Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7895865 | Cylinder lock assembly with a tailpiece rotationally coupled to the cylinder plug The present application relates to lock assemblies that provide a secondary coupling point, utilizing an anti-rotation pin or extended tailpiece leg or other method, which rotationally couples the tailpiece to the cylinder plug, thereby preventing rotation of the ta... | 03/01/2011 |
| 7305714 | Anti-theft device for computer apparatus and a method for protecting computer apparatus thereby An anti-theft device for a computer device, including a main body having at least one protrusion portion which protrudes from the computer device when the body is connected to the computer device, an acceleration sensor provided in the main body and configured to de... | 12/04/2007 |
| 7287485 | Temperature activated systems A shape memory material activated device of the present invention uses a shape memory material activator to create a path through a shell wall of the device. The path through the shell wall may release a substance contained in the shell or allow a substance to enter... | 10/30/2007 |
| 7204474 | High-pressure plug valve A plug valve has a valve body, a cage fitted within the valve body and a rotatable plug housed within a cylindrical cavity in the cage, for controlling fluid flow through the valve. The cage has first and second opposed flat side surfaces, each side surface has a po... | 04/17/2007 |
| 7194876 | Modified lock plug A lock plug comprising a top end having a key way etched out of a solid wall, the key way leading to an interior of the lock plug housing a locking mechanism; and, a break away wall bordering a cavity carved out from the solid wall on a side of the key way, the brea... | 03/27/2007 |
| 7174755 | Mounting structure of steering column locking device Disclosed herein is a mounting structure of a steering column locking device which makes it possible for the steering column locking device to be rotated upwards with respect to a steering column by an impact when part of a driver's body bumps against the steering c... | 02/13/2007 |
| 7082794 | Mortise lock A mortise lock includes a chassis mounted in a mounting hole of a door and an outside handle assembly mounted to a side of the chassis. The outside handle assembly includes an outside spindle having a first end partially received in the chassis and operably connecte... | 08/01/2006 |
| 7080531 | Two point latching system The present invention relates to a latch having a button pawl shaft for attaching two panels together at two different points. The shaft of the latch has bezels in which the shaft rotates connected to one of the panels. The shaft has pawls at both ends which engage ... | 07/25/2006 |
| 7048730 | Temperature activated systems A shape memory material activated device of the present invention uses a shape memory material activator to create a path through a shell wall of the device. The path through the shell wall may release a substance contained in the shell or allow a substance to enter... | 05/23/2006 |
| 7000956 | Last assembly and vehicle including such a latch assembly A latch assembly includes a latch bolt, a retaining member and an actuator. The latch bolt is moveable between a closed position at which it is capable of retaining a striker and an open position at which the striker is released. The retaining member is moveable bet... | 02/21/2006 |
| 6971322 | Protective enclosure Protective enclosure having at least one anti-pry apparatus. The at least one anti-pry apparatus prevents an unauthorized operator from prying open a door panel from at least one of its sides. ... | 12/06/2005 |
| 6883440 | Safe Safe 10 has a firmly secured door 60 and latching and locking mechanisms on the frame 30 rather than on door 60. Door opening side 160 includes fingers 66 with catches 68. A movable latch plate 72 includes a pl... | 04/26/2005 |
| 6880374 | Steering lock device In a steering lock device wherein engagement and disengagement of a lock pin to and from a steering shaft can be selected by the rotation of a rotor, the steering lock device comprises: interlocking structure provided between a cylinder body and a joint so that when... | 04/19/2005 |
| 6082153 | Anti-tampering device for use with spring-loaded electronically moved pin locking mechanisms in electronic locks and the like An anti-tamper locking assembly for locking a position of a block, such as a locking bolt in an electronic lock, electrically moves a pin to engage or dis-engage the block. When dis-engaged, the block can be moved and access or the like can be made. The p... | 07/04/2000 |
| 6032496 | Door lock arrangement for motor vehicles A door lock arrangement for motor vehicles with a closing cylinder arrangement (2) attached to outer sheet metal (1) of the body of a vehicle so as to be accessible from the outside and with a lock mechanism (5) attached in the body to be inaccessible fro... | 03/07/2000 |
| 5988712 | Insertable motor vehicle anti-theft device An anti-theft device is constituted by an elongated rod of a width less than the gap between a window glass pane and a facing inner edge of a window sill for an automobile door interior panel. A shield plate is fixed to and extends radially outward to one... | 11/23/1999 |
| 5942973 | Locking system for a security container A locking system for a security container includes a frame in cabinet form, a jamb formed on the frame, a movable locker plate which determines opening and closing of a door by overlapping with the jamb and which is formed on the door, a combination lock ... | 08/24/1999 |
| 5699687 | Firearm security device A firearm-securing device providing tamper resistance features which device includes a keyway that operates a threaded rod which, in turn, controls spring-loaded cams that obstruct a tubular area including a chamber, a barrel, and a muzzle of a firearm. T... | 12/23/1997 |
| 5632167 | Steering look apparatus When a key cylinder is caused to come off a body, a regulating lever moves. As a result of such movement, a block member moves to engage with an engagement groove of an engagement body, so that the rotation of a cam shaft can be blocked. In addition, a lo... | 05/27/1997 |
| 5488843 | Safety, insurance and alarm mechanical lock A safety, insurance and alarm mechanical lock contains an external lock portion, a multicylinder type lock cylinder portion, and a lock body portion engaging with the lock cylinder portion. The lock cylinder portion comprises a front part including an ext... | 02/06/1996 |
