the individual and country.

In this specification unless the contrary is expressly stated, where a document, act or item of knowledge is referred to or discussed, this reference or discussion is not an admission that the document, act or item of knowledge or any combination thereof was at the priority date, publicly available, known to the public, part of common general knowledge; or known to be relevant to an attempt to solve any problem with which this specification is concerned.

OBJECT OF THE INVENTION

It is an object of the invention to provide a shock absorption device and methods that ameliorates some of the disadvantages and limitations of the known art or at least provide the public with a useful choice.

SUMMARY OF INVENTION

In a first aspect, the invention resides in a shock absorption device1for a surrounding or abutting structure which includes an outer cylinder assembly and an inner cylinder assembly, the outer cylinder assembly includes a cap shaped body member5which includes at least one elongated slit16, with at least one width or gap18, at least one exterior circumferential groove17a, at least one first threaded portion19and having a hollow space therein which includes at least one protruding member22, at least one first spring member24at least one resilient ring member17which is provided to outwardly encircle an exterior curved wall surface20of the cap shaped body member5, the inner cylinder assembly includes a cylindrical shaped body member6which includes at least one second threaded portion37and having a hollow space therein which includes at least one compressive member56, at least one second spring member57, at least one movable piston member46, the inner cylinder assembly is threadably engaged within the outer cylinder assembly whereby the first threaded portion19threadably engages with the second threaded portion37, wherein when an external impact force F1is applied to the cap shaped body member5, the first threaded portion19jumps over the second threaded portion37as provided by elastic movement of the resilient ring member17about the cap shaped body member5which allows the first threaded portion19of the cap shaped body member5to jump over the second threaded portion37of the cylindrical shaped body member6when an external impact force F1is applied, to allow one way movement only, the first spring member24is compressed, the protruding member22pushes the piston member46, the piston member46pushes and compresses the second spring member57and the compressive member56which when relaxed are providing a reactive force F2to cause the absorption of the external impact force F1in such a way that the shock absorption device1is locked in a random position when F2=F1, whereby the outer cylinder assembly and the inner cylinder assembly are not able to disengage with respect to each other.

Preferably, the cap shaped body member5of the outer cylinder assembly has a cylindrical body shape with a base end7, an open end10, a hollow interior space9, an exterior length13, an exterior diameter14, an interior end surface12, an exterior curved side walls8, an exterior curved wall surface20and an interior curved wall surface11having the first threaded portion19located therein.

Preferably, the cylindrical shaped body member6of the inner cylinder assembly has a cylindrical body shape with a base end32, an open end31, an exterior length38, an exterior diameter39, an interior end surface52, an exterior curved side walls33, an interior curved wall surface36and an exterior curved wall surface30having the second threaded portion37there around.

Preferably, the at least one resilient ring member17is located in an at least one exterior circumferential groove17ain the exterior curved wall surface20of cap shaped body member5and wherein the elongated slit16has a longitudinal axis parallel with a longitudinal axis15defining a length of the shock absorption device1and the resilient ring member17has an axis in a transverse direction defining a width, with regard to the longitudinal axis15of the shock absorption device1.

Preferably, the protruding member22and the first spring member24are located adjacent each other, inside the hollow interior space9of the cap shaped body member5, the protruding member22extends through the open end10of the cap shaped body member5and protrude22includes a body with the same length, shorter in length or longer in length with respect to the length of the cap shaped body member5wherein a distal end called a body end face70of the protruding member22is recessed with respect to an entry open end31of the cylindrical shaped body member6.

Preferably, in a first option, the compressive member56is a cylindrical high performance elastomer polyester (HPEP) member.

Alternatively, in a second option, the compressive member56can be replaced with a sealed pressure chamber35.

Alternatively, in a third option, the compressive member56can be replaced with a sealed pressure membrane34.

Preferably, in the first option, the compressive member56is located inside the hollow interior space of the cylindrical shaped body member6, adjacent with the second spring member57, with an inner planar surface50of the piston member46, with the interior curved wall surface36and with an interior end surface52of the cylindrical shaped body member6.

Alternatively, in the second option, the sealed pressure membrane35is located inside the hollow interior space of the cylindrical shaped body member6, adjacent with the second spring member57, with an inner planar surface50of the piston member46, with the interior curved wall surface36and an interior end surface52of the cylindrical shaped body member6.

Alternatively, in the third option, the cylindrical shaped body member6has a hollow enclosed interior space inside, therein the hollow enclosed interior space defines a cylindrical volumetric space or sealed pressure chamber34, located adjacent with the second spring member57, with the inner planar surface50of the piston member46, with the interior curved wall surface36and with the interior end surface52of the cylindrical shaped body member6.

Preferably, in the first option, when using the compressive member56, the cylindrical shaped body member6of the inner cylinder assembly includes at least one interior circumferential groove47a, for the removable location of a spacer ring member44.

Alternatively, in the second option, when using the sealed pressure membrane35or in the third option, when using the sealed pressure chamber34, the cylindrical shaped body member6of the inner cylinder assembly includes at least one interior circumferential groove47aand at least one base valve58.

Preferably, the inner cylinder assembly includes the following components of at least one guide member40, located adjacent with the first spring member24, with at least one clip member47, with at least one spacer ring member44, with at least one piston member46wherein the guide member40is provided with a body with a curved side surfaces41, an outer planar surface42, an inner planar surface43, with at least one aperture45extended from the outer planar surface42to the inner planar surface43defining a thickness, the curved side surfaces41of the guide member40are in use slidably abutting the interior curved wall surface36of the cylindrical shaped body member6, wherein when in use the guide member40allows to at least a portion of the protruding member22there through, wherein the protruding member22moves within a certain distance71before hitting the piston member46and if the external impact force F1is too low, the device will not be activated to cause movement between the outer and inner cylinder assemblies.

Preferably, the at least one spacer ring member44, is located between the guide member40, with the piston member46, which are located adjacent the protruding member22at the open end31of the cylinder shaped member6.

Preferably, the at least one piston member46, is located between the spacer ring member44, and the second spring member57and the second spring member57encircles the compressive member56, wherein the piston member46is provided with a body with a curved side surface54, an outer planar surface49, an inner planar surface50, wherein in the first option, when using the compressive member56, the piston member46comprises a circular solid shaped disc member.

