US3912309A - Lock for a door or the like - Google Patents

Lock for a door or the like Download PDF

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Publication number
US3912309A
US3912309A US458818A US45881874A US3912309A US 3912309 A US3912309 A US 3912309A US 458818 A US458818 A US 458818A US 45881874 A US45881874 A US 45881874A US 3912309 A US3912309 A US 3912309A
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US
United States
Prior art keywords
bolt
casing
lock
latched
door
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US458818A
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English (en)
Inventor
Jean Arnold Fischer
Knud Hansen Fynbo
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Daempa AS
Original Assignee
Daempa AS
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Filing date
Publication date
Application filed by Daempa AS filed Critical Daempa AS
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Publication of US3912309A publication Critical patent/US3912309A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B55/00—Locks in which a sliding latch is used also as a locking bolt
    • E05B55/005—Cylindrical or tubular locks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/0086—Toggle levers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/06—Adjustable backset
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/096—Sliding
    • Y10T292/0969—Spring projected
    • Y10T292/097—Operating means
    • Y10T292/0974—Link and lever
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/096—Sliding
    • Y10T292/0969—Spring projected
    • Y10T292/097—Operating means
    • Y10T292/0977—Cam
    • Y10T292/098—Auxiliary bolt
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/54—Trippers
    • Y10T292/558—Sliding bolt, swinging detent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5093—For closures
    • Y10T70/5155—Door
    • Y10T70/5199—Swinging door
    • Y10T70/5372—Locking latch bolts, biased
    • Y10T70/5381—Projectable beyond normal biased position

