System and apparatus for opening cylinder locks

A lock opening method and mechanism for opening locks in minimum time while requiring very little skill on the part of the operator. The mechanism includes an adapter assembly, a tension arm and an oscillator unit. The assembly asserts rotary force to a lock cylindrical plug. This causes the lock pins to release and allowing the lock to be opened.

BACKGROUND OF THE INVENTION 
This invention relates to a method of opening a wide variety of modern 
locks in common use and a lock opening mechanism embodying the method. 
More specifically, this invention relates to a new and improved method and 
apparatus to facilitate the opening of a variety of security locks 
including disc tumbler, wafer tumbler and pin tumbler cylinder type locks 
when the key has either been lost or misplaced. 
While it is the endeavor of lock craftsman to design pick proof locking 
devices, it is known among experts of the lock making industry that a key 
operated lock mechanism is subject to picking. However, it is not a simple 
task for the lock artist to design and construct an instrument to pick a 
real security lock. As a result of extensive laboratory research many 
present day locks, while not pickproof are pick resistant and will 
stubbornly resist attempts made to pick it. Consequently, lock picking 
itself has demanded a great deal of expert knowledge, skill and a 
considerable amount of study. Most typically, it is known how to pick pin 
tumbler cylinder locks by means of a device carrying a pick needle member 
with a trigger operated means for setting the needle, inserted into the 
keyway, into vibration in order to apply vibrations to the tumblers and 
counterpins. During this operation, a rotary force is applied to the lock 
cylinder. It has been found in practice that opening a lock with such a 
device requires skill and an inordinately large amount of time. 
U.S. Pat. No. 4,156,375 to Crasnianski disclosed a lock pick mechanism 
comprising a motor driven cam in order to impart a shock motion to the 
pick needle member which is inserted into the lock keyway. The pick needle 
of the Crasnianski device is arranged on a member to be struck repeatedly 
by the end of a hammer to impart a shock or pulse to the pick needle. U.S. 
Pat. No. 3,264,908 to Moore also disclosed a vibratory lock device 
comprising an electro-magnetic motor which imparts a vibratory motion to 
the pick needle so that the lock may be opened by means of a turning 
wrench. U.S. Pat. No. 2,565,254 to Miskill discloses a power actuated lock 
pick which operates in a manner very similar to that disclosed in the 
Moore patent. The Miskill reference disclosed the use of continuous 
vibrational motion which is imparted to a lock pick blade. Miskill further 
disclosed a tension member which is adapted to be inserted into the keyway 
to a lock beneath the lock pick in order to hold the lock pick in the 
upper part of the keyway in a position for impact engagement with the lock 
tumbler pins. 
SUMMARY OF THE INVENTION 
It is an object of this invention to provide an improved method and 
apparatus to be used by the initiated lock craftsmen and law enforcement 
officials as an instrument for opening all standard makes of pin and wafer 
cylinder locks in a minimum of time. Many locks can be opened in a matter 
of seconds. It is also an object of the invention to provide a lock 
opening mechanism which can be conveniently, economically and rapidly 
assembled. Another object of this invention is to provide mechanism for 
enabling the lockmaster and law enforcement officials to open high grade 
locks while requiring very little, if any, skill on the part of the 
operator. 
Still another object of this invention is to provide an oscillating 
mechanism which operates to rotate lock cylinders back and forth 
repeatedly in a very rapid movement to facilitate their opening. 
Yet another object of this invention is to provide a lock pick mechanism to 
facilitate rapid opening of locks by means of an oscillating implement 
which imparts a rotary action to the lock cylinder, a spring arm or 
tension member and an adapter assembly. The adapter assembly is provided 
with a clamp and base constructed to be inserted into the keyway of the 
particular type lock to be opened. The adapter base is designed to provide 
a space between the base and the lock tumbler pins such that the operator 
can easily insert a lock pick into the keyway of the lock. 