Alternatively, in the second option, when using the sealed pressure membrane35, the piston member46comprises a circular solid shaped disc member and the second spring member is located outside of the sealed pressure membrane35.

Alternatively, in the third option, when using a sealed pressure chamber34, the piston member46comprises a circular shaped disc member with at least one aperture53there through for at least one piston valve55therein, wherein the piston valve55when in use functions is to provide an exit of any excess fluid pressure from within the sealed pressure chamber34.

Preferably the guide member40is located between the at least one clip member47and at least one spacer ring member44.

Preferably, at least one clip member47is movably located in the at least one interior circumferential groove47awhich is provided inside the first end31of the cylindrical shaped body member6, the clip member47is located adjacent with the guide member40, with the first spring member24, with the protruding member22, wherein the clip member47can be a circlip and functions to removably hold all the components, which can include the compressive member56, the second spring member57, the piston member46, the spacer ring member44and the guide member40of the inner cylinder assembly.

Preferably, at least one second spring member57is movably located adjacent with the compressive member56, with the piston member46, wherein the second spring member57functions is to hold or position the piston member46of the inner cylinder assembly, wherein the second spring member57is positioned to abut the base interior end surface52of the cylindrical shaped body member6and an inner planar surface50of the piston member46, wherein the second spring member57together with the compressive member56assist in increasing the reactive force F2.

Preferably, the first spring member24and the second spring member57are rectangular or circular in cross section.

Preferably, in the first option, when using the compressive member56, the piston member46comprises a circular solid shaped disc member with no apertures, sized and shaped to slidably interfit inside the cylindrical shaped body member6, the piston member46having an outer planar surface49, an inner planar surface50and a curved side surface54wherein in use, the curved side surface54of the piston member46slidably abuts the interior curved wall surface36of the cylindrical shaped body member6.

Alternatively, in the second option, when using the sealed pressure membrane35, the piston member46comprises a circular solid shaped disc member with no apertures.

Alternatively, in the third option, when using the sealed pressure chamber34, the piston member46has a circular shaped disc member with at least one aperture53there through for at least one piston valve55therein, wherein the piston valve55functions is to provide an exit of any excess fluid pressure from within the sealed pressure chamber34.

Preferably, in the first option, when using the compressive member56there is no fluid under pressure inside the inner cylinder assembly and the cylindrical shaped body member6of the inner cylinder assembly has no inlet or outlet or base valves.

Alternatively, in the second option, when using the sealed pressure membrane35, the fluid under pressure is inside the sealed pressure membrane35of the inner cylinder assembly and the cylindrical shaped body member6of the inner cylinder assembly includes at least one base valve58which is connected with the sealed pressure membrane35, the base valve58is positioned between an end wall or base end32and the inner end surface52, wherein the base valve58functions is to provide a one way entry aperture for filling the sealed pressure membrane35with the fluid contained, therein.

Alternatively, in the third option, the cylindrical shaped body member6has a hollow enclosed interior space inside, therein the hollow enclosed interior space defines a cylindrical volumetric space or sealed pressure chamber34, bordered by an interior curved wall surface36being a pressurized volume adapted to retain a fluid under pressure therein. For a constant pressure of the fluid inside the sealed pressure chamber34, the outer planar surface49of the piston member46including the piston valves55(the outer surface63of the valve head60), are coated or laminated with a flexible resilient membrane69, the coating or lamination can be done with resilient materials such as for example silicone or rubber. When using the sealed pressure chamber34, the piston member46of the cylindrical shaped body member6of the inner cylinder assembly includes at least one base valve58which is located and positioned in an end wall or base end32wherein the base valve58functions is to provide a one way entry aperture for filling the sealed pressure chamber34with the fluid contained, therein.

Preferably, the first threaded portion19and the second threaded portion37are shaped and oriented to have a forward angled degree angle and a further forward 90 degree angle as shown inFIG. 2, with the resilient ring member17and the elongated slits16, whereby initial movement between the outer cylinder assembly and the inner cylinder assembly is the only one way elastic movement, whereby the external impact force F1pushes the cap shaped body member5of the outer cylinder assembly, to cause the first threaded portion19to jump over the second threaded portion37of the cylindrical shaped body member6of the inner cylinder assembly.

Preferably, the length of the cylindrical shaped body member6of the inner cylinder assembly is longer than the length of the cap shaped body member5of the outer cylinder assembly, having an exterior length38commensurate with a longitudinal axis15of the shock absorption device1and an exterior diameter39, also having a transverse axis located at right angles to the longitudinal axis15of the shock absorption device1.

Preferably, the outer cylinder assembly can be threadingly engaged or disengaged with respect to the inner cylinder assembly to create an overlap length74there between the first threaded portion19and the second threaded portion37, wherein the shock absorption device1is ready for use when there is a certain distance71between the protruding member22and the piston member46.

Preferably the inner surface shape of the cap shaped body member5and the outer surface shape of the cylindrical shaped body member6are similar thereby enabling them to be threadingly engagable.

In a second aspect, the invention resides in a method of assembly of a shock absorption device1for a structure, wherein the method includes the following steps:

Step 1—Evaluate and calculate an external impact force F1wherein the external impact force F1can be calculated depending on the speed of the vehicle, on the weight of the vehicle, etc.;

Step 2—In the first option, when using the compressive member56, the fluid pressure does not exist;

Step 2.1—Alternatively, in the second option, when using the sealed pressure membrane35, calculate the pressure of the fluid from inside the sealed pressure membrane35, according to the external impact force F1;

Step 2.2—Alternatively, in the third option, when using the sealed pressure chamber34, calculate the pressure of the fluid from the sealed pressure chamber34according to the external impact force F1;

Step 3—In the first option, when using a compressive member56, calculate the dimensions of the compressive member56, according to the external impact force F1;

Step 3.1—Alternatively, in the second option, when using a sealed pressure membrane35, calculate the dimensions of the sealed pressure membrane35, according to the external impact force F1;

Step 3.2—Alternatively, in the third option, when using a sealed pressure chamber34, calculate the dimensions of the sealed pressure chamber34, according to the external impact force F1;

Step 4—Calculate the dimensions of the first spring member24and the second spring member57, according to the external impact force F1;

Step 5—Calculate the dimensions of the first threaded portion19and the second threaded portion37, according to the external impact force F1;

