Abstract:
A new and improved trailer coupler which is spring loaded, and connected to the hitch ball of a towing vehicle is provided. Moreover, the new and improved trailer coupler has a latch activated from the top of the trailer coupler that is connected to a means for grasping and securing the hitch ball on a tow vehicle such that the trailer coupler does not unhitch from the ball of the tow vehicle. Further, the present invention provides a new and improved trailer coupler having a latch apparatus that facilitates engagement and disengagement of the trailer coupler to the hitch ball of the tow vehicle wherein the latch apparatus has a secondary locking mechanism in the form of a locking pin wherein the locking pin is placed in a position within the latch apparatus wherein the locking pin penetrates an opening within the latch such that the latch apparatus may not be manually or accidentally unlatched without prior removal of the locking pin.

Description:
BACKGROUND OF THE INVENTION  
       [0001]     1. Field of the Invention  
         [0002]     This invention generally relates to the field of trailer couplers. More particularly, the present invention relates to a device that couples a trailer to a hitch ball of a towing vehicle. Further, the invention relates to an improved device that allows for the coupling of a towed trailer to a hitch ball on a towing vehicle. The present invention relates to an improved trailer coupler with a unique latching system and a unique locking system that secures the towed trailer and that prevents accidental and unintentional disengagement of the trailer from the hitch ball of a towing vehicle. Moreover, the present invention relates to a trailer coupler that may not disengage from the hitch ball of a tow vehicle without completely unlocking the trailer coupler.  
         [0003]     2. Description of the Prior Art  
         [0004]     The numbers of trailers that are currently towed behind vehicles has greatly increased with the acceptance and increase of Sport Utility Vehicles and recreation vehicles. This allows greater vacation and leisure choices to consumers. The amount of recreation vehicles such as motorcycles, small boats, large boats, jet skis, and other types of recreation vehicles and the like have become relatively commonplace in today&#39;s leisure based atmosphere. Many people take these recreation vehicles and/or sport vehicles to a destination for vacations, on weekends, or holidays. However, most of these recreational vehicles must be towed to their point of destination before they may be utilized for their intended purpose. Many individuals have acquired towing vehicles that allow them to tow their recreational devices to their point of destination. Many of these vehicles such as trucks or sport utility vehicles, have built-in towing balls and/or hitches straight from the manufacturer. However, in order to connect the towing vehicles to the device to be transported, it is necessary to coupler the towing vehicle to the transported device. A common type of coupling system that has evolved includes a hitch ball on the towing vehicle and a coupler on the trailer with jaws gripping the ball. However, a problem with this gripping system is that the individual can never be quite sure that the gripping system has properly engaged the hitch ball and that the system will not disengage from the hitch ball.  
         [0005]     Another method that has been used to couple a towing vehicle to the desired towed device has been mating a socket receiver to a hitch ball. A popular variety uses a long, vertical sheathing attached to a female portion of the coupler, often referred to as gooseneck couplers. These types of couplers are often mated to a hitch ball mounted to a towing vehicle. In operation, a trailer with a gooseneck attachment is positioned over the ball and lowered onto the ball. The socket receiver should have a slightly larger diameter than the ball so that the receiver fully engages or mates with the ball. Generally, once the trailer is mated to the vehicle, a separate manual operation must be performed to ensure that the ball is locked into the receiving socket so that the receiver is no longer free to disengage from the ball.  
         [0006]     A problem with this type of prior art coupler is that it involves multiple steps to ensure proper engagement, and even then the coupler may not be adequately locked about the ball, which leads to potentially dangerous situations where the trailer disengages while being towed.  
         [0007]     Furthermore, in the prior art standard trailer hitches that use a similar mating system of a hitch ball attached to the rear of a vehicle, such as behind or on the rear bumper, these vehicles require the locking mechanism to also act as a support mechanism and often also a pulling function. These prior art trailer couplers are often difficult to lock and unlock and securing the absolute locking position is tenuous at best.  
         [0008]     To solve this problem, many trailer couplers have a secondary locking system that requires the user to use a separate manual operation to lock the device when the ball and coupler have been latched together. If a person fails to lock the device, then a potentially dangerous situation of disengagement of the coupler may occur.  
