Class 70/401 - Plural shanks, stems or bit wings

Subclass of Class 70 - Locks
Definition: Devices having plural shanks, plural stems or plural bit
No. of patents: 33
Last issue date: 05/13/2008

Number	Title	Issue Date
7371955	Drum tuning key A drum tuning key comprises a handle portion, a barrel portion defining an axis connected to the handle portion, the barrel portion having internal walls defining a cavity extending inwardly along the axis from an end of the barrel portion, the cavity being square i...	05/13/2008
7353675	Lock barrel and a driving part for the same A lock barrel and a driving part for the same comprises a plurality of key channels for the insertion o the driving part (key) and a plurality of transverse gateways for housing movable parts, which will bulge into the key channels for making the channels effectivel...	04/08/2008
7174757	Lock cylinder and key set Disclosed is a lock cylinder and key set, which includes a lock cylinder, which has a keyway with two keyholes separated by a partition, and a key, which has two blades insertable into the two keyholes of the keyway for acting against respective pins in the lock cyl...	02/13/2007
6973814	Safety key and locking cylinder, and locking system with such safety keys and locking cylinders The safety key has a shank (6) which is provided with a plurality of control surfaces (7) for properly positioning tumblers and has a front end and a rear end (6a, 6b). At a front end (4a), the rotor (4)...	12/13/2005
6957556	Disk tumbler lock and key, improved means and methods of manufacturing for An improved disk-tumbler lock and key for use with a gun-lock device includes a key specifically adapted to be ring-mounted so that it may be worn by and is thus available for the user at all times. The particular shape of the key includes those characteristics whic...	10/25/2005
6842742	System for providing early warning preemptive postal equipment replacement An improved system for providing early warning preemptive postal equipment replacement. Selected performance parameters the postal equipment are monitored and compared against predetermined operational boundaries. The system is capable of providing for variability i...	01/11/2005
6755061	Key set configured to be held in a compact arrangement The individual keys in a set of keys are configured to fit together in a compact arrangement, with the heads of the keys being in alignment with one another in one direction and stacked against one another in another direction, and with the shanks extending essentia...	06/29/2004
5680782	Theft surveillance case and jig for theft surveillance case The invention provides a theft surveillance case having a stationary member (100) and hook-shaped locking portions (203, 204). Two projecting portion groups (121, 122; 123, 124) are formed in the stationary member (100) with a predetermined distance betwe...	10/28/1997
5390515	Security container and release key therefor A recording medium security container and associated release key which disengages a lock mechanism of the security container enabling the security container to be moved to an open position for removing the contents thereof. The security container has a ba...	02/21/1995
5372024	Lock-cylinder key The invention relates a lock-cylinder key (S) having bit steps (6) protruding on the wide sides (4) of its key shank (1) for the positioning of the lock-cylinder tumblers (19). In order to obtain a particularly simple but very dependable solution from a l...	12/13/1994
5355702	Security combination key A security combination key is provided, which consists of a hollow housing having a removable cover plate. An elongated guide member having an open track therein and a ward groove on a side thereof, extends from one side of the hollow housing. A plurality...	10/18/1994
5335520	Flat lock A flat lock set has a flat lock having a cylinder, a tumbler, several rings and springs and a key having several stepped blades each having several shoulders. The cylinder is mounted in a door and has four groups of ribs formed therein. Each group include...	08/09/1994
5255543	Opener for security package with spring loaded keying mechanism A device for opening security packages used to protect audio-visual media from being stolen is disclosed. The security package opening device includes a base which assists with proper positioning of the security package to be opened. It also includes a sl...	10/26/1993
5191314	Combination anti-theft lock and alarm A portable combination anti-theft lock and alarm to prevent the theft or displacement of protected property and comprising a housing, an audible alarm and alarm circuit located within the housing, and a flexible electrically conductive locking cable havin...	03/02/1993
5129244	Opener for security package with rotatable locking channel A device for opening security packages used to protect audio-visual media from being stolen is disclosed. The security package opening device includes a base which assists with proper positioning of the security package to be opened. It also includes a sl...	07/14/1992
4909054	Key shank with rectangular slot and keycase Each key in a set of keys has a headless shank. A slotted opening through the shank is slightly larger than the shank so that any key can be installed over the shank of the active key to act as a wrench to turn the active key. In addition, any shank can c...	03/20/1990