Step 6—Form and provide the outer cylinder assembly, which includes a cap shaped body member5consisting of at least one elongated slit16, at least one exterior circumferential groove17a, a first threaded portion19and a protruding member22, a first spring member24at least one resilient ring member17;

Step 7—Assemble the outer cylinder assembly: inside the cap shaped body member5fix the protruding member22, add the first spring member24located around the protruding member22and add the resilient ring member17in the exterior circumferential groove17alocated outside the cap shaped body member5on the exterior curved wall surface20;

Step 8—In the first option, when using a compressive member56, form and provide the inner cylinder assembly, which includes a cylindrical shaped body member6consisting of a second threaded portion37, an interior circumferential groove47aand a guide member40, a spacer ring member44, a piston member46, a second spring member57, a clip member47, a compressive member56;

Step 8.1—Alternatively, in the second option, when using a sealed pressure membrane35, form and provide the inner cylinder assembly, which includes a cylindrical shaped body member6consisting of a second threaded portion37, an opening for the base valve58, an interior circumferential groove47aand a guide member40, a spacer ring member44, a piston member46, a second spring member57, a clip member47, a sealed pressure membrane35;

Step 8.2—Alternatively, in the third option, when using a sealed pressure chamber34, form and provide the inner cylinder assembly, which includes a cylindrical shaped body member6consisting of a second threaded portion37, an opening for the base valve58and an interior circumferential groove47a, a guide member40, a spacer ring member44, a piston member46, a second spring member57, a clip member47, a sealed pressure chamber34;

Step 9—In the first option, when using a compressive member56, assemble the inner cylinder assembly: inside the cylindrical shape body member6add the second spring member57, add the compressive member56adjacent with the second spring member57;

Step 9.1—Alternatively, in the second option, when using a sealed pressure membrane35, assemble the inner cylinder assembly: inside the cylindrical shape body member6add the second spring member57, add the sealed pressure membrane35and fix the base valve58to the base end32of the cylindrical shaped body member6;

Step 9.2—Alternatively, in the third option, when using a sealed pressure chamber34, assemble the inner cylinder assembly: inside the cylindrical shape body member6add the second spring member57, add the sealed pressure chamber and fix the base valve58to the base end32of the cylindrical shaped body member6;

Step 10—Next add the piston member46;

Step 11—Alternatively, in the third option, when using a sealed pressure chamber34, optionally seal, laminate or coat the whole piston member outside surface49, including the surface of the piston valves55with a flexible resilient membrane69;

Step 12—Add the spacer ring member44, then add the guide member40and finally add the clip member47in the interior circumferential groove47a;

Step 13—In the first option, when using the compressive member56there are no fluid under pressure and no base valve58

Step 13.1—Alternatively, in the second option, when using the sealed pressure membrane35or in the third option, when using the sealed pressure chamber34, insert the fluid inside the sealed pressure membrane35or inside the sealed pressure chamber34through the base valve58at a certain pressure, calculated at Step 2;

Step 14—Assemble the shock absorption device1to be ready for mounting: screw a small portion of the first threaded portion19of the outer cylinder assembly to a small portion of the second threaded portion37of the inner cylinder assembly, so that at least a portion of the protruding member22is going through the aperture45of the guide member40and an end of the first spring member24is located on the outer planar surface42of the guide member40to be in an non activated position, with a certain overlap portion73between the outer cylinder assembly and the inner cylinder assembly, then mount the shock absorption device1on any place (surface) of the vehicle;

Step 15—The shock absorption device1is ready for use by being in a non-activated position, whereby the external force F1can be applied.

In a third aspect, the invention resides in method of utilizing a shock absorption device1for a structure, wherein the method includes the following steps:

Step 1—The shock absorption device1is first assembled in a non-activated position, when there is a set distance71between the body end face70of the protruding member22and the piston member46, with a certain overlap73between the outer cylinder assembly and the inner cylinder assembly;

Step 2—An external impact force F1is applied to the surface of the base end7of the cap shaped body member5of the outer cylinder assembly;

Step 3—The first threaded portion19jumps over the second threaded portion37and the protruding member22moves through the aperture45of the guide member40, until the distance71between the body end face70of the protruding member22and the outer planar surface49of the piston member46is closed;

Step 4—In the first option, when using the compressive member, further, because of the application of the external impact force F1, the body end face70of the protruding member22pushes the outer planar surface49of the piston member46that pushes and compresses the second spring member57and the compressive member56;

Step 4.1—Alternatively, in the second option, when using the sealed pressure membrane35, or in the third option, when using the sealed pressure chamber, because of the application of the external impact force F1, the body end face70of the protruding member22pushes the outer planar surface49of the piston member46that pushes and compresses the second spring member57and the fluid under pressure from the sealed pressure membrane35or from the sealed pressure chamber34,

Step 5—In the first option, when using the compressive member56, the second spring member57and the compressive member56will relax and together will provide a reactive force F2;

Step 5.1—Alternatively, in the second option, when using a sealed pressure membrane35, the second spring member57and the compressed fluid under pressure from the sealed pressure membrane35will relax and together will provide a reactive force F2;

Step 5.2—Alternatively, in the third option, when using a sealed pressure chamber34, the second spring member57and the compressed fluid under pressure from the sealed pressure chamber34will relax and together will provide a reactive force F2, while the fluid under pressure from the sealed pressure chamber34will be evacuated or discharged through the piston valves55;

Step 6—The reactive force F2will increase and will push back the piston member46and also the protruding member22and the first spring member24;

Step 7—When the reactive force F2equalizes the external impact force F1(F2=F1), the shock absorption device1will be locked in a certain position;

Step 8—By simply unscrewing the outer cylinder assembly and the inner cylinder assembly, the shock absorption device1will return to its original position or non-activated position, in order to be reused.

DESCRIPTION OF DRAWINGS

The following description will describe the invention in relation to preferred embodiments of the invention, namely a shock absorption device1. The invention is in no way limited to these preferred embodiments as they are purely to exemplify the invention only and that possible variations and modifications would be readily apparent without departing from the scope of the invention.

FIGS. 1-26show the shock absorption device1which includes an outer cylinder assembly and an inner cylinder assembly.