         [0009]     Thus, a need therefore exists for an improved trailer coupler that has a locking mechanism that ensures proper locking of the hitch ball before the latch may be secured. Moreover, a need exists for an improved trailer coupler that has an efficient, sleek design, but still incorporates a latching and locking system to secure a trailer to a towing vehicle.  
       SUMMARY OF THE INVENTION  
       [0010]     The present invention provides a new and improved trailer coupler which is spring loaded, and secured to the hitch ball of a towing vehicle. Moreover, the present invention is a new and improved trailer coupler that has a latch that may be activated from the top of the coupler to secure about the hitch ball of a tow vehicle such that the trailer coupler does not disengage from the hitch ball of the tow vehicle. Further, the present invention provides a new and improved trailer coupler having a grasping means to engage and disengage the hitch ball of the tow vehicle wherein the grasping means may additionally be secured with a manual locking pin being placed through the latch apparatus. When the locking pin is placed through the latch apparatus, the latch apparatus may not be manually or accidentally unlatched without prior removal of the locking pin.  
         [0011]     To this end, in an embodiment of the present invention, a trailer coupler to connect to a hitch ball of a towing vehicle is provided. The trailer coupler has a front portion of the trailer coupler having a latch attached thereto and a grasping means for grasping the hitch ball of the towing vehicle. Moreover, the trailer coupler has a ball receiving cavity positioned within the trailer coupler wherein said hitch ball of said towing vehicle is received in said ball receiving cavity of the trailer coupler. Further, the device has a spring housing having a spring positioned thereon wherein the spring acts on the latch of the trailer coupler. Moreover, the device has a spring housing having a spring positioned thereon and a locking pin for securing the latch when the latch is in the engaged or closed position.  
         [0012]     In an embodiment, the trailer coupler device further has a grasping means that is a slidable abutment which moves from a non-inclusive position within the ball receiving cavity to an inclusive position within the ball receiving cavity to engage the hitch ball of the tow vehicle.  
         [0013]     In an embodiment, the trailer coupler device has a grasping means that is a slidable abutment moving from a non-inclusive position within the ball receiving cavity when the latch is disengaged, to an inclusive position within the ball receiving cavity when the latch is engaged.  
         [0014]     In an embodiment, the trailer coupler device has a spring housing having a spring wherein said spring is compressed when the latch is in a disengaged or open position.  
         [0015]     In an embodiment, the trailer coupler device has a spring housing having a spring wherein the spring is released from a compressed state when the latch is in an engaged or closed position.  
         [0016]     In an embodiment, the trailer coupler device has a trailer coupler having a first opening and a second opening thereon wherein the locking pin may enter from the first opening on a first side of the trailer coupler and further wherein the locking pin may exit via the second opening on a second side of the trailer coupler.  
         [0017]     In an embodiment, the trailer coupler device has a trailer coupler having a first opening and a second opening thereon and said latch having a first opening and a second opening thereon wherein the locking pin may enter from the first opening on a first side of the trailer coupler, passes through the first opening on the latch. Further, the locking pin may exit via the second opening on a second side of the trailer coupler after passing through the second opening on said latch.  
         [0018]     In an embodiment, the trailer coupler device has a latch having connection shaft connected thereto to connect the latch to the grasping means wherein the connection shaft has an opening thereon and further wherein the locking pin penetrates the opening on the connection shaft when the latch is in the closed or engaged position.  
         [0019]     In an embodiment, the trailer coupler device has a trailer coupler having a first opening and a second opening thereon. The latch has a first opening and a second opening thereon and the trailer coupler having a connection shaft wherein the connection shaft attaches the latch to said grasping means. The connection shaft has an opening thereon. The locking pin passes through the first opening on a first side of the trailer coupler, passes through the first opening on the latch and the opening on said connection shaft and further wherein the locking pin may exit via said second opening on a second side of the trailer coupler after passing through said second opening on said latch.  
         [0020]     In an embodiment, the trailer coupler device has a latch that may not be accidentally or intentionally opened without first removing the locking pin from the first and second openings on the trailer coupler, the first and second openings on the latch and the opening on the connection shaft.  
