...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7287404 | Security device for a threaded element A security device for engaging an threaded element includes an inner body configured to engage the threaded element and an outer body operatively coupled to the inner body. A lock is configured to engage the outer body and is operable such that the outer body moves ... | 10/30/2007 |
| 7143783 | Fuel tank cap safety valve with splash control and overpressure release A fuel tank cap provides a safety valve mounted on a tubular vent stem for venting fluids from a fuel tank. The safety valve is adapted for engagement with the tubular vent stem so that the fluids may enter the safety valve. A pair of upper cavities communicate with... | 12/05/2006 |
| 6935527 | Locking filler cap A lockable filler cap assembly for fuel tanks and other fluid-holding containers. The assembly is readily adaptable to function as a normally operating non-locking filler cap and to function as a locked filler cap. The lockable filler cap assembly includes a cap hav... | 08/30/2005 |
| 6918275 | Manual internal release assembly for a vehicle decklid latch A combination key lock and latch assembly for a vehicle trunk lid having the key lock located separately and closely adjacent the latch assembly without requiring modification of an existing latch assembly. A sliding actuator is attached to an existing latch assembl... | 07/19/2005 |
| 6915365 | Mechanism for PCI I/O-initiated configuration cycles Methods and apparatus for inbound PCI configuration cycles are disclosed. By definition, PCI bridges block upstream progress of configuration cycles initiated by a PCI bus master on their secondary buses. In the described embodiments, a PCI bus master can execute a ... | 07/05/2005 |
| 6691732 | Hydrant security device The present invention provides a hydrant locking device to be used in conjunction with a fire hydrant having locking nuts which includes, a base arm having a first base arm portion and a second base arm portion. A top arm extends upwardly from the base ar... | 02/17/2004 |
| 6220064 | Fuel filler assembly for a vehicle A fuel filler assembly, in particular for a motor vehicle, having a filler, and a cap for closing a mouth of the filler and provided internally with a cylinder rotated by means of an operating key is disclosed. A reversible locking arrangement is provided... | 04/24/2001 |
| 5904057 | Lockable fuel cap A lockable fuel cap is provided including a closure member having a drive tooth and a removal hub. The hub includes a drive lug and moves between a lock position in which the drive lug is spaced-apart from the drive tooth and a release position in which t... | 05/18/1999 |
| 5697232 | Device for preventing unauthorized use of an engine The invention relates to a device (1) for preventing unauthorized use of an engine provided with a spark plug, from which the ignition cable has been removed and conditions have been provided which will enable the spark plug to be covered and therewith ma... | 12/16/1997 |
| 5649437 | Lockable cover for threaded spout A lockable cover and seal for a threaded nozzle or spout, such as a hose bib cock assembly having a passageway, an end face, an external threaded portion adjacent the end face, and anti-siphon valve in the passageway including a portion protruding outward... | 07/22/1997 |
| 5479799 | Key and bolt lock device The present invention provides for a key and bolt lock device. The key is constructed in a housing shell to be received by the head of the bolt. The key includes a power source, typically a battery, and a transmit coil which is capable of transmitting bot... | 01/02/1996 |
| 5467621 | Lockable closure for a fuel tank filler pipe The closure includes a base adapted to be screwed into a fuel tank filler pipe and having a fill opening normally closed by a hinged flapper which is opened when a fuel nozzle is inserted into the fill opening. The base is shielded against being manually ... | 11/21/1995 |
| 5425256 | Door knob security device A security device for use with rotatable door knobs which incorporates a pair of generally cylindrical members positioned on a door knob and telescoped together to receive a padlock to prevent separation. The housing members rotate relative to each other ... | 06/20/1995 |
| 5410896 | Gear shift knob locking device A housing structure having a first shell and second shell arranged for hinged securement together and including a cooperative lock to permit latching of the first and second shells together to receive a gear shift knob within the shell when secured togeth... | 05/02/1995 |
| 5388434 | Anti-theft mounting knob A theft prevention device for use in the mounting of automotive audio equipment, such as a two-way radio to a secure structure, such as a "U" bracket or trunnion. The invention is a generally conical-shaped mounting knob that threadably attaches the audio... | 02/14/1995 |
| 5212971 | Fuel tank plug structure A fuel tank plug structure has a cap assembly provided with a cap member and a push button combination lock, a fixing plate including a lever for cooperating with the push button combination lock, an intermediate portion below the fixing plate defining a ... | 05/25/1993 |
| 5201201 | Lockable sealer for end of threaded pipe A waterlock comprises a threaded cap nut (11) which fits tightly over the threaded end of a water pipe (15) or faucet (21). A sleeve (10) fits over the cap nut to prevent access to the nut. The sleeve is free to rotate about the cap nut such that turning ... | 04/13/1993 |
| 5027626 | Lockable apparatus for shielding rotatable handles and like articles Apparatus for lockably covering a rotatable article, such as a doorknob, fuel can cap, and the like, so as to prevent the grasping of the rotatable article, the invention including an axially extending pin attachable to the rotatable article to extend axi... | 07/02/1991 |
| 5005723 | Locking spout closure cap A locking spout closure cap is set forth provided with a threaded cylindrical lowermost portion with a cap mounted about the uppermost portion. Underlying the cap are plural pairs of combination dials provided with operative engagement with downwardly ext... | 04/09/1991 |
| 4884422 | Device for securing automobile wheels against theft The device comprises a sleeve (10,10') which serves to cover the polygonal head (4) of a wheel nut or bolt. The sleeve supports a lock cylinder (18) from which a locking member (28,36) projects for co-operating with a radial shoulder (6,6') formed in the ... | 12/05/1989 |