The Outer Cylinder Assembly

The outer cylinder assembly includes the following components of a cap shaped body member5, which includes at least one elongated slit16, with a width or gap18, at least one exterior circumferential groove17a, at least one first threaded portion19and having a hollow space therein which includes at least one protruding member22, at least one first biasing means in the form of a first spring member24, at least one resilient ring member17.

The cap shaped body member5of the outer cylinder assembly has a cylindrical shaped body with a base end7which is adapted to receive the external impact force F1, an open end10, an interior end surface12, with an exterior length13, an exterior diameter14, with an exterior curved side walls8, with a hollow interior space9, with an exterior curved wall surface20, an interior curved wall surface11which includes a series of ridges and grooves such as for example, a first threaded portion19.

The base end7of the cap shaped body member5has a flat or planar shape to facilitate an easy application of an external impact force F1on the whole surface.

The cap shaped body member5has an exterior length dimension13defined from the base end7to the open end10, defining a longitudinal axis15of the outer and inner cylinder assemblies or shock absorption device1. An exterior diameter14is oriented at right angles to the longitudinal axis15of the shock absorption device1.

The cap shaped body member5of the outer cylinder assembly also includes at least one elongated slit16, oriented in a longitudinal direction, parallel with the longitudinal axis15of the shock absorption device1. Each elongated slits16has a width or gap18.

At least one resilient ring member17is fixed in at least one exterior circumferential groove17a, on and over the exterior curved wall surface20, in order to close or reduce the gap18of the elongated slits16, to reduce the exterior diameter14of the cap shaped body member5and to better hold the outer cylinder assembly to the inner cylinder assembly.

The resilient ring member17is provided to outwardly encircle and abut the exterior curved wall surface20of the cap shaped body member5, to provide an elastic movement of itself in order to allow the first threaded portion19of the cap shaped body member5to jump over the second threaded portion37of the cylindrical shaped body member6when an external impact force F1is applied, to allow one way movement or direction only, not in reverse wherein the elongated slit16has a longitudinal axis parallel with the longitudinal axis15of the shock absorption device1and the resilient ring member17has an axis in a transverse direction with regard to the longitudinal axis15of the shock absorption device1.

The resilient ring member17provides an elastic movement, having spring like characteristics, to enable it to hold and be temporarily stretched or elastically deformable to allow only one way movement of the outer cylinder assembly over the inner cylinder assembly or vice versa, when a certain external impact force F1is applied, allowing a forward jumping of the first threaded portion19over the second threaded portion37but not in reverse, because of the 90 degree angle of part of the first threaded portion19and the second threaded portion37, then to return to its original shape to hold the outer cylinder assembly to the inner cylinder assembly.

Each resilient ring member17can be shaped to allow holding or clamping to any outside shape of the cap shaped body member5, such as for example circular in shape with at least one ring (e.g. whatever shape of the exterior curved wall surface20of the cap shaped body member5can provide) with at least one split, gap, space or means to allow some resilient stretching and restoration.

At least one protruding member22is connected or joined to an interior end surface12of the cap shaped body member5and is oriented in a longitudinal direction, parallel with the longitudinal axis15of the inner and outer cylinder assemblies or shock absorption device1. The protruding member22is an elongate shaped body which can have the same length, can be shorter in length or be longer in length than the exterior length13of the cap shaped body member5. For example its distal end called a body end face70, can be at least recessed with respect to an entry open end31of the body of the cylindrical shaped body member6. In this example the protruding member22has a circular cross section.

The first biasing means which is in the form of at least one first spring member24, which in this example is rectangular in shape as seen inFIG. 2, when assembled is located in the hollow interior space9of the cap shaped body member5and is abutting, connected or joined with the interior end surface12and is located on and around an outside (spaced or abutting) of the protruding member22, which in this example is circular in cross sectional shape as seen inFIG. 2, also is adjacent with an interior end surface12, with the first threaded portion19, with the clip member47and with the guide member40.

The Inner Cylinder Assembly

The inner cylinder assembly includes the following components of a cylindrical shaped body member6which includes at least one interior circumferential groove47a, at least one second threaded portion37and having a hollow space therein which includes therein, at least one compressive member56, at least one second biasing means in the form of the second spring member57, at least one movable piston member46, at least one spacer ring member44, at least one guide member40, at least one clip member47.

The clip member47is located close to or adjacent the open or entrance end31followed by underneath and within the hollow space of cylindrical shaped body member6, those components in an abutting relationship, the guide member40, then the spacer ring member and then the piston member46which then abuts an end of second spring member57.

The inner cylinder assembly is sized and dimensioned to fit at least within the hollow interior space9of the outer cylinder assembly. In this example, the inner cylinder assembly is sized to threadingly fit within the hollow interior space9of the outer cylinder assembly and also protrude outwardly thereof.

The cylindrical shaped body member6of the inner cylinder assembly has a cylindrical shaped body with an open or entrance (or first end)31, a base end (or second end)32, with an exterior length38, an exterior diameter39, with an exterior curved side walls33, with an interior curved wall surface36, an interior end surface52, an exterior curved wall surface30which includes a series of ridges and grooves such as for example, a second threaded portion37.

In a first option (as shown inFIGS. 1, 4, 15, 16, 16A, 22, 23, 24, 25, 26) the inner cylinder assembly include a compressive member56, in the shape of a cylindrical member, formed of a suitable deformable material, which is located within the hollow interior space of the cylindrical shaped body member6, adjacent with the interior curved wall surface36, with the interior end surface52, with the second spring member57, with the piston member46and abutting the inner surfaces of the cylindrical shaped body member6, with the spacer ring member44, with the guide member40and with the clip member47. The material for example, is a high performance elastomer polyester (HPEP) material and include a temperature range of −40 F to +120 F, being highly inert to most chemicals and lubricants. The compressive member56in the form of a cylindrical high performance elastomer polyester member, can be formed as a substantially solid member or have at least one aperture or recess therein. Second spring member57encircles the compressive member56ie the compressive member56is located within the spring member57.

Also, another material for the compressive member56can be rubber, plastic, or another elastic and compressive material.