         [0021]     In an embodiment of the present invention, a trailer coupler device for attaching to the hitch ball of a tow vehicle is provided. The trailer coupler has a front portion of the trailer coupler having a latch attached thereto wherein said latch is connected to a connection shaft. Moreover, the trailer coupler has a grasping means for grasping the hitch ball of the towing vehicle and a ball receiving cavity positioned within the trailer coupler wherein said hitch ball of said towing vehicle is received in said ball receiving cavity of the trailer coupler. Additionally, the trailer coupler has a spring housing having a spring positioned thereon wherein said spring acts in response to the movement of the latch and further wherein said coupler has a locking pin for securing the latch when the latch is in the engaged position.  
         [0022]     In an embodiment, the trailer coupler device has a grasping means that is a slidable abutment that moves from a non-inclusive position within the ball receiving cavity when the latch is in the open position, to an inclusive position within the ball receiving cavity when the latch is in the closed position.  
         [0023]     In an embodiment, the trailer coupler device has a spring housing that with a spring positioned thereon wherein said spring is compressed when said latch is in a disengaged or open position and further wherein said spring is released from a compressed state when the latch is in an engaged or closed position.  
         [0024]     In an embodiment, the trailer coupler device has a trailer coupler having a first opening and a second opening thereon; said latch having a first opening and a second opening thereon and said trailer coupler having a connection shaft wherein said connection shaft attaches said latch to said grasping means wherein said connection shaft has an opening thereon and the locking pin passes through the first opening on a first side of the trailer coupler, passes through the first opening on said latch and said opening on said connection shaft and further wherein said locking pin may exit via said second opening on a second side of the trailer coupler after passing through said second opening on said latch.  
         [0025]     In an embodiment of the present invention, a method for using a trailer coupler device is provided. The method comprises the steps of: providing a trailer coupler having a front portion adapted to accept a hitch ball from a tow vehicle wherein said trailer coupler has a ball receiving cavity; integrating a latch portion onto said trailer coupler wherein said latch portion is connected to a connection shaft; connecting said connection shaft to a slidable grasping means wherein said grasping means secures the hitch ball of a tow vehicle within the ball receiving cavity; integrating a spring housing within the trailer coupler to allow slidable movement of the grasping means; and providing a locking pin to secure the latch in the engaged or closed position.  
         [0026]     In an embodiment, the method further comprises the step of: providing a spring within the spring housing wherein said spring is compressed when said latch is in the open or disengaged position.  
         [0027]     In an embodiment, the method further comprises the step of: placing the hitch ball of the tow vehicle into the ball receiving cavity of the trailer coupler.  
         [0028]     In an embodiment, the method further comprises the step of: fastening the latch into a closed or engaged position after insertion of the hitch ball into the ball receiving cavity of the trailer coupler wherein said closing of the latch causes the connection shaft to slide downward which causes said spring housing to act on a spring which decompresses and moves said grasping means into a position to secure the hitch ball of the tow vehicle.  
         [0029]     In an embodiment, the method further comprises the step of: securing the latch in the closed or engaged position and ensuring that said latch does not disengage causing disengagement of the grasping means from the hitch ball wherein a locking pin is used to secondarily lock the latch into the closed position wherein said trailer coupler has a first opening and a second opening thereon; said latch having a first opening and a second opening thereon and said trailer coupler having a connection shaft wherein said connection shaft attaches said latch to said grasping means wherein said connection shaft has an opening thereon; said locking pin passing through said first opening on a first side of the trailer coupler, passes through said first opening on said latch and said opening on said connection shaft and further wherein said locking pin may exit via said second opening on a second side of the trailer coupler after passing through said second opening on said latch.  
         [0030]     In an embodiment, the method further comprises the step of: unfastening the latch into an open or disengaged position wherein said opening of the latch causes the connection shaft to slide upward which in turn causes said spring housing to act on a spring which compresses and moves said grasping means into a position away from the hitch ball of the tow vehicle which in turn allows for release of the hitch ball of the tow vehicle from the trailer coupler.  
         [0031]     It is, therefore, an object of the present invention to provide a trailer coupler apparatus and a method of using the same.  
         [0032]     Another object of the present invention is to provide a trailer coupler apparatus and a method for using the same, for use by towing vehicles.  
         [0033]     Still another object of the present invention is to provide trailer coupler apparatus and a method for using the same wherein the trailer coupler may be used to attach a tow vehicle to a trailer.  
         [0034]     Yet another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may be used to tow a boat, a vehicle, a container or any other device necessitating towing.  