Definitions

  • a door lock is' disclosed as including a spring loaded bolt displaceable in a casing between normal and retracted positions, an actuating motor for affecting movement of the bolt by a connecting rod therebetween, and a pawl blocking movement of the bolt relative to the casing to define the normal position, and a reset slide for freeing the pawl whereby the bolt is biased to its locked position. In its locked position the bolt extends farther out of the casing so as to prevent a forced opening of the door as by a tool and/or deformation of the door frame.
  • the present invention relates to a lock for a door or the like and, in particular, to such a lock of the type having a spring biased bolt which is released or actuated manually as by a knob, key, etc.
  • Conventional door locks of the biased bolt type generally include a first bolt which has a beveled front edge and which is actuated by a door knob, and a second bolt which is rectangular in cross section having flat front face and which is actuated as by a key.
  • the purpose of the first bolt is to permit the door to be opened and closed without a key as by door knobs or the like.
  • the purpose of the second bolt is to provide an independent lock for the door which requires separate opening as by a key.
  • a lock for a door or the like is constructed to include a casing, a bolt slidably disposed in the casing and being movable between a plurality of positions such as latched, locked and retracted positions, actuator means operable for moving the bolt from the latched position to the retracted position, means urging the bolt toward its latched and locked positions, releasable blocking means disposed between the casing and the bolt limiting movement thereof relative to the casing to define the latched position, and reset means slidably disposed relative to the casing and the bolt for releasing the blocking means whereby the bolt is automatically moved to its locked position.
  • An object of the present invention is to construct a door lock in a relatively simple design capable of being economically manufactured while at the same time being extremely reliable.
  • This invention has another object in that the latching and locking functions of a door lock bolt are retained in a door lock having a single bolt which is automatically moved between latched and locked positions.
  • Another object of this invention is to extend the bolt of a door lock from its latching position to a locking position whereby the bolt provides a safety lock to preclude forced opening of a door as by a tool or deformation of the door frame.
  • the present invention has yet another object in that the bolt of a door lock has a safety lock position wherein movement in one direction is prevented by a casing abutment and wherein movement in an opposite direction is prevented by a connecting rod stop which is freed by movement of a crank mechanism.
  • FIG. 1 is a side elevation with parts in section of a door lock embodying the present invention and showing the components in a bolt retracted position;
  • FIG. 2 is a view similar to FIG. 1 showing the components in a bolt latched position
  • FIG. 3 is a view similar to FIGS. 1 and 2 but showing the components in a blocking or locked position;
  • FIG. 4 is a longitudinal section taken at right angles through FIG. 2;
  • FIG. 5 is a partial end elevation as viewed from the right of FIG. 4;
  • FIG. 6 is a partial view of FIG. 4 but showing the bolt in the advanced locked position of FIG. 3.
  • the lock for a door includes a bar-shaped, cylindrical bolt casing l which can be inserted into a hole or mortise bored in the front edge of a door, not shown, and which has a front plate 2 that, when the lock is mounted, lies flush with and is secured as by screws to the edge of the door.
  • the front plate 2 has a guiding hole for the bolt 3 of the lock, which bolt 3 is substantially cylindrical with a diameter corresponding to the internal diameter of the casing 1.
  • the bolt 3 has a pair of side flat surfaces in the form of a plane front 4 and a back 5 parallel thereto with a beveled end surface 6 inclined therebetween; as is shown in FIGS. 4 and 6, the inclined end face 6 extends between such side surfaces 4 and 5.
  • An actuator mechanism includes a rotor 7 which is journalled in on an axis which is at right angles to the longitudinal axis of the casing l and which is provided with a non-round hole for the shaft of any suitable manual handle or door knob (not shown).
  • US. Pat. application Ser. No. 340,583 filed Mar. 12, I973, abandoned in favor of Continuation application Ser. No. 441,60l filed Feb. I l, 1974 which is now US. Pat. No. 3,853,340 dated Dec. 10, 1974 relates to a pressbutton-operated door lock in which, in some embodiments, a crank mechanism is incorporated in the movement-transmitting connection between the press button and the bolt.