Alternatively, in a second option (as shown inFIGS. 1A, 4A, 14, 14A, 17, 18, 19, 20, 21), instead of the compressive member56the inner cylinder assembly include the sealed pressure membrane35, in the shape of a cylindrical member, formed of a pressure resistant material, which is located within the hollow interior space of the cylindrical shaped body member6, adjacent with the interior curved wall surface36, with the interior end surface52, with the second spring member57, with the piston member46, with the spacer ring member44, with the guide member40and with the clip member47. A fluid under pressure can be inserted inside the sealed pressure membrane35through the at least one base valve58at a certain pressure, wherein the base valve58functions is to provide a only one way entry aperture for filling the sealed pressure membrane35with the fluid contained, therein.

Alternatively, in the third option (as shown inFIGS. 2, 11, 12, 13), instead of the compressive member56the inner cylinder assembly include the sealed pressure chamber34. The hollow enclosed interior space of the cylindrical shaped body member6, defines a cylindrical volumetric space as a sealed pressure chamber34, being a pressurized volume adapted to sealingly retain a fluid under pressure therein adjacent with the interior curved wall surface36, with the interior end surface52, with the second spring member57, with the piston member46, with the spacer ring member44, with the guide member40and with the clip member47. The sealed pressure chamber34can retain a fluid under pressure directly in the hollow interior space of the cylindrical shaped body member6, inserted through the at least one base valve58at a certain pressure, wherein the base valve58functions is to provide a only one way entry aperture for filling the sealed pressure chamber34with the fluid contained, therein.

The cylindrical shaped body member6includes at least one guide member40at its entrance (or in a different position), which is substantially circular in shape to allow sliding engagement within the cylindrically shaped body, and has curved side surface41(which can be continuous or not), an outer planar surface42, an inner planar surface43, between the outer planar surface42and the inner planar surface43there is provided with a slot or aperture45being provided to slidably guide and locate at least a portion of the protruding member22, there through. In use, the curved side surface41of the guide member40slidably abut interior curved wall surface36of the cylindrical shaped body member6.

The cylindrical shaped body member6includes at least one spacer ring member44which is provided adjacent the guide member40, and the piston member46. In this example ring member44is located between the guide member40and piston member46.

At least one clip member47can be movably located in an interior circumferential groove47a, which is provided in or near the first end31of the cylindrical shaped body member6, the clip member47is also located adjacent with at least one guide member40. The clip member47can be a circlip and functions to removably hold all the components, including the compressive member56(or a sealed pressure membrane35or the sealed pressure chamber34), the second spring member57, the piston member46, the spacer ring member44and the guide member40of the inner cylinder assembly. In this example, the clip member47is located between an end of first end31and the guide member40. Also the guide member40is located between clip member47and spacer ring member44all being located near the open end31.

A movable piston member46is located adjacent with the guide member40and is movably and slidably mounted therein, the piston member46being shaped as a disc having a circular cross section, with an outer diameter48, an outer planar surface49separated from an inner planar surface50by a thickness dimension51and a curved side surfaces54. In this example, the piston member46can be located between the spacer ring member44in one side and the second spring member57and the compressive member56, in the first option, or the sealed pressure membrane35, in the second option, or the sealed pressure chamber34in the third option, in another side.

Alternatively, in the third option, when using the sealed pressure chamber34, at least one piston aperture or hole53can be provided there through piston member46for the location of at least one piston valve55which is designed to allow the fluid to be expelled there through if required, from inside of the sealed pressure chamber34. In use, the curved side surfaces54of the piston member46slidably abut the interior curved wall surface36of the cylindrical shaped body member6.

The second biasing means which is in the form of at least one second spring member57which in this example is rectangular in shape as seen inFIG. 2, when assembled is located in the hollow interior space of the cylindrical shaped body member6, adjacent with the piston member46, with the compressive member56(in the first option), with the interior end surface52, with the interior curved wall surface36.

Alternatively, the second spring member57is adjacent also with the base valve58, in the second option, when using the sealed pressure membrane35or in the third option, when using the sealed pressure chamber34.

The second spring member57functions to hold or position the piston member46and is positioned to extend in its relaxed position from an inner planar surface50of the piston member46to an interior end surface52.

Alternatively, in the second option, when using the sealed pressure membrane35or in the third option, when using the sealed pressure chamber34, one base valve58can be positioned adjacent with the base end32and the interior end surface52of the cylindrical shaped body member6, having an aperture there through which is designed to allow the fluid to be one way inputted only into the sealed pressure membrane35or the sealed pressure chamber34.

Alternatively, in the third option, when using a sealed pressure chamber34, the piston member46needs to have a low tolerance in terms of size and shape in order to maintain the pressure of the fluid tightness inside the sealed pressure chamber34. For a good tight pressure of the sealed pressure chamber34, the outer planar surface49of the piston member46and piston valves55can be coated or laminated with a flexible resilient membrane69. The coating or lamination can be done with resilient materials such as for example silicone or rubber.

Due to the decreased volume of the sealed pressure chamber34during the action of the external impact force F1, at least some of the fluid under pressure will be discharged through the piston valves55, whereby the piston valves55are designed to allow a sufficient flow of pressurized or compressed fluid from the sealed pressure chamber34combined with the relaxation or deformation of the second spring member57, until F2=F1.

The fluid from inside the sealed pressure membrane35or a sealed pressure chamber34, has a certain pressure which can be calculated according to the external impact force F1.

Depending on the magnitude of the external impact force F1we can calculate the dimensions (the volume, the diameter, the length, etc.) of the compressive member56, in the first option, or of the sealed pressure membrane35in the second option, or of the sealed pressure chamber34, on the third option. Also, depending on the magnitude of the external impact force F1, we can calculate the dimensions for the first spring member24, the second spring member57, the first threaded portion19, and the second threaded portion37.

The shock absorption device1is in a non-active position, when the first spring member24, the second spring member57and the compressive member56, in the first option (or the sealed pressure membrane35, in the second option or the fluid under pressure from the sealed pressure chamber34, in the third option) are in a relaxed position (i.e. non-compressed), when the outer cylinder assembly and the inner cylinder assembly minimally overlap.

In the first option, when using the compressive member56, as shown in theFIG. 25, or in the second option, when using the sealed pressure membrane35, as shown in theFIG. 20, the pre-use orientation of the inner cylinder assembly with respect to the outer cylinder assembly, whereby the first threaded portion19of the cap shaped body member5is screwed by only a small portion of its entire threaded extent in a small portion of the second threaded portion37of the cylindrical shaped body member6(eg an overlap portion73and an overall length74), so that at least a portion of the protruding member22is going through the aperture45of the guide member40and an end of the first spring member24is located on the outer planar surface42of the guide member40.