         [0035]     Still another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler has a streamlined aerodynamic design.  
         [0036]     Another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler may be a one-piece apparatus.  
         [0037]     Still another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler may be a two-piece apparatus.  
         [0038]     A further object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler may be streamlined and un-intrusive.  
         [0039]     Yet another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may endure high loads.  
         [0040]     Another object of the present invention is to provide trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may be easily manufactured and marketed.  
         [0041]     Yet another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may be more durable and reliable than existing known prior art.  
         [0042]     Another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may have a grasping means thereon to facilitate easier connection of the trailer coupler apparatus to the ball of a tow vehicle.  
         [0043]     Still another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may have a latching means that activates a spring loaded housing that fastens the trailer coupler to the ball of a tow vehicle.  
         [0044]     An object of the present invention is to provide a unique trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may connect to a plurality of hitch ball types and sizes known in the towing industry.  
         [0045]     A further object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler may have a latching apparatus that has a connection shaft that may connect to the grasping means wherein the connection shaft has an opening thereon.  
         [0046]     Still another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler may have a latching apparatus that has a connection shaft that may connect the latch to the grasping means wherein the connection shaft has an opening thereon which when the latch is closed may be used to secure the latch and the trailer coupler from accidental disengagement.  
         [0047]     Still another object of the present invention is to provide a trailer coupler apparatus and a method of using the same wherein the trailer coupler may have a spring housing having a spring and a connection shaft which may be connected to the latch at a first end and may connect to the grasping means on a second end.  
         [0048]     Yet another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the new and improved trailer coupler apparatus may prevent accidental disengagement of the device from the tow vehicle.  
         [0049]     Another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may have a secondary locking means to secure the trailer coupler to the tow vehicle.  
         [0050]     Yet another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may have a second locking means wherein the secondary locking means may be a manually inserted locking pin.  
         [0051]     Yet another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may have a secondary locking means wherein the secondary locking means may be a manually inserted locking pin wherein the locking pin may be inserted into the trailer coupler apparatus to minimize accidental disengagement of the trailer coupler from the tow vehicle.  
         [0052]     Another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may have a secondary locking means wherein the secondary locking means may be inserted into the trailer coupler and may penetrate through an opening on the latch and exit on the opposing side of the trailer coupler.  
         [0053]     An object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may have a secondary locking means wherein the secondary locking means may secure the latch such that the latch may not be accidentally opened without first removing the secondary locking means.  
         [0054]     Yet another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may have a secondary locking means wherein the secondary locking means is inserted into an opening on the connection shaft of the trailer coupler wherein the connection shaft may be directly connected to the latch and the latch may not be accidentally disengaged without first removing the secondary locking means from the connection shaft of the coupler.  
         [0055]     Another object of the present invention is to provide a trailer coupler apparatus and a method of using the same wherein the trailer coupler may have a latch portion wherein a locking pin is used to secure the latch portion against accidental opening and/or unsecuring of the trailer coupler from the tow vehicle.  
         [0056]     An object of the present invention is to provide a trailer coupler apparatus and a method of using the same wherein the trailer coupler may have a latch portion wherein a locking pin is used to secure the latch portion wherein the latch may not open without first removing the locking pin.  
         [0057]     Another object of the present invention is to provide a trailer coupler apparatus and a method of using the same wherein the locking pin may have a protruding retractable ball on a distal end wherein the retractable ball may be larger than the opening in the trailer coupler such that the retractable ball may prevent accidental release of the locking pin from the trailer coupler  
         [0058]     Yet another object of the present invention is to provide a trailer coupler and a method of using the same wherein the trailer coupler may have a secondary locking means wherein the locking means may be constructed of high strength metal.  
         [0059]     Still another object of the present invention is to provide a trailer coupler and a method of using the same wherein the trailer coupler may have a secondary locking means wherein the locking means may be constructed of a high strength material.  
         [0060]     A further object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may be constructed from a high strength metal.  
         [0061]     Another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may be made of a high strength material.  
         [0062]     A further object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler may decrease the chance of accidental opening of the latch by a user.  
         [0063]     Yet another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler is efficient and easy to engage on a towing vehicle.  
         [0064]     An object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the outside portion of the trailer coupler is flush and streamlined.  