4875352	Construction keying The invention comprises a two part key which replaces a conventional key in a conventional lock cylinder for purpose of temporary use wherein one of the parts is a plastic or similar material insert which replaces a portion of the conventional key and a s...	10/24/1989
4787225	Key for a lock cylinder For increased security the key (2; 40; 44) has one or more blade portions (43; 45; 46; 5, 6). The longitudinal central plane (A, B) of the or each blade portion is offset from the guide region (42; 7) running along the back edge of the key shaft (3). Furt...	11/29/1988
4716745	Video cassette security device A security device for mounting in the alignment or positioning channel of video cassette which prevents utilization of the cassette in a VCR. The security device comprises a locking member having tabs which extend into openings of the alignment channel to...	01/05/1988
4603565	Cylinder lock embodying at least two rows of tumbler pin bores and opposed rows of locking pins which interact to preclude picking A cylinder lock assembly which includes a hollow lock body and a barrel rotatably mounted in the lock body having a keyway extending longitudinally from one end thereof. There is also provided a plurality of tumbler pin bores located in the barrel arrange...	08/05/1986
4589549	Audio cassette package A reusable molded plastic package for holding audio cassettes which enables the cassettes to be stored and displayed in racks heretofore used for record discs and eight-track audio tapes and which includes a slide lock which secures the cassette in the pa...	05/20/1986
4498327	Cylinder locks and keys therefor A method of forming a key including providing a key blank of V-shaped transverse cross section so as to have two blade portions joined by a base portion. The method further includes forming teeth on the blade portions and then bending the blank to a subst...	02/12/1985
4490998	Tamper-resistant lock assembly A tamper-resistant lock assembly includes a pair of cooperating keyway guard plates, each of which has a keyway formed therethrough. The guard plates are laterally displaceable relative to one another for movement between an open position, in which the ke...	01/01/1985
4429555	Revolving cylinder locks A revolving cylinder lock having a locking pin extending parallel to the axis of rotation of a barrel part within a cylindric passage and, in the locked condition, received in both a first cavity part extending into the wall of the passage and a second ca...	02/07/1984
4325242	Multi-level lock system and method A key for use in a hierarchal lock system with an elongated body and selectively spaced notches cut on an elongated edge of the body. Two rows of discontinuous rib members are attached to each side of the elongated body of the key....	04/20/1982
4320638	Tumbler lock and key A key blank in which the upper edge surface of the blade has a longitudinal groove dividing that surface into two laterally spaced parts, and a relatively narrow waist is formed in the blade upper portion by progressive narrowing of the blade width downwa...	03/23/1982
4301664	Key bracelet A claspless bracelet constructed of a malleable band with a key blank attached to at least one end of the band. Preferably the key blank or blanks are formed integral with or permanently affixed to the bracelet band. The bracelet is particularly directed ...	11/24/1981
4296618	Lock and key device Lock and key device with the lock comprising a barrel for driving at least one bolt, rotatably mounted in a fixed hollow shaft and containing fittings the cooperation of which with wing couples formed on the key in its operational portion unblocks the bar...	10/27/1981
4126025	Locking device Disclosed is a locking device having an inner lock cylinder axially slidable in a recess in the lock housing. Tumbler means prevent relative motion between the cylinder and the housing until the axial insertion of a key with a double set of notches. Upon ...	11/21/1978
4047410	Mechanism for releasing device attaching an anti-theft monitor to merchandise A releasable, reusable, tamperproof device for attaching an anti-theft monitor to an article of merchandise is disclosed. The attachment device includes a tack adapted to be passed through the monitor and the article and into a keeper. The keeper encloses...	09/13/1977
4044578	Safety lock A safety lock and its actuation key are disclosed. The lock comprises an apertured barrel mounted in a cylinder which barrel can be rotated with respect to the cylinder when notched cams inside said barrel have their notches aligned, so that by rotating t...	08/30/1977
3973418	Reusable device for attaching an anti-theft monitor to merchandise A releasable, reusable, tamperproof device for attaching an anti-theft monitor to an article of merchandise is disclosed. The attachment device includes a tack adapted to be passed through the monitor and the article and into a keeper. The keeper encloses...	08/10/1976
3971237	Door lock A lock for sliding doors for cabinets and the like. A shoulder on a catch element carried by the door extends through a lock opening in the cabinet frame and engages the edge thereof to secure the door. A key of particular length moves the shoulder from t...	07/27/1976

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Class 70/401 - Plural shanks, stems or bit wings