  • a press button for operating the rotor it is also possible to employ a press button for operating the rotor, but it is equally possible to use the lock when it is provided with an operating grip of some other kind,'particularly ordinary, barshaped door handles or rotatable knobs.
  • a spiral spring 8 is fitted around the actuator rotor 7 and is with its free end 9 led out through and secured in a hole in an end cover 10 in the bolt casing 1. This spiral spring 8 constantly urges the actuator rotor 7 to rotate clockwise as viewed in FIGS. I-3.
  • the actuator rotor 7 is designed with a pair of flanges 11 serving as crank arms with a crank 12 which is connected to the bolt 3 by a rigid connecting rod 13 having a ball head 14 accommodated in a corresponding ball seat in the rearmost end of the bolt 3.
  • a pocket 15 in the front surface 4 of the bolt 3 is fitted with a pawl 16 that is normally biased outwardly by a compression coil spring 17.
  • the toe of the panel 16 projects slightly in relation to the front surface 4 of the bolt and thereby can enter into engagement with the inside of the front plate 2 of the bolt casing, by which means the bolt 3 is prevented from advancing further in relation to the bolt casing.
  • the pawl 16 enters a recess 18 in a reset slide member 19 which is accommodated displaceably in a surface track in the front surface 4 of the bolt 3..
  • the frictional conditions are so adapted that the reset slide member 19 normally reciprocates together with the bolt 3, but it may be spring-loaded in the forward direction, that is to say towards its extreme end position in the guiding track 20.
  • the bolt 3 can slide inwards in the casing 1, either by the actuator rotor 7 being rotated counter-clockwise from the position of FIG. 2 into the position of FIG. 1 by means of a handle (not shown) or by a pressure being exerted on the inclined end face 6 of the bolt when the door is closed without the handle being used.
  • the reset slide member 19 accompanies the bolt, and such two parts as well as the pawl 16 consequently remain in the position in relation to each other which they take up in FIG. 4.
  • the construction is preferably so adapted that the releasable stop or the pawl 16 secures the rotor 7 in the position of FIG. 2, in which the crank 12 is located at a short distance from and on the right-hand side of the vertical plane through the axis of the rotor, while the second stop 22 limits the further rotation of the rotor into the position of FIG. 3, in which the crank 12 is located at a short distance below the horizontal plane through the axis of the rotor.
  • the travel of the bolt 3 from the normal, latched position, FIGS. 2 and 4, into the additionally advanced blocked or extended locked position, FIG. 3 can be of almost the same order of magnitude as the travel from the retracted position, FIG. 1, into the normal, latched position.
  • the casing 1 may be made of a simple length of tube, but in the embodiment shown in the drawing it is constructed of two parts, viz. a front part 1' and a rear part 1 (FIG. 1), which can rotate l80 in relation to each other around the longitudinal axis of the casing.
  • the two parts 1' and 1" are interconnected by means of a pin 24 which is located in the casing part 1' and engages a slot, not visible in the illustrated cross-section, which extends for a circular arc of 180 in the part 1.
  • the pin 24 located at one end of the slot the lock is intended to be used with a right-handed door, while with the pin located at the other end of the 180 slot the lock can be used with a left-handed door.
  • the bolt 3 is prevented from rotating in relation too the casing part 1',
  • the largest dimension at right angles to the axis of the actuator rotor constructed as a crank mechanism may be smaller than the largest cross-sectional dimension of the bolt proper, and it will therefore be possible to incorporate the actuator rotor with the urging spring in a bar-shaped, cylindrical casing, the outer dimensions of which are only slightly larger than the largest diameter of the bolt.
  • the door lock can be mounted in a particularly simple way, viz. by being simply inserted into a hole or mortise which is bored in the front edge of the door and which has a diameter corresponding to the external diameter of the bolt casing.
  • the crank 12 of the rotor 7 is located on one and the same side of a first plane which contains the axis of the rotor and which is parallel to the direction of displacement of the bolt 3, and is located on the sides respectively facing towards and away from the bolt of a second plane which contains the axis of the rotor 7 and is at right angles to the first plane.
  • first plane may be viewed as a horizontal plane including the axis of rotor 7 and thelongitudinal axis of the casing l;
  • the second plane may be viewed as a vertical plane including the axis of rotor 7 and a vertical axis of the casing intersecting the rotor axis.
  • the rotor 7 In the position corresponding to the latched position of the bolt, the rotor 7 is secured by a releasable stop 16 which upon release permits a further, spring-actuated turning, by which the crank 12 passes'the said first plane, but remains on the same side of the said second plane.