         [0065]     Another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the outside portion of the trailer coupler is flush and streamlined wherein all sides are smooth and even without protrusions.  
         [0066]     Still another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler may have a plurality of locking pins to secure the latch during use.  
         [0067]     Another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler may have a single locking pin to secure the latch during use.  
         [0068]     An object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the device may have a locking pin that interrupts the accidental release of the latch portion by being inserted into the latch portion.  
         [0069]     Yet another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may have a locking pin that interrupts the accidental release of the latch portion by being inserted just above the latch portion such that the latch portion&#39;s upward movement is blocked by the locking pin.  
         [0070]     Another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may be used on standard type hitch balls attached to the rear of a vehicle.  
         [0071]     A further object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may use a grasping means to secure the trailer coupler to the hitch ball of a tow vehicle wherein said grasping means is connected to the spring housing which contains a spring thereon.  
         [0072]     Still another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may have a spring housing with a spring contained thereon wherein the spring forces the latch closed.  
         [0073]     Another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may have a spring housing and a spring positioned thereon wherein the latch may have a flat radius at the distal end of the latch which engages with the top end of the ball receiving cavity and is flush with the top end to keep the latch in the open position and the spring in the compressed position.  
         [0074]     Yet another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may have a spring housing and a spring positioned thereon wherein the latch is secured in a closed position by the spring when the spring is decompressed wherein the spring forces the latch closed.  
         [0075]     Yet another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may use a hydraulic mechanism to secure the trailer coupler to the hitch ball of the tow vehicle.  
         [0076]     Another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may use an electronic mechanism to secure the trailer coupler to the hitch ball of the tow vehicle.  
         [0077]     An object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may use a pneumatic mechanism to secure the trailer coupler to the hitch ball of the tow vehicle.  
         [0078]     Still another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may be manufactured with a plurality of load capacities depending on the strength requirements of the article to be towed.  
         [0079]     Still another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus strength may be manufactured in a plurality of sizes depending on the requirements of the article to be towed, the vehicle used to tow and the strength necessary.  
         [0080]     Yet another object of the present invention is to provide a trailer coupler apparatus and a method for using the same wherein the trailer coupler apparatus may be easily secured and unsecured to the standard hitch ball attached to the rear of a vehicle.  
         [0081]     These and other objects of the invention will become more clear when one reads the following specification, taken together with the drawings that are attached hereto. The scope of protection sought by the inventors may be gleaned from a fair reading of the Claims that conclude this specification.  
         [0082]     Additional features and objects of the present invention are described in, and will be apparent from, the detailed description of the presently preferred embodiments and from the drawings. 
     
    
     DESCRIPTION OF THE DRAWINGS  
       [0083]      FIG. 1  is a perspective view of a trailer coupler in an embodiment of the invention;  
         [0084]      FIG. 2  is a perspective view of the front portion of a trailer coupler having an open latch in an embodiment of the invention;  
         [0085]      FIG. 3  is a perspective view of the front portion of a trailer coupler with a cutaway of the latch showing a closed latch and the path of locking pin inserted into the coupler in an embodiment of the invention;  
         [0086]      FIG. 4  is a top view of the front portion of the trailer coupler showing the inserted pin in an embodiment of the present invention;  
         [0087]      FIG. 5  is a side view of the front portion of the trailer coupler showing the inserted locking pin in an embodiment of the present invention;  
         [0088]      FIG. 6  illustrates a side view of the trailer coupler in an embodiment of the present invention;  
         [0089]      FIG. 7  is a front view of the trailer coupler in an embodiment of the present invention;  
         [0090]      FIG. 8  is a cross sectional side view of the interior of the trailer coupler with the latch in the disengaged or open position in an embodiment of the present invention; and  
         [0091]      FIG. 9  is a cross sectional side view of the interior of the trailer coupler with the latch in the engaged or closed position in an embodiment of the present invention. 