When the protruding member22is in place there is a distance71, between the body end face70of the protruding member22and the outer planar surface49of the piston member46.

When an external impact force F1is applied, the guide member40allows the protruding member22to move through with the set or calculated distance71, before hitting the piston member46. If the external impact force F1is low or the distance71is not used up, the shock absorption device1will not be activated.

The shock absorption device1can be said to be in a non-activated position, when there is a distance71between the body end face70of the protruding member22and the outer planar surface49of the piston member46.

The shock absorption device1can be said to be in an activated position, when the body end face70of the protruding member22pushes the outer surface49of the piston member46.

The first threaded portion19and the second threaded portion37are shaped and oriented to have a forward angled degree angle and a further forward 90 degree angle as shown inFIG. 2, with the resilient ring members17, whereby initial movement between the outer cylinder assembly and the inner cylinder assembly6is the only one way elastic movement, whereby the external impact force F1pushes the outer cylinder assembly, to cause the first threaded portion19of the cap shaped body member5of the outer cylinder assembly to jump over the second threaded portion37of the cylindrical shaped body member6of the inner cylinder assembly.

When the reactive force F2will equalize the external impact force F1(F2=F1), the shock absorption device1will be locked in a random position whereby the outer cylinder assembly and the inner cylinder assembly are not able to disengage with respect to each other because of the only one way meshing of the first threaded portion19with the second threaded portion37, when the external force F1is being applied, which only allows one way directional movement by elastic jumping of the two threaded portions (19and37) to cause compression of the first spring member24, of the second spring member57and of the compressive member56, in the first option (or the sealed pressure membrane35, in the second option, or the sealed pressure chamber34, in the third option). When (F2=F1) the outer cylinder assembly and the inner cylinder assembly are locked in place

The first threaded portion19and the second threaded portion37are formed in such way that the shock absorption device1will stop and not automatically return to its original position (i.e. only one way directional movement of the inner cylinder assembly with respect to the outer cylinder assembly or vice versa). However, by simply unscrewing the outer cylinder assembly and the inner cylinder assembly, the shock absorption device1(i.e. the outer with respect to the inner cylinder assemblies) will be back to its original state in order to be able to reuse it.

The absorption of the external impact force F1occurs in such a way that the shock absorption device1is locked in a random position, when F2=F1.

When the external impact force F1is applied on the surface of the base end7of the cap shaped body member5of the outer cylinder assembly, the second spring member57, and the compressive member56(or a sealed pressure membrane35or a sealed pressure chamber34) will be compressed to a certain point and then it will relax in order to push back the piston member46and therefore to help increasing the reactive force F2, until F1=F2.

A method of assembly of the shock absorption device1for a structure includes the following steps:

Step 1—Evaluate and calculate an external impact force F1wherein the external impact force F1can be calculated depending on the speed of the vehicle, on the weight of the vehicle, etc.;

Step 2—In the first option, when using the compressive member56, the fluid pressure does not exist;

Step 2.1—Alternatively, in the second option, when using the sealed pressure membrane35, calculate the pressure of the fluid from inside the sealed pressure membrane35, according to the external impact force F1;

Step 2.2—Alternatively, in the third option, when using the sealed pressure chamber34, calculate the pressure of the fluid from the sealed pressure chamber34according to the external impact force F1;

Step 3—In the first option, when using a compressive member56, calculate the dimensions of the compressive member56, according to the external impact force F1;

Step 3.1—Alternatively, in the second option, when using a sealed pressure membrane35, calculate the dimensions of the sealed pressure membrane35, according to the external impact force F1;

Step 3.2—Alternatively, in the third option, when using a sealed pressure chamber34, calculate the dimensions of the sealed pressure chamber34, according to the external impact force F1;

Step 4—Calculate the dimensions of the first spring member24and the second spring member57, according to the external impact force F1;

Step 5—Calculate the dimensions of the first threaded portion19and the second threaded portion37, according to the external impact force F1;

Step 6—Form and provide the outer cylinder assembly, which includes a cap shaped body member5consisting of at least one elongated slit16, at least one exterior circumferential groove17a, a first threaded portion19and a protruding member22, a first spring member24at least one resilient ring member17;

Step 7—Assemble the outer cylinder assembly: inside the cap shaped body member5fix the protruding member22, add the first spring member24located around the protruding member22and add the resilient ring member17in the exterior circumferential groove17alocated outside the cap shaped body member5on the exterior curved wall surface20;

Step 8—In the first option, when using a compressive member56, form and provide the inner cylinder assembly, which includes a cylindrical shaped body member6consisting of a second threaded portion37, an interior circumferential groove47aand a guide member40, a spacer ring member44, a piston member46, a second spring member57, a clip member47, a compressive member56;

Step 8.1—Alternatively, in the second option, when using a sealed pressure membrane35, form and provide the inner cylinder assembly, which includes a cylindrical shaped body member6consisting of a second threaded portion37, an opening for the base valve58, an interior circumferential groove47aand a guide member40, a spacer ring member44, a piston member46, a second spring member57, a clip member47, a sealed pressure membrane35;

Step 8.2—Alternatively, in the third option, when using a sealed pressure chamber34, form and provide the inner cylinder assembly, which includes a cylindrical shaped body member6consisting of a second threaded portion37, an opening for the base valve58and an interior circumferential groove47a, a guide member40, a spacer ring member44, a piston member46, a second spring member57, a clip member47, a sealed pressure chamber34;

Step 9—In the first option, when using a compressive member56, assemble the inner cylinder assembly: inside the cylindrical shape body member6add the second spring member57, add the compressive member56adjacent with the second spring member57;

Step 9.1—Alternatively, in the second option, when using a sealed pressure membrane35, assemble the inner cylinder assembly: inside the cylindrical shape body member6add the second spring member57, add the sealed pressure membrane35and fix the base valve58to the base end32of the cylindrical shaped body member6;

Step 9.2—Alternatively, in the third option, when using a sealed pressure chamber34, assemble the inner cylinder assembly: inside the cylindrical shape body member6add the second spring member57, add the sealed pressure chamber and fix the base valve58to the base end32of the cylindrical shaped body member6;