  • the stop 16 As long as the stop 16 is not released, that is to say when it is in its active position, it will prevent the bolt 3 from advancing further from its latched position, and the inclined face 6 of the bolt 3 will, when the door is closed, without being actuated by the rotor 7 cause the bolt 3 to be displaced backwards in the casing 1 while overcoming the load of the spring 8. Consequently, the door is able to latch in the normal manner. However, this should not be the case when the bolt is in its safety or extended locked position, and the stop 16 would therefore not be released until the door is closed.
  • such release can be ensured automatically by the releasable stop being constituted by the pawl 16 which is located in the bolt 3 and which is springloaded towards its active position (FIG. 4) in which, by abutting against the plate 2 of the casing 1, it prevents a further advance of the bolt 3 from its latched position; the pawl 16 is movable into a released position against the bias of spring 17 so that it clears the casing plate 2, and such pawl is guided by the reset slide member 19 which is displaceable in a surface track 20 in the bolt 3.
  • the bolt 3 In its latched position, the bolt 3 extends out of the casing 1 and includes the recess 15 making room for the advance of the pawl when the reset slide abuts the striking plate 21 upon closure of the door.
  • the reset slide member 19 will during the closing of the door accompany the bolt during its backward movement, that is, movement inwardly in the casing, but when the bolt 3 is again advanced under the spring load and thereby the associated striking plate 21, the latter will retain the reset slide member 19 in the casing and thereby cause the pawl 16 to be retained in the bolt, so that the bolt 3 can advance a further extended distance in relation to the casing 1 and the striking plate 21.
  • the second 'stop 22 limits the further rotation of the rotor 7, and
  • this second stop expediently co-operates with the tooth 23 on connecting rod 13 in such a way that is prevents a backward displacement of the connecting rod and thereby of the bolt 3. Consequently, the bolt 3 is secured effectively in the additionally advanced position or extended locked position until the connecting rod 13 once more clears the second stop 22 as by actuation of the rotor 7.
  • the present invention has the particular advantage of accomplishing an automatic locking operation by the simple and economical construction of the reset slide member 19.
  • the reset slide member 19 slides with the bolt 3 relative to the casing 1.
  • the reset slide member 19 abuts the striking plate 21 and causes the pawl 16 to be reset from the recess 18 into the pocket whereby the bolt 3 moves relative to the reset slide member 19 to its extended locked position.
  • a suitable handle, bar, key or shaft is then utilized to turn the rotor 7 counterclockwise as viewed in FIG. 3 whereupon the connecting rod tooth 23 is moved slightly forward of the stop 22 to be released therefrom and the connecting rod 13 is moved rearwardly causing the bolt 3 to follow.
  • a lock for a door or the like comprising in combination a casing
  • a bolt slidably disposed in said casing and being movable between a plurality of positions including a latched positionn, an extended locked position and a retracted position,
  • actuator means operable for moving said bolt from the latched position to the retracted position
  • releasable blocking means disposed between said casing and said bolt limiting movement of said bolt relative to said casing to define said latched position
  • said bolt having a beveled end surface inclined between a pair of flat surfaces, one of said flat surfaces projecting out of said casing when said bolt is in its latched position, and both of said flat surfaces projecting out of said casing when said bolt is in its locked position, and
  • said releasable blocking means includes a pawl element operatively disposed in said pocket means.
  • said reset means includes a slide element having a recess and wherein said pawl element has an abutment end disposed in said recess when said bolt is in its latched and locked positions, said abutment end of said pawl element being moved out of said recess in response to movement of said bolt relative to said slide element whereby said bolt is extended to its locked position.
  • said actuator means includes a rotor having a crank element, a connecting rod having one end pivoted to said crank element, a ball and socket connecting the other end of said rod to said bolt.
  • a lock as claimed in claim 5 wherein said urging means comprises a flat spring having a fixed portion and a coil portion coiled in tension around said rotor.
  • a lock as claimed in claim 7 wherein said stop means comprises a stop member fixed in said casing and a tooth element on said connecting rod cooperates with said stop member.