     
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT  
       [0092]     Turning now to the drawings wherein elements are identified by numbers and like elements are identified by like numbers throughout the  8  figures, the invention is depicted in  FIG. 1  and shows a trailer coupler apparatus  1  for allowing for attachment to a hitch ball of a tow vehicle (not shown). In a preferred embodiment of the present invention, the trailer coupler apparatus  1  may have a first side  3 , a second side  5 , a third side  7  and a fourth side  9 . It should be understood that although a preferred embodiment of the present invention illustrates a four sided object, the invention is in no way limited to a trailer coupler  1  having four sides and being in a rectangular shape. On the contrary, the invention includes inter alia, trailer coupler  1  that may be manufactured and used in a plurality of different shapes and sizes to accommodate various strength and towing applications. In a preferred embodiment, the trailer coupler application is for a standard hitch ball  17 .  
         [0093]     As illustrated in  FIG. 1 , the trailer coupler apparatus  1  may be constructed of two pieces, a first inner coupler portion  11 , and a cover portion  13  that may cover the interior elements of the inner coupler portion  11 . The cover portion  13  may be connected to the inner coupler portion  11  by a bolt  15  that secures the inner coupler portion  11  to the cover portion  13 . In an embodiment, the cover portion  13  may be welded, pinned, or affixed by another means of connection to the inner coupler portion  11 . The bolt  15  may be removably attached to the cover portion  13  and the inner coupler portion  11 , such that if a problem arises inside the cover portion  13  or the inner coupler portion  11 , the bolt  15  may be removed and the cover portion  13  may be disassociated from the inner coupler portion  11  to decipher any internal problems. In an embodiment, any releasable attachment means may be used to attach the inner coupler portion  11  to the cover portion  13 . In another embodiment of the present invention, the trailer coupler  1  may be a single piece construction such that no cover portion  15  is necessary.  FIGS. 1 and 8  also illustrate the trailer coupler having a ball receiving cavity  21  formed therein by a stationary and movable ball grip member. The ball receiving cavity  21  may be of sufficient size to accommodate a standard hitch ball  17  usually found on the rear of a towing vehicle (not shown). In an embodiment, the ball receiving cavity  21  may be of any size to accommodate a plurality of different hitch balls of differing sizes. Moreover, a grasping means  25  may protrude from a non-inclusive position  27  into an inclusive position  29  to secure about the hitch ball  17  as illustrated in  FIGS. 8 and 9 . The grasping means  25  may protrude from the non-inclusive position  27  to the inclusive position  29  when a latch  31  is engaged into a closed position as illustrated in  FIG. 1  and  FIG. 3 . The latch  31  may be connected to a connection shaft  47  that controls the grasping means  25 . When the latch  31  is in an open or disengaged position as illustrated in  FIG. 2 , the connection shaft  47  by position of the latch  31  causes the grasping means  25  to move from an inclusive position  29  within the ball receiving cavity  21  to a non-inclusive position  27  wherein when the grasping means  25  is in a non-inclusive position  27 , the trailer coupler ( 1 ) may be disassociated from the hitch ball  17  of a tow vehicle. (Not shown.)  
         [0094]     However, when the latch  31  of the trailer coupler  1  is in the closed position, the force on the connection shaft  47  by the position of the latch  31  causes the grasping means  25  to be in an inclusive position  29  whereby the grasping means  25  in conjunction with the ball receiving cavity  21  restrict the disengagement of the hitch ball  17  from the trailer coupler  1 .  
         [0095]      FIG. 2  illustrates a perspective view of the front portion of the trailer coupler  1  in an embodiment of the present invention. The front portion of the trailer coupler  1  may have a latch  31  to facilitate opening and closing of the grasping means  25  of within the ball receiving cavity  21 . When the latch  31  is in the disengaged or open position, the grasping means  25  may be disengaged from the hitch ball  17  of the tow vehicle. However, when the latch  31  is in the engaged and/or closed position as shown in  FIG. 3 , the grasping means  25  may be engaged about the hitch ball  17  of the tow vehicle to secure the trailer coupler  1  to the hitch ball  17  of the tow vehicle. In an embodiment, the grasping means  25  may be a slidable abutment which may be spring loaded and attachable connected to the latch  31  via a connection shaft  47 . The connection rod is attached to the latch  31  which when engaged, moves the grasping means  25  from a position non-inclusive position within the ball receiving cavity to an inclusive position within the ball receiving cavity  21 .  