Step 10—Next add the piston member46;

Step 11—Alternatively, in the third option, when using a sealed pressure chamber34, optionally seal, laminate or coat the whole piston member outside surface49, including the surface of the piston valves55with a flexible resilient membrane69;

Step 12—Add the spacer ring member44, then add the guide member40and finally add the clip member47in the interior circumferential groove47a;

Step 13—In the first option, when using the compressive member56there are no fluid under pressure and no base valve58

Step 13.1—Alternatively, in the second option, when using the sealed pressure membrane35or in the third option, when using the sealed pressure chamber34, insert the fluid inside the sealed pressure membrane35or inside the sealed pressure chamber34through the base valve58at a certain pressure, calculated at Step 2;

Step 14—Assemble the shock absorption device1to be ready for mounting: screw a small portion of the first threaded portion19of the outer cylinder assembly to a small portion of the second threaded portion37of the inner cylinder assembly, so that at least a portion of the protruding member22is going through the aperture45of the guide member40and an end of the first spring member24is located on the outer planar surface42of the guide member40to be in an non activated position, with a certain overlap portion73between the outer cylinder assembly and the inner cylinder assembly, then mount the shock absorption device1on any place (surface) of the vehicle;

Step 15—The shock absorption device1is ready for use by being in a non-activated position, whereby the external force F1can be applied.

A method of utilizing a shock absorption device1for a structure includes the following steps:

Step 1—The shock absorption device1is first assembled in a non-activated position, when there is a set distance71between the body end face70of the protruding member22and the piston member46, with a certain overlap73between the outer cylinder assembly and the inner cylinder assembly;

Step 2—An external impact force F1is applied to the surface of the base end7of the cap shaped body member5of the outer cylinder assembly;

Step 3—The first threaded portion19jumps over the second threaded portion37and the protruding member22moves through the aperture45of the guide member40, until the distance71between the body end face70of the protruding member22and the outer planar surface49of the piston member46is closed;

Step 4—In the first option, when using the compressive member, further, because of the application of the external impact force F1, the body end face70of the protruding member22pushes the outer planar surface49of the piston member46that pushes and compresses the second spring member57and the compressive member56;

Step 4.1—Alternatively, in the second option, when using the sealed pressure membrane35, or in the third option, when using the sealed pressure chamber, because of the application of the external impact force F1, the body end face70of the protruding member22pushes the outer planar surface49of the piston member46that pushes and compresses the second spring member57and the fluid under pressure from the sealed pressure membrane35or from the sealed pressure chamber34,

Step 5—In the first option, when using the compressive member56, the second spring member57and the compressive member56will relax and together will provide a reactive force F2;

Step 5.1—Alternatively, in the second option, when using a sealed pressure membrane35, the second spring member57and the compressed fluid under pressure from the sealed pressure membrane35will relax and together will provide a reactive force F2;

Step 5.2—Alternatively, in the third option, when using a sealed pressure chamber34, the second spring member57and the compressed fluid under pressure from the sealed pressure chamber34will relax and together will provide a reactive force F2, while the fluid under pressure from the sealed pressure chamber34will be evacuated or discharged through the piston valves55;

Step 6—The reactive force F2will increase and will push back the piston member46and also the protruding member22and the first spring member24;

Step 7—When the reactive force F2equalizes the external impact force F1(F2=F1), the shock absorption device1will be locked in a certain position;

Step 8—By simply unscrewing the outer cylinder assembly and the inner cylinder assembly, the shock absorption device1will return to its original position or non-activated position, in order to be reused.

Some Advantages of the Present Invention

Portable

Modest cost

Functional simplicity

Reliable operation

Able to be re-used

Able to be retrofitted

Simple construction

Simple to manufacture

Can be made to any size

Reduces forces of any impact

Can be calibrated to any size force

Has a single one way action of movement of the inner and outer cylinder assemblies

Able to be used in many situations and on many objects

Able to be fitted to or be including in new constructions

The Shock Absorption Device1has the following parts or components:5. Cap shaped body member of the Outer cylinder assembly6. Cylindrical shaped body member of the Inner cylinder assembly7. Base end of58. Exterior curved side walls of59. Hollow interior space of510. Open end of511. Interior curved wall surface of512. Interior end surface of513. Exterior length of514. Exterior diameter of515. Longitudinal axis of the device116. Elongated slit17. Resilient ring member17a. Exterior circumferential groove18. Width/Gap of16(of5)19. First threaded portion20. Exterior curved wall surface of522. Protruding member24. First biasing means as a first spring member30. Exterior curved wall surface of631. Open end of632. Base end of633. Exterior curved side walls of634. Sealed pressure chamber35. Sealed pressure membrane36. Interior curved wall surface of637. Second threaded portion38. Exterior length of639. Exterior diameter of640. Guide member41. Curved side surface of4042. Outer planar surface of4043. Inner planar surface of4044. Spacer ring member45. Aperture of4046. Piston member47. Clip member47a. Interior circumferential groove48. Outer diameter of4649. Outer planar surface of4650. Inner planar surface of4652. Interior end surface of653. Aperture of4654. Curved side surface of4655. Piston valves56. Compressive member57. Second biasing means as a second spring member58. Base valve60. Head portion62. Shaft portion63. Head top face64. Distal end65. Nut66. Third spring member67. Washer69. Flexible resilient membrane70. Body end face of2271. Distance between22and4673. Overlap portion74. Overall lengthF1—external impact forceF2—reactive force
Variations

Throughout the description of this specification, the word “comprise” and variations of that word such as “comprising” and “comprises”, are not intended to exclude other additives, components, integers or steps.

The use of ‘inner’ and ‘outer’ are relative terms and can be swapped depending of what use is required. The inner surface of the cap shaped body5and outer surface of the cylindrical shaped body member6need to be curved or circular or be substantially similar to allow the body5and member6to be threadingly engageable. The outer surface of body5can be formed of any shape. The inner surface of member6can be of any shape as long as the components can be inserted therein.

Though the cap shaped body member5and the cylindrical shaped body member6are shown as being circular in cross section, other shapes are possible as long as they can threadably engage with each other or at least provide interlocking surfaces with other surfaces not necessarily being the same. The dimensions and shape of the shock absorption device1and its components can be varied to suit the type of the object which needs to be protected from an impact and the size of possible impact.