| 5343723 | Combination lock In accordance with one aspect of the invention, a kicker arm-pawl lock mechanism rotates a number one wheel of a combination lock a predetermined distance to require resetting each number of a combination during lock manipulation. A drive cam-travel arm a... | 09/06/1994 |
| 5297404 | Bolt for an inner cylinder lock The present invention is an improvement on an inner cylinder lock and more specifically, on the bolt thereof. The bolt engages an opening in the rear case of the inner cylinder lock. The improvement on the bolt prevents the bolt from moving in a lateral d... | 03/29/1994 |
| 5249831 | Security lock for safes and the like having inertial operated counterweight A lock having a counterweight connected through a lever to a spring-actuated lock bolt on a safe to balance out any inertial forces tending to move the bolt out of its locking position when the safe is struck a heavy blow. A latch forming a part of the lo... | 10/05/1993 |
| 5231935 | Vault door An improved vault door having a daylock and a relock mechanism is disclosed. The door is selectively locked and unlocked within a frame of the vault by operating a pair of combination locks mounted to the door front to slide a lock bar mounted to the rear... | 08/03/1993 |
| 5230230 | Lock operator for inactive magazine door locking bolt system A lock operator located between a backing plate and sliding cover includes pivot plate for activating and deactivating the main boltworks and a relocker, an overtravel stop assembly for sequestering the pivot plate to prevent relock, a spring braised knob... | 07/27/1993 |
| 5229747 | Tamperproof lock A pin tumbler lock barrel assembly is capable of preventing the lock from being operated by the use of a skeleton key or any other tool inserted into the key slot. The lock is comprised of an improved hollow lock casing having a key plug located therein a... | 07/20/1993 |
| 5209168 | Secure closure system for metal cabinet doors A security system for a metal cabinet door comprises a latch adapted to be locked by a lock operating the latching members of the door. These comprise upper and lower strip members each having a plurality of hooks each of which, when the door is closed an... | 05/11/1993 |
| 4961328 | Lock bit arresting cylinder lock The invention relates to a cylinder lock with a cylinder housing (1) and, rotatably mounted therein, a cylinder plug (2) comprising a key passage extending in its axial direction, with a lock bit (5) coupled to the cylinder plug and rotatably mounted in t... | 10/09/1990 |
| 4910980 | Door lock/unlock detector for use in theft prevention device for automobiles A door lock/unlock detector for use within a theft prevention device for an automobile includes a door lock cylinder having a key-actuator rotor rotatable between a lock position and an unlock position. A detector plate is mounted upon the key-actuator ro... | 03/27/1990 |
| 4737762 | Vehicle theft detector for detecting the pulling out of a lock A vehicle theft detector apparatus includes a key cylinder attached to a door or an opening/closing part, this cylinder having a built-in key switch which sends locked and unlocked signals to an alarm device and a locking device, the lead wires from this ... | 04/12/1988 |
| 4712393 | Method and device for permanently locking a movable member in a framework Method and device for permanently locking a movable member in a framework, such as locking a door of a safe in case of an attack, in which an explosive member sensitive to an outer action is detonated and deforms the movable member such as a door of the s... | 12/15/1987 |
| 4706577 | Safe door latch deformation actuated interlock A lockable enclosure is disclosed which may be installed at locations accessible to customers for vending merchandise, dispensing money or receiving deposits, and where a potential attacker would have only a limited period of time to break into the enclos... | 11/17/1987 |
| 4679415 | Locking mechanism for lightweight security cabinet A locking mechanism which includes a rack-and-pinion-type gearing arrangement positioned on the interior surface of a security cabinet door surface is disclosed. The pinion-type gear is made rotatable by a shaft affixed thereto which communicates with the... | 07/14/1987 |
| 4669287 | Rupturable lock assembly A lock assembly has a lock barrel which slides in a housing so that a finger at the end of the barrel can release a latch. The lock barrel is prevented from sliding when the barrel is locked, by engagement of the finger with a blocking plate, but the barr... | 06/02/1987 |
| 4648255 | Lock protecting device for high security safes A lock protecting device for high security safes uses two hardened-material plates between which ball bearings have been nested in an egg-crate fashion. The plates with the safe's lock works mounted thereon are mounted to the interior of the safe door in ... | 03/10/1987 |
| 4631935 | Security device against attack on a lock The present invention relates to a security device against attacks on a lock comprising a member mounted pivotally on a lock body and one end of which retains a finger constantly acted upon by a spring, whereas the other end of the member is provided with... | 12/30/1986 |
| 4595903 | Tamper resistant automotive anti-theft device Tamper-resistant features are provided for a vehicle hood-locking and ignition disabling apparatus which functions as an automotive anti-theft device. These tamper resistant features are responsive to efforts to defeat or by-pass the anti-theft device and... | 06/17/1986 |
| 4565994 | Detecting device for detecting the removal of a cylinder lock A device for detecting the removal of a cylinder lock used on cars, trunks, etc. when an unjust force is applied to the cylinder lock. The device also detects the locked and unlocked conditions of the cylinder lock. Magnets and magnetic sensor switches ar... | 01/21/1986 |
| 4562706 | Mechanical relocker for locking bolts A torsion spring longitudinally rotates a locking bolt when the bolt actung linkage is severed. A woodruff key or the like is upstanding from a surface of the bolt. When the linkage is undamaged, the key slides with the bolt through a slot on the lock fr... | 01/07/1986 |
| 4532785 | Combination lock An improved lock assembly having a plurality of peripherally gated tumbler wheels supported within a housing for rotation about a common axis. A peripherally gated control cam is mounted to the tumbler wheel axis to provide cam operated movement of a fenc... | 08/06/1985 |