The foregoing objectives and other objectives are accomplished by using an 
oscillator unit to rotate the cylinder of a lock in a back and forth 
motion. The motion is transmitted to the cylinder through the adapter 
assembly base. The adapter base, which comes in different shapes depending 
upon the particular lock to be opened, is detachably mounted to the 
adapter clamp. Each adpater base is provided with two openings. One of the 
openings in the base is to facilitate a fastener screw. The adapter clamp 
is provided with a cylindrical stud positioned to fit into the other base 
opening. This hole and stud alignment resists twisting of the adapter 
clamp in relation to the adapter base. The adapter clamp is provided with 
a treaded hole to receive a standard screw-fastener means for holding the 
adapter base and clamp together in a snug or tight fit. The adapter clamp 
is provided with four slits or openings arranged to facilitate the 
insertion of the end of the spring steel arm through one of the slits. The 
adapter clamp is further provided with two grooves or recesses arranged at 
a right angle to each other to permit the end of the spring steel arm 
member to be passed through the slit to seat with one of the recesses such 
that the edges of the adapter clamp and base will be flush together when 
joined by the screw-fastener means. The two grooves are so arranged, and 
the slits are so positioned such that the tension or spring steel arm 
member can be turned in various positions at 90 degree intervals 
throughout 360 degrees. This allows the operator to position the 
oscillator unit in various positions to obtain the most optimum position 
to facilitate the opening of a lock. The free end of the tension or spring 
steel arm member is designed to be inserted into one of two slots or 
openings carried on the end of the oscillator unit rod. The slots are 
arranged at a right angle to each other to allow the spring steel arm 
member to be turned to obtain the most optimum position for the operator. 
The spring member is secured in the slot with a set screw provided on end 
of the oscillating rod. 
Once the spring arm is secured between the adapter assembly and the 
oscillator unit, the lock opening device is completely assembled and ready 
for use. In one embodiment the adapter base of the adapter assembly is 
inserted in the lower or bottom portion of a lock cylinder plug of a 
particular lock to be opened. The adapter base selected for this 
particular lock fits snug in the keyway, thereby avoiding or reducing any 
lost motion between the spring arm member and the lock cylinder plug. This 
snug fit permits more efficient application of the oscillation force to 
the lock cylinder plug and results in less wear-and-tear damage to the 
adapter base. 
It would be impractical to employ an ordinary key as an adapter base by 
cutting off its upper portion for at least two reasons. First, there would 
be so much play between the key base and the lock cylinder plug that a 
great deal of the oscillation force would be lost. Second, and more 
importantly, the key base would probably break after a few applications or 
within a short period of time. 
The oscillator unit is pushed in the direction that you wish the lock 
cylinder to turn. This bends the adapter spring arm member slightly and 
puts a little pressure on the adapter assembly and the lock cylinder plug. 
When the lock opening mechanism is turned on with the switch. The 
oscillator unit rod moves back and forth causing the spring steel arm 
member to move back and forth. This causes the adaper assembly to move the 
lock cylinder plug back and forth rapidly. Thus, the adapter assembly 
asserts repeatedly, a rotary motion on the lock cylinder plug. Quick 
opening of the lock is made possible by inserting a lock pick to the rear 
of the lock cylinder plug and picking each pin up until all the pins have 
been picked upward. While holding this vibrating tension on the lock 
cylinder plug with the lock opening device, the operator gently turns the 
lock cylinder plug with the pick in the opposite direction from which the 
lock opening device is applying the most of its pressure. The upper pins 
will then vibrate down to the sheer line and the lock opening mechniasm 
will turn the cylinder open before the tumbler pins can pass the sheer 
line of the lock cylinder. The lock opening device oscillates its shaft 
very fast (approx. 3500 C.P.M.) and this causes the lock cylinder plug to 
grip the lock tumber pins many times and release them many times each 
minute. The tumbler pins are alternatively, in a stationary state and a 
movable state many times a minute. Therefore, they can be manipulated by 
the operator to open the lock with little difficulty. The lock opening 
device will operate when the tumbler pins are raked, picked or even pushed 
up all at once. Thus, the operator has a choice of ways to use the device. 
The oscillator unit is driven by a small electric motor which has a current 
rating of less than four amps. This motor can be a standard motor, a two 
speed motor, a rechargeable power pack type motor or a variable speed 
motor. Also, the stroke of the oscillator unit rod can be changed by 
changing the position of the stud mounted on the driver gear and which 
carries a bushing that rides in a slot or bracket carried on the 
oscillator rod. The motor drives a small gear on the end of its shaft. 
This small gear drives a larger gear called the driver gear. This gives 
the motor more driving power. The driver gear has a small stud and bushing 
on it which fits into a slot on the oscillator shaft. Each time the motor 
makes a complete revolution the oscillator rod makes a complete cycle. As 
the driver gear turns round and round, the oscillator rod goes in and out. 