| 4856307 | Device for protecting motor-vehicle wheels against theft A device for protecting motor-vehicles against theft comprising a freely rotatable sleeve covering the polygonal head of a wheel nut or screw, into which sleeve a cylinder lock engages rotatably, which lock is provided with at least one tumbler entering t... | 08/15/1989 |
| 4794768 | Push button combination lock type gas cap and actuator employed therein A push button combination lock type gas cap and an actuator forming a part thereof, takes the form of a casing which may be mounted to an open end of a fuel tank filling neck with a stopper mounted within the casing for movement between a first position i... | 01/03/1989 |
| 4703636 | Center locking device of the intermediary plate type for a disc wheel of motor vehicle A center locking device of intermediary plate type for a disc wheel of motor vehicle. The device has a cap nut screwed onto a threaded section of a flange fixed to the axle of the disc wheel. The disc wheel is clamped between the cap nut and the flange. A... | 11/03/1987 |
| 4626616 | Anti-tapping device to prevent unauthorized connections to electrical utility service cables Unauthorized tapping onto ground level cable TV junction connector boxes or the like is prevented by an anti-tapping device which is removably anchored into the ground so that it resists tilting; has a housing enclosing the junction box, and the removal a... | 12/02/1986 |
| 4527406 | Locking fuel cap A locking fuel cap has a lock bolt which is slidably disposed in the cap handle and responsive to a key-operated lock mechanism to selectively drivingly connnect the cap handle to a ratchet ring. The ratchet ring is connected through a torque limiting dri... | 07/09/1985 |
| 4490996 | Fill pipe lock assembly A fill pipe lock assembly for protecting the fill pipe cap of an underground flammable liquid storage tank is disclosed. The lock assembly includes a floating baseplate inserted over the top of the fill pipe and below the adaptor ring and a removable cove... | 01/01/1985 |
| 4485647 | Locking fuel cap A locking fuel cap has a handgripping shell that is selectively connected to a threaded closure through a lock mechanism and a torque limiting mechanism. The torque limiting mechanism is operable to limit torque in the closing direction. The lock mechanis... | 12/04/1984 |
| 4483163 | Gas supply tank lock cap Two caps are axially nested so that a smaller inner threaded cap is free to rotate within the outer larger protective cap and retained therein to form a security lock cap unit for gas supply tanks. It includes a locking means associated with the outer cap... | 11/20/1984 |
| 4453388 | Locking fuel cap A fuel cap has a locking mechanism for preventing unauthorized removal of the fuel cap from the fuel fill tube. The lock mechanism includes a cam structure which is operable to provide a selective drive connection, depending upon the condition of the lock... | 06/12/1984 |
| 4376492 | Closure member for the fuel tank of an automotive vehicle A tank closure mechanism, especially for a fuel tank of an automotive vehicle, with a locking tube pertaining to the cap proper and including a pressure plate and a gasket. The locking tube is rotatable by rotating the cap housing during locking operation... | 03/15/1983 |
| 4362035 | Lockable closure A shield is rotatably mounted to a threaded element of the closure on an axis coincident with the axis of the threaded element, so that the shield impedes access to the threaded element. The shield can be removed from the threaded element or connected to ... | 12/07/1982 |
| 4342208 | Locking gas cap with torque override feature A locking gas cap for a threaded filler neck having a sealing lip extending peripherally about its axis, the cap comprising a closure member threaded to engage and close the filler neck, a gasket on the closure member for engaging and sealing against the ... | 08/03/1982 |
| 4336698 | Lug nut lock A tamper proof lug nut or bolt lock assembly includes a substantially cylindrical portion on which is rotatably mounted a sleeve having a hex portion for receiving a wrench and a selective coupling assembly disposed within the sleeve for selectively coupl... | 06/29/1982 |
| 4331012 | Lockable meter retention ring Lockable meter retention rings for securing electric meters in meter boxes comprise an inner ring of multiple arcuate parts wherein the inner ring has spaced-apart inwardly extending flanges for holding the electric meter in the meter box and a steel oute... | 05/25/1982 |
| 4299102 | Locking fuel cap with plastic mechanism A threaded cap for sealing an automotive vehicle fuel tank is provided with a unitary molded central plastic core and a bonnet rotatably mounted on the plastic core. A pair of concentric races are defined on the plastic core. The inner race carries a unit... | 11/10/1981 |
| 4280347 | Torque override threaded locking cap A locking cap for a threaded filler neck includes a closure member for engaging and closing the neck, a shell providing a hand grip and including a key-actuable lock, and a race disposed for rotation between the shell and closure. The race includes axiall... | 07/28/1981 |
| 4280346 | Torque override threaded locking cap A locking cap for a threaded filler neck includes a closure member for engaging and closing the neck, a shell providing a hand grip and including a key-actuable lock, and a race disposed for rotation between the shell and closure. The race includes axiall... | 07/28/1981 |
| 4269048 | Door locking system A door lock system for the rear doors of the trailer of a tractor-trailer rig is disclosed. The lock system includes a locking bar fixedly secured to one door and attachably secured to a second door. A pin projects from the second door so that it may pass... | 05/26/1981 |
| 4231485 | Cap and filler assembly for fuel tanks of automotive vehicles A cap and filter assembly for fuel tanks of automotive vehicles is provided in which the cap comprises two hollow cylindrical members of plastic material. One of said members has at one end a handle and a circular flange of the closure of the filler openi... | 11/04/1980 |
| 4231240 | Screw plug assembly The invention consists of a screw cap assembly including a manually operable handle piece rotatable in both directions, a cylindrical case mechanically coupled with the handle piece for unitary rotation therewith, a key-operable cylinder lock mounted in t... | 11/04/1980 |