         [0096]      FIG. 2  further illustrates the latch  31  which may have a stability rod  45  which may be attached to a connection shaft  47 . The connection shaft  47  may be connected to the latch  31  by a stability rod  45  that may be integrated into the latch  31 . However, the connection shaft  47  may be directly connected to the latch  31  without the need for a stability rod  45 . In a preferred embodiment of the present invention, the connection shaft  47  may have an opening  49  thereon. The opening  49  may correlate to a first opening  53  on the latch  31  and to a second opening  51  on the latch  31 . Moreover, the opening  49  may correlate to a first opening  55  on the trailer coupler  1  and a corresponding second opening  57  on the trailer coupler  1 . In a preferred embodiment, a locking pin  61  may be used to secure the latch and the connected grasping means  25  in a fixed and safe position after engagement of the grasping means  25  about the hitch ball  17  of the tow vehicle. In an embodiment, the locking pin  61  may be inserted into the first opening  55  on the trailer coupler, having a corresponding first opening  51  on the latch  31 . The locking pin  61  may then penetrate the opening  49  on the connection shaft  47 , travel through the opening  49  of the connection shaft  47  and through the second opening  51  of the latch  31  and the corresponding second opening  57  of the trailer coupler  1 . However, the locking pin  61  may not pass through the connection shaft  47  opening  49 , unless the latch  31  is in the closed and/or engaged position. This ensures that the latch  31  is properly closed and the grasping means  25  is in an engaged position about the hitch ball  17  of the tow vehicle. Moreover, the locking pin  61  penetrating the connection shaft  47  of the trailer coupler  1  may ensure that the latch  31  is not accidentally disengaged and/or opened, and the corresponding grasping means  25  is not disengaged from the hitch ball  17 . In an embodiment, the latch  31  may not be released and/or opened until the locking pin  61  has been removed from the trailer coupler  1 . The locking pin  61  may have a retractable roller ball  63  on its end to keep the locking pin  61  secured about the second opening  57  of the trailer coupler  1 . Moreover, the locking pin  61  may also have a tether  67  that secures the locking pin  61  to the trailer coupler  1  when the locking pin  61  is not in use.  
         [0097]      FIG. 3  further illustrates the latch  31  of the trailer coupler  1  in its secured position. The latch  31  may be closed to lay flush with the top portion of the trailer coupler  1 . The latch may also have a lever  69  thereon to facilitate opening and closing of the latch  31 . In a preferred embodiment of the present invention, the lever  69  may be manually manipulated to facilitate opening and closing of the latch  31 . However, in another embodiment, the lever  69  may be remotely operated.  
         [0098]      FIG. 3  further illustrates a cut out view of the internal portion of the latch  31  illustrating the stability rod  45  and the connection shaft  47 . Moreover, as described above, the locking pin  61  may be inserted into the first opening  55  on the trailer coupler  1  which corresponds to the opening  49  on the connection shaft  47  such that when fully engaged, the locking pin  61  secures the latch  31  in a closed and secured position. Even if the lever  69  is manually manipulated or is in some other way engaged to open, the locking pin  61  may prevent the latch  31  from disengaging or opening until the locking pin  61  is withdrawn from the trailer coupler  1 . Additionally, in a preferred embodiment of the present invention, the locking pin may not be fully inserted into the trailer coupler including penetration of the connection shaft  47  opening  49  and the first and second openings  55 ,  57  of the trailer coupler  1  without the latch  31  being in a fully engaged position. This may ensure that the latch  31  is properly closed and the grasping means  25  is secured about the hitch ball  17  before a user improperly believes that the latch  31  and grasping means  25  is secure and inserts the locking pin  61  without properly securing the hitch ball  17  to the trailer coupler  1 .  
         [0099]      FIGS. 4-6  illustrate top and side views of the trailer coupler  1  wherein the latch  31  is in the secured and closed position and the locking pin  61  has been secured there through to lock the trailer coupler  1  such that the grasping means  25  does not disengage from the hitch ball  17  of a towing vehicle.  FIG. 5  also illustrates a triangular opening  71  in the side portion of the trailer coupler  1 . The triangular opening  71  may be used to additionally hang the loose end of the safety chains/cables to keep them off the ground and additionally secure the trailer coupler  1  to a tow vehicle. Many hitch mechanisms have a chain attached thereto and a second end of the chain has a hook attached. The hook may then be secured to the trailer coupler by hooking into the triangular opening  71  on the side of the trailer coupler  1  for additional security, such that accidental disengagement of the trailer coupler  1  from the hitch ball  17  occurs, the chain may prevent the article being towed from being completely left behind. Moreover, it may prevent hazardous situations wherein the article being towed is completely disengaged from the tow vehicle and presents a danger to any following vehicles.  