As the oscillator rod goes in and out, the spring steel arm or tension 
member asserts repeated the back and forth rotary pressure to the adapter 
assembly and lock cylinder plug. Also, some of the vibration from the 
oscillating spring steel arm member is directed to the lock tumbler pins 
causing the lock to cleave at the sheer line the tension of the lock 
opening device will cause the lock to open. 
The lock opening device of this invention varies from the prior art in 
several important respects. In the past, instruments were made to strike 
the lock pins and force them up into the lock case. This damages the pins 
making them out of round and scared. They are left in a condition which is 
not proper for the best lock operation. In accordance with this invention, 
the adapter assembly base does not strike the pins in the lock. The base 
fits tight in the lock core, and therefore, it eliminates any undesired 
play between the adapter assembly and the lock core. To simply cut the top 
off of a key and use the bottom portion would not be feasible because the 
difference in tolerance would be so great that the key would soon break 
off. The adapter assembly of this invention fits tight, therefore, any 
play is removed and the adapter assembly is not apt to break off. Also, in 
the absence of play the device can impart more back and forth force to the 
lock cylinder plug. The lock opening device moves the lock cylinder plug 
back and forth very rapidly causing the lock tumbler pins to be suspended 
when moved by the lock pick or even by a straightened paper clip. The lock 
opening device of this invention will work with any small piece of strong 
metal which is of a sufficient size to allow it to move the lock tumbler 
pins freely. The operator can also use any standard lock pick for this 
purpose. The top tumbler pins of a lock can be pushed above the sheer line 
of the lock of the operator and then allowed to work themselves down to 
the sheer line when the lock cylinder plug is gently turned back away from 
the main tension pressure of the lock opening device. In this way, the 
tumbler pins are slowed down from movement yet, they are free to move 
downward as desired by gently removing some of the oscillating tension 
pressure. Because of the many tumbler pins in a lock cylinder, with prior 
lock opening devices, it was very difficult to get all the pins in the 
proper place because as they were forced upward, the recoil from the lock 
springs forced them back downward very rapidly. It took much patience to 
get them all in the proper position to open the lock. With the lock 
opening device of this invention, the pins tend to stay where placed 
better, and this makes the job of opening a lock easier and faster. In 
addition, the pins will not be damages as they might when struck by hard 
hammer blows from such instruments as lock pick guns and electric driven 
picks. The lock opening device of this invention achieves its objectives 
by moving the lock plug back and forth very rapidly using a spring steel 
arm member attached to the adapter assembly on one end and the oscillator 
unit rod on the other end. As the rod moves in and out the spring steel 
arm moves the adapter assembly and the lock plug back and forth. The lock 
tumbler pins are free to be moved, yet they tend to be held in place long 
enough for the lock to be opened. In this process, lock opening device 
does not touch the tumbler pins of the lock with any of its parts. The 
adapter assembly is wedged into the bottom of the lock core and cannot 
touch the lock tumbler pins. The lock pick is the only instrument which 
actually comes into contact with the lock tumbler pins. Thus, manipulation 
of the pins by the operator can be done in a gentle way.

DESCRIPTION OF THE PREFERRED EMBODIMENT 
The invention herein is described and illustrated in a specific embodiment 
having specific components listed for carrying out the functions of the 
appartus. Nevertheless, the invention need not be thought of as being 
confined to such a specific showing and should be construed broadly within 
the scope of the claims. Any and all equivalent structures known to those 
skilled in the art can be substituted for specific appartus disclosed as 
long as the substituted apparatus achieves a similar function. It may be 
that systems other than lock opening systems have been, or will be 
invented wherein the apparatus described and claimed herein can be 
advantageously employed, and such other uses are intended to be 
encompassed in this invention as described and claimed herein. 
Reference is made to FIGS. 1, 2 and 3 in which various system components 
are illustrated. The lock opening mechanism, generally denoted 1, includes 
the adapter assembly 2, the spring steel arm or tension member 6 and the 
oscillator unit 7. The adapter assembly is comprised of three major 
components: the screw-fastener means 5 secures the assembly section 
together; the adapter clamp 4, which has a tapped or threaded hole 10a to 
receive the screw-fastener means 5; and the adapter base 3, which is form 
fitted and interchangeable depending upon the particular keyway of the 
lock to be opened. The adapter base 3 is designed to provide a different 
base finger 9 shape for the various types of lock keyways in common use. 