The size, shape and number of the biasing means including the first spring member24and the second spring member57can also be varied or selected from helical springs, compression springs, extension springs, leaf springs, flat springs, torsion springs, helical extension springs, helical coil springs, conical coil springs and hydraulic springs.

The first spring member24can be joined or connected to the interior end surface12of the cap shaped body member5. The second spring member57can be located adjacent with the compressive member56(or the sealed pressure membrane35, or a sealed pressure chamber34), with the interior curved wall surface36, with the interior end surface52and with the inner planar surface50of the piston member46.

The cap shaped body member5of the outer cylinder assembly can have an outer hexagonal shape to facilitate the unscrewing process with respect to the cylindrical shaped body member

Additionally or alternatively the cap shaped body member5can have holes for assisting in unscrewing.

The base end7of the cap shaped body member5of the outer cylinder assembly is shown having a non-rounded outer end surface with means to allow driving or rotatably adjusting, though other shapes are also possible such as for example a rounded end with ribs or apertures.

The resilient ring member17is shown as being one ring but equally more rings or other forms of resilient means like a spring can also be used of any suitable material.FIGS. 1, 1A, 2, 3, 3A, 5, 14 and 16show the ring member as a circular cross section but equally other cross sections are possible such as, as shown inFIGS. 14A and 16Awhere there is a rectangular cross section.

Yet other options include the use of acoustic and optical sensing systems.

The protruding member22is shown as being circular in cross section but equally other shapes are also possible. The aperture45of the guide member40would be shaped to match or at least allow the protruding member22there through and be guided.

The protruding member22can be formed integrally or joined or connected to the interior end surface12of the cap shaped body member5. The shape and the cross section can also be varied like for example it can be round or solid or circular or hollow or be adjustable. The first threaded portion19and the second threaded portion37can have other shapes or at least have intermeshing ridges and grooves.

The guide member40as shown inFIG. 7having a non-curved inner planar surface43but equally other shapes are possible such as a curved inner planar surface43with the slot45therein.

In the first option, when using the compressive member56or in the second option, when using the sealed pressure membrane35, the piston member46can be formed as a hollow or solid member, as shown inFIG. 9.

In the third option, when using the sealed pressure chamber34, the piston member46can be formed as a solid member with at least one aperture or hole53is provided there through for the location of a piston valve55which is designed to allow the fluid to be expelled there through if required, from inside of the sealed pressure chamber34.

In the first option, when using the compressive member56or in the second option, when using the sealed pressure membrane35, the piston member46comprises a circular solid shaped disc member, as shown inFIG. 9.

In the third option, when using the sealed pressure chamber34, the piston member46, as shown inFIG. 11, comprises a circular shaped disc member with at least one aperture53there through for at least one piston valve55therein, wherein the piston valve55functions is to provide an exit of any excess fluid pressure from within the sealed pressure chamber34.

The piston valve55also includes a head portion60and a shaft portion62. The head portion60comprises a flared head end with a rounded head top face63. A top portion of the aperture in piston member46is also flared to complement the head shape of the piston valve55. The shaft portion62is adapted to protrude through the piston member46to extend into the sealed pressure chamber34and includes an elongate cylindrical body with a distal end64and an outer curved surface with a portion including a threaded surface with a locking nut65threadably engaged.

A conically shaped third spring member66is located on the outer surface between an inner surface of the piston member46and an inner surface of a washer67. A washer67can also be positioned between the end of the third spring66and the nut65.

The piston valves55can be calibrated valves composed with at least one flat or oval head portion60of a bolt or screws, with at least one conically shaped third spring member66, with at least one washer67and at least one nut65. The nut65is used to adjust the gas set pressure from the sealed pressure chamber34. The bolts or screws are inserted through the piston holes53in order to move and allow the enclosed fluid to be evacuated when the reactive force F2will increase.

In the first option, when using the compressive member56there is no fluid with a constant pressure inside the inner cylinder assembly and the cylindrical shaped body member6of the inner cylinder assembly has no valves.

In the second option, when using the sealed pressure membrane35, the fluid under pressure is inside the sealed pressure membrane35of the inner cylinder assembly and the cylindrical shaped body member6of the inner cylinder assembly includes at least one base valve58which is connected with the sealed pressure membrane35, the base valve58is positioned between an end wall or base end32and the inner end surface52, wherein the base valve58functions is to provide a one way entry aperture for filling the sealed pressure membrane35with the fluid contained, therein.

In the third option, the cylindrical shaped body member6has a hollow enclosed interior space inside, therein the hollow enclosed interior space defines a cylindrical volumetric space or sealed pressure chamber34, bordered by an interior curved wall surface36being a pressurized volume adapted to retain a fluid under pressure therein. In order to maintain a constant pressure of the fluid inside the sealed pressure chamber34, the outer planar surface49of the piston member46including the piston valves55(the outer surface63of the valve head60), are coated or laminated with a flexible resilient membrane69, the coating or lamination can be done with resilient materials such as for example silicone or rubber. When using the sealed pressure chamber34, the piston member46of the cylindrical shaped body member6of the inner cylinder assembly includes at least one base valve58which is located and positioned in an end wall or base end32wherein the base valve58functions is to provide a one way entry aperture for filling the sealed pressure chamber34with the fluid contained, therein.

The fluid under pressure from the sealed pressure membrane35or from the sealed pressure chamber34can be air, inert gas, nitrogen, etc.

The outer surfaces of the clip member47, guide member40, spacer ring member44and piston member46can be continuous or be gapped or intermittent as long as each is able to slidably inter-fit within the cylindrically shaped body6and perform its own particular function.

The overlap portion73can be any set distance including nothing to something depending on space and loading.

It will also be understood that where a product, method or process as herein described or claimed and that is sold incomplete, as individual components, or as a “kit of Parts”, that such exploitation will fall within the ambit of the invention. The shock Absorption device1(the outer cylinder assembly and the inner cylinder assembly) can be mounted (by bolting, screwing, welding, etc.) to any substrate or surface of the vehicle.

These and other features and characteristics of the present invention, as well as the method of operation and functions of the related elements of structures and the combination of parts and economics of manufacture, will become more apparent upon consideration of the following description with reference to the accompanying drawings, all of which form part of this specification, wherein like reference numerals designate corresponding parts in the various figures.