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  • Lock And Its Accessories (AREA)
  • Casings For Electric Apparatus (AREA)
US458818A 1973-04-13 1974-04-08 Lock for a door or the like Expired - Lifetime US3912309A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK203273 1973-04-13

Publications (1)

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US3912309A true US3912309A (en) 1975-10-14

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US (1) US3912309A (ja)
JP (1) JPS501900A (ja)
DE (1) DE2417322A1 (ja)
FR (1) FR2225601B1 (ja)
IT (1) IT1009453B (ja)
NO (1) NO134760C (ja)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4124238A (en) * 1975-11-03 1978-11-07 Bischoff Jr Robert F Latch bolt mechanism
US4255953A (en) * 1979-05-02 1981-03-17 Norris Industries, Inc. Combination spring/dead bolt lock
US4332407A (en) * 1979-12-12 1982-06-01 Ideal Security Hardware Corporation Automatically locking crossbolt deadlock
US4333324A (en) * 1979-05-02 1982-06-08 Norris Industries, Inc. Spring/dead bolt lock assembly
US4363227A (en) * 1980-05-14 1982-12-14 Lo Jiung P Eng Door lock construction
US4601504A (en) * 1984-04-23 1986-07-22 Major Lock, Corp. Safety mechanism for high security lock
US4615550A (en) * 1984-12-14 1986-10-07 Gennaro Abate Lock mechanism
US4623175A (en) * 1983-11-10 1986-11-18 Charles Carroll High security door latch and deadbolt
US4657206A (en) * 1982-05-31 1987-04-14 National House Industrial Co., Ltd. Door installation and a locking device used therein
US4828299A (en) * 1987-03-31 1989-05-09 Hartwell Corporation Latch
US5003800A (en) * 1989-07-17 1991-04-02 Phelps-Tointon, Inc. Door lock control system featuring a remote control for a pneumatically powered door lock mechanism
DE8914367U1 (de) * 1989-12-06 1991-04-04 BKS GmbH, 5620 Velbert Einsteckschloß mit Fallenriegel
US5044182A (en) * 1988-09-26 1991-09-03 Totten Clyde D Automatic deadbolt
US5368345A (en) * 1990-10-12 1994-11-29 Watts; John R. Door lock
US5516160A (en) * 1994-04-11 1996-05-14 Master Lock Company Automatic deadbolts
US5676407A (en) * 1996-06-03 1997-10-14 Schlage Lock Company Dead bolt actuating assembly
US5918916A (en) * 1997-12-22 1999-07-06 Schlage Lock Company Automatic deadbolt with separate trigger
US6135512A (en) * 1998-06-12 2000-10-24 Galvin; Donna Automatic door latch
WO2001027421A1 (es) * 1999-10-13 2001-04-19 Pinero Fernandez Alvaro Pestillo de golpe perfeccionado
US6361087B1 (en) * 1998-01-09 2002-03-26 Ferco International Ferrures Et Serrures De Batiment Sa Locking fitting for a door, French window or the like provided with a spring-bolt elastically restored into locking position
US6389855B2 (en) * 1996-03-26 2002-05-21 Gretsch-Unitas Gmbh Baubeschlage Locking device for a door, window or the like
US6669246B2 (en) * 2000-03-11 2003-12-30 Banham Patent Lock Limited Lock
US6722710B2 (en) * 2000-03-11 2004-04-20 Banham Patent Locks Limited Lock
US20070204665A1 (en) * 2006-03-06 2007-09-06 John Lie-Nielsen Electronic deadbolt lock with a leverage handle
CN111911000A (zh) * 2020-09-03 2020-11-10 珠海优特物联科技有限公司 一种锁具
US11377873B2 (en) * 2019-03-12 2022-07-05 Schlage Lock Company Llc Electric latch mechanism
US20230146406A1 (en) * 2016-03-16 2023-05-11 Spectrum Brands, Inc. Latch assembly
US20240044171A1 (en) * 2023-09-15 2024-02-08 Dovhov Llc Intelligent lock for recreational vehicle

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CY1267A (en) * 1980-10-27 1984-11-23 Dover Eng Works Ltd Manufacturing manhole cover frames
JPS58174576U (ja) * 1982-05-17 1983-11-22 株式会社長澤製作所 扉錠の構造
GB8622120D0 (en) * 1986-09-13 1986-10-22 Chubb & Sons Lock & Safe Co Locking mechanisms
NL2007662C2 (en) * 2011-10-27 2013-05-06 Assa Abloy Nederland B V Lock assembly with a bolt.
DE202015000106U1 (de) 2015-01-14 2015-02-05 Kfv Karl Fliether Gmbh & Co. Kg Schloss
DE202016001540U1 (de) 2016-03-10 2016-05-09 Kfv Karl Fliether Gmbh & Co. Kg Schloss

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1191539A (en) * 1916-04-22 1916-07-18 Yale & Towne Mfg Co Double-throw latch-bolt.
US1411059A (en) * 1921-01-13 1922-03-28 Bassick Co Latch for doors
US1557374A (en) * 1922-07-21 1925-10-13 Miller Lock Company Latch
US2710216A (en) * 1952-11-10 1955-06-07 Vonnegut Hardware Company Latch mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1191539A (en) * 1916-04-22 1916-07-18 Yale & Towne Mfg Co Double-throw latch-bolt.
US1411059A (en) * 1921-01-13 1922-03-28 Bassick Co Latch for doors
US1557374A (en) * 1922-07-21 1925-10-13 Miller Lock Company Latch
US2710216A (en) * 1952-11-10 1955-06-07 Vonnegut Hardware Company Latch mechanism