Each base finger 9 is designed and constructed such that the member does 
not come into contact with the lock tumbler pins of the lock being opened. 
The base finger 9 is also designed such that there is sufficient space 
between the base finger 9 and the lock tumbler pins to permit easy 
insertion of a lock pick. 
The adapter base 3 is provided with two holes or openings. The hole 10 is 
arranged to receive the screw-fastner 5 and opening 11 to receive the pin 
or steel 11a formed on the wall of the adapter clamp 4. The stud 11a 
extends into the opening 11 in the adapter basee 3. The adapter clamp 4 is 
held very close to the adapter base 3 by screw-fastner 5 to prevent 
relative twisting motion during use of the lock opening device. The 
adapter clamp 4 is provided with four slit openings 13a, 13b, 13c and 13d 
for insertion of one end 16 of the arm member 6 through the clamp into one 
of the grooves 14 or 15. When the end 16 of the arm 6 is placed through 
one of the slit openings 13a-d into either groove 14 or 15, the edges of 
the adapter base 3 and adapter clamp 4 will be flush together when secured 
together by the screw-fastener 5. The tension arm 6 can be selectively 
positioned in varous directions depending upon which of the slits 13a-d is 
selected for installation of end 16, and also which of the grooves 14 or 
15 is selected. Hence, this allows positioning the oscillator unit 7, 
carried in casing or housing 8, in a variety of positions to obtain the 
most optimum position for each application. The opposite end 17 of the 
tension member 6 is inserted into the opening or slot 34 in the 
oscillating rod 30, and is held secure by set screw 32. Once the ends 16 
and 17 of arm 6 are attached through a slit 13a-d into the adapter 
assembly and to the oscillator rod 30, the lock opening system 1 is 
completely assembled and ready for use. 
Referring now to FIGS. 4 through 8, the finger 9 of the adapter assembly 3 
is shown inserted into the bottom portion of the lock cylinder 20 and plug 
26. When the lock opening device is turned on, the oscillator unit rod 
moves the arm member 6 back and forth. This vibration force causes the 
adapter assembly 3, through base finger 9 to assert a rotary force on the 
lock cylinder plug 20. As shown in FIG. 5, lock pin 22 is inserted to the 
rear of the lock plug 26, and all of the lower lock tumbler pins 23 can 
easily be picked upward. Referring now to FIGS. 6-8, upper tumbler pins 24 
will vibrate down to the sheer line 25, and the lock opening device will 
turn the lock open before the tumbler pins 24 can pass sheer line 25, and 
as shown in FIG. 8. 
Referring now to FIGS. 9, 9a, 10 and 10a, the lock opening device is 
powered by a small electric motor 40 which has a switch 46 and a current 
rating of less than 4 amperes. Motor 40 can be a standard motor, a two 
speed motor, a variable speed motor, or even a rechargeable portable power 
pack type motor. The motor 40 drives gear 41 which drives a larger driver 
gear 42. Driver gear 42 has a stud 43 and bearing or bushing 44. The 
bushing 44 rides in a bracket or slot 45 contained on the oscillator rod 
30. The speed of the motor can be varied by changing or adjusting switch 
46. Also, the stroke of the oscillator rod 30 can be varied by changing 
the position of the stud 43, which is mounted on the driver gear 42 and 
which carries the bushing 44. Each time the motor makes a complete 
revolution the oscillator rod 30 also completes a cycle or revolution. As 
the driver gear 42 turns about its axis, the oscillator rod 30 moves back 
and forth or inward and outward. Since the rod 30 is attached to the arm 
member 6, as the rod 30 moves back and forth, the spring steel arm 6 
causes rotary and vibrational forces to be applied through the adapter 
assembly to a lock cylindrical plug 26. 
Referring to FIGS. 11 and 12, the lock opening mechanism includes a safety 
guard 50. The guard 50 comprises rods 51 and 52 and base plate 53. The 
guard 50 is mounted on the lock opening mechanism casing 8 to provide 
protection for the oscillator rod 30 which is driven back and forth by the 
driver gear 44. 
Other modifications to the above described invention will be apparent to 
those skilled in the art, and are intended to be incorporated herein.