         [0100]      FIG. 8  illustrates a cross-section side view of the trailer coupler  1  in an embodiment of the present invention. As previously mentioned, the trailer coupler  1  may have a ball receiving cavity  21  for engagement of a hitch ball  17  of a tow vehicle. The hitch ball  17  may fit into the ball receiving cavity  21  when the grasping means  25  is in a non-inclusive position within the ball receiving cavity  21 . When the hitch ball  17  has been fully inserted into the ball receiving cavity  21 , the grasping means  25  may be engaged by closing the latch  31  wherein the grasping means  25  is moved into the inclusive position within the ball receiving cavity  21 . After the grasping means  25  has been moved into the inclusive position within the ball receiving cavity  21 , the locking pin  61  may be inserted to secure that the grasping means is fully engaged and the hitch ball  17  is not accidentally disengaged from the trailer coupler  1 .  
         [0101]      FIG. 8  illustrates the interior of the trailer coupler  1 . As illustrated, the trailer coupler  1  may have a latch  31  which is connected to a spring housing  75  by a connection shaft  47 . The connection shaft  47  connects the latch  31  to the grasping means  25  which has a spring  77  mounted thereon. The spring  77  retracts and engages based on the position of the latch  31 . The spring  77  may cause the latch  31  to be in a closed position by completely retracting into a state wherein the spring  77  is not being forced to compress. When significant pressure is put on the latch  31 , it may cause compression of the spring  77  to open the latch  31  whereby the same force and/or pressure on the spring causes movement of the grasping means  25  in relation to the hitch ball  17 . Moreover, attached to the connection shaft  47  is the grasping means  25 . The grasping means  25  may be attached by a connecting pin  81  to the connection shaft  47 . Additionally,  FIG. 8  illustrates the latch  31  in the disengaged or open position wherein the spring  77  is compressed in association to the position of the latch  31  and the grasping means  25  is in the non-inclusive position in relation to the hitch ball  17 . Moreover, a top plate  83  may be positioned on the top portion of the ball receiving cavity  21  wherein an associated planar portion  89  of the latch  31  may rest on the top plate  83  to allow for the latch  31  to remain open without the need for additional pressure and/or force when the latch  31  is in the disengaged or open position. Additionally the latch  31  may have curved portion  91  that may provide for efficient closing of the latch  31  when sufficient pressure and/or force is placed on the latch  31  which in turn may remove the planar portion  89  of the latch  31  from resting on the top plate  83  of the ball receiving cavity  21 .  FIG. 8  also illustrates an opening  53  in the latch  31 , the opening  49  in the connection shaft  47  and the opening  55  in the trailer coupler  1  body when the latch  31  is in the disengaged or open configuration. As can be seen in the figures, when the latch  31  is in the open configuration, the opening  49  on the connection shaft  47  and the opening  55  in the trailer coupler  1  are misaligned and a locking pin  61  may not fit through the combination of the openings  49 ,  55 .  
         [0102]      FIG. 9  illustrates a cross sectional view of the interior of the trailer coupler  1  wherein the latch  31  is in a closed position. As illustrated, when the latch  31  is closed, the connection shaft  47  connected to the latch  31  causes the spring housing  75  to act on the spring  77  wherein the spring  77  is expanded. The expansion of the spring  77  causes the connected grasping means  25  to move from a non-inclusive position relative to the hitch ball  17  within the ball receiving cavity  21  to an inclusive position in a position adjacent the hitch ball  17  of the tow vehicle. Moreover,  FIG. 9  illustrates the opening on the coupler  1  wherein the locking pin  61  is placed to lock the latch  31  in position such that the latch  31  may not be accidentally opened and/or disengaged causing the spring to compress and the grasping means  25  to be prematurely disengaged from the hitch ball  17 .  
         [0103]     While the invention has been described with reference to a particular embodiment thereof, those skilled in the art will be able to make various modifications to the described embodiment of the invention without departing from the true spirit and scope thereof. It is intended that all combinations of elements and steps which perform substantially the same function in substantially the same way to achieve substantially the same result are within the scope of this invention.