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4124238A (en) * 1975-11-03 1978-11-07 Bischoff Jr Robert F Latch bolt mechanism
US4255953A (en) * 1979-05-02 1981-03-17 Norris Industries, Inc. Combination spring/dead bolt lock
US4333324A (en) * 1979-05-02 1982-06-08 Norris Industries, Inc. Spring/dead bolt lock assembly
US4332407A (en) * 1979-12-12 1982-06-01 Ideal Security Hardware Corporation Automatically locking crossbolt deadlock
US4363227A (en) * 1980-05-14 1982-12-14 Lo Jiung P Eng Door lock construction
US4657206A (en) * 1982-05-31 1987-04-14 National House Industrial Co., Ltd. Door installation and a locking device used therein
US4623175A (en) * 1983-11-10 1986-11-18 Charles Carroll High security door latch and deadbolt
US4601504A (en) * 1984-04-23 1986-07-22 Major Lock, Corp. Safety mechanism for high security lock
US4615550A (en) * 1984-12-14 1986-10-07 Gennaro Abate Lock mechanism
US4828299A (en) * 1987-03-31 1989-05-09 Hartwell Corporation Latch
US5044182A (en) * 1988-09-26 1991-09-03 Totten Clyde D Automatic deadbolt
US5003800A (en) * 1989-07-17 1991-04-02 Phelps-Tointon, Inc. Door lock control system featuring a remote control for a pneumatically powered door lock mechanism
DE8914367U1 (de) * 1989-12-06 1991-04-04 BKS GmbH, 5620 Velbert Einsteckschloß mit Fallenriegel
US5368345A (en) * 1990-10-12 1994-11-29 Watts; John R. Door lock
US5516160A (en) * 1994-04-11 1996-05-14 Master Lock Company Automatic deadbolts
US6389855B2 (en) * 1996-03-26 2002-05-21 Gretsch-Unitas Gmbh Baubeschlage Locking device for a door, window or the like
US5676407A (en) * 1996-06-03 1997-10-14 Schlage Lock Company Dead bolt actuating assembly
US5918916A (en) * 1997-12-22 1999-07-06 Schlage Lock Company Automatic deadbolt with separate trigger
US6361087B1 (en) * 1998-01-09 2002-03-26 Ferco International Ferrures Et Serrures De Batiment Sa Locking fitting for a door, French window or the like provided with a spring-bolt elastically restored into locking position
US6135512A (en) * 1998-06-12 2000-10-24 Galvin; Donna Automatic door latch
US6793254B1 (en) 1998-06-12 2004-09-21 Donna Galvin Automatic door latch
WO2001027421A1 (es) * 1999-10-13 2001-04-19 Pinero Fernandez Alvaro Pestillo de golpe perfeccionado
US6669246B2 (en) * 2000-03-11 2003-12-30 Banham Patent Lock Limited Lock
US6722710B2 (en) * 2000-03-11 2004-04-20 Banham Patent Locks Limited Lock
US8033147B2 (en) 2006-03-06 2011-10-11 Handytrac Systems, Llc Electronic deadbolt lock with a leverage handle
US7698917B2 (en) 2006-03-06 2010-04-20 Handytrac Systems, Llc Electronic deadbolt lock with a leverage handle
US20070204665A1 (en) * 2006-03-06 2007-09-06 John Lie-Nielsen Electronic deadbolt lock with a leverage handle
US20230146406A1 (en) * 2016-03-16 2023-05-11 Spectrum Brands, Inc. Latch assembly
US12091892B2 (en) * 2016-03-16 2024-09-17 Assa Abloy Americas Residential Inc. Latch assembly
US11377873B2 (en) * 2019-03-12 2022-07-05 Schlage Lock Company Llc Electric latch mechanism
US11982105B2 (en) 2019-03-12 2024-05-14 Schlage Lock Company Llc Electric latch mechanism
CN111911000A (zh) * 2020-09-03 2020-11-10 珠海优特物联科技有限公司 一种锁具
CN111911000B (zh) * 2020-09-03 2022-02-01 珠海优特物联科技有限公司 一种锁具
US20240044171A1 (en) * 2023-09-15 2024-02-08 Dovhov Llc Intelligent lock for recreational vehicle
US12110711B2 (en) * 2023-09-15 2024-10-08 Dovhov Llc Intelligent lock for recreational vehicle

Also Published As

Publication number Publication date
NO134760C (ja) 1976-12-08
IT1009453B (it) 1976-12-10
FR2225601A1 (ja) 1974-11-08
NO134760B (ja) 1976-08-30
JPS501900A (ja) 1975-01-09
FR2225601B1 (ja) 1978-03-24
DE2417322A1 (de) 1974-10-31

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