US3792885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double bar lock
Assignee: GERVIS MELVYN A 295 FRANKLIN ST HAWORTH NJ 07641
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Filing: 1971-08-06
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Granted: 1974-02-19
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Expires: 1991-08-06
Abstract
Abstract A double bolt police lock of the type having oppositely extending locking bars is provided which has an improved appearance, increased versatility and a more effective locking mechanism. The lock generally comprises a lightweight elongated housing within which a pair of locking bars are slidably mounted for movement between an extended locking position and a retracted unlocking position. In a first embodiment of the invention the locking bars are operatively drivingly connected for displacement in opposite directions by means of a rack and pinion mechanism disposed centrally within the housing. The locking mechanism is disposed in a lock casing near one end of the bar housing and comprises an improved latching device active on one of the locking bars and effective to deadlock that bar in one of its two operative positions. A second embodiment provides an adjustable length feature wherein a substantial length of one of the locking bars is replaced by a connecting rod arrangement to provide an operative driving connection between that bar and a driving pinion at the opposite end of the housing. That connecting rod arrangement is adjustable in length and/or removable from the housing whereby the housing and rod may be cut to size. A third embodiment of the invention provides a locking mechanism which is adjustably positionable along a substantial length of the housing. That locking mechanism utilizes a rack formed on the underside of one of the locking bars adapted to operatively drivingly engage with an adjustably positionable pinion. The pinion is in turn controlled by a knob at the inside of the premises and a lock cylinder extending through the door at the desired position.
Inventors
- 👤 N Giardina
- 👤 R Babock
- 👤 M Gervis
- 👤 E Wozny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:24
CPC Classifications
E; E05; E05B; E05B13/00; E05B13/005; E05C; E05C9/00; E05C9/008; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0834; Y10T292/0836; Y10T292/0843; Y10T292/0844; Y10T292/096; Y10T292/1014; Y10T292/1022; Y10T292/1028; Y10T292/23
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
255 words
A double bolt security lock for securing a door against unauthorized entry, comprising a housing, first and second locking bars mounted in said housing for sliding movement therein, and adapted to extend outwardly therefrom at opposite ends thereof, driving means within said housing operably drivingly connecting said first and second bars and effective to move one of said bars in said housing in a given direction in response to the movement of the other of said bars in the opposite direction, locking means independent of said driving means comprising moving means operably connected to said first bar and effective when actuated to move said first bar between locking and unlocking positions, said second bar, when said first bar is moved to said locking position, moving away from said first bar to a locking position, said bars then extending respectively from opposite ends of said housing and said second bar, when said first bar is moved to said unlocking position, moving inwardly towards said first bar to an unlocked position; a lock casing, a first aperture in said housing, depressible means on said first bar and extending transversely therefrom into said first housing aperture such that said first bar is latched in said locking position whereby said opposing extending bars are deadlocked in their extended locking positions, and manually actuatable means on said lock casing movable into said housing aperture and effective when so moved to depress said depressible means to a position inwardly of said housing thereby to unlatch said first bar from said housing.
Claim 2
Dependent Claim
255 words
A double bolt security lock for securing a door against unauthorized entry, comprising a housing, first and second locking bars mounted in said housing for sliding movement therein, and adapted to extend outwardly therefrom at opposite ends thereof, driving means within said housing operably drivingly connecting said first and second bars and effective to move one of said bars in said housing in a given direction in response to the movement of the other of said bars in the opposite direction, locking means independent of said driving means comprising moving means operably connected to said first bar and effective when actuated to move said first bar between locking and unlocking positions, said second bar, when said first bar is moved to said locking position, moving away from said first bar to a locking position, said bars then extending respectively from opposite ends of said housing and said second bar, when said first bar is moved to said unlocking position, moving inwardly towards said first bar to an unlocked position; a lock casing, a first aperture in said housing, depressible means on said first bar and extending transversely therefrom into said first housing aperture such that said first bar is latched in said locking position whereby said opposing extending bars are deadlocked in their extended locking positions, and manually actuatable means on said lock casing movable into said housing aperture and effective when so moved to depress said depressible means to a position inwardly of said housing thereby to unlatch said first bar from said housing.
Claim 3
Dependent Claim
46 words
The security lock of claim 1, further comprising a recess extending transversely into said first bar, said depressible means being slidably mounted within said recess, and resilient means urging said depressible means into said first housing aperture when said first bar is in said first position.
Claim 4
Dependent Claim
82 words
The security lock of claim 2, further comprising a longitudinally extending slot in said housing communicating at one end with said first housing aperture, said manually actuatable means being said moving means and comprising a finger moveable through said first housing aperture into said recess to depress said depressible means within said recess and adapted to drivingly engage said recess and to move within said slot in said housing thereby to carry said first bar from said second to said first position.
Claim 5
Dependent Claim
28 words
The security lock of claim 3, wherein said finger is rotatably mounted on said lock casing and is adapted to move through said slot in an arcuate path.
Claim 6
Dependent Claim
75 words
The security lock of claim 4, further comprising a second aperture in said housing spaced from said first housing aperture and communicating with the other end of said slot, said finger being adapted to move inTo said housing through one of said apertures to traverse said slot and to move out of said housing through the other of said apertures, said second aperture receiving said depressible means in said second position of said first bar.
Claim 7
Dependent Claim
19 words
The security lock of claim 5, wherein said bars in their unlocked positions are fully retracted within said housing.
Claim 8
Dependent Claim
38 words
The security lock of claim 5, further comprising stop means operatively connected to said first bar and said lock casing and active therebetween to limit the travel of said first bar substantially between said first and second positions.
Claim 9
Dependent Claim
61 words
The security lock of claim 1, wherein there are two manually actuable means each effective to move said first bar from said second to said first position, one of said manually actuatable means being accessible from one side of said lock casing and the other of said manually actuatable means being key actuatable from the other side of said lock casing.
Claim 10
Dependent Claim
19 words
The security lock of claim 8, wherein said bars in their unlocked positions are fully retracted within said housing.
Claim 11
Dependent Claim
38 words
The security lock of claim 1, further comprising stop means operatively connected to said first bar and said lock casing and active therebetween to limit the travel of said first bar substantially between said first and second positions.
Claim 12
Dependent Claim
46 words
The security lock of claim 9, further comprising a recess extending transversely into said first bar, said depressible means being slidably mounted within said recess, and resilient means urging said depressible means into said first housing aperture when said first bar is in said first position.
Claim 13
Dependent Claim
46 words
The security lock of claim 10, further comprising a recess extending transversely into said first bar, said depressible means being slidably mounted within said recess, and resilient means urging said depressible means into said first housing aperture when said first bar is in said first position.
Claim 14
Dependent Claim
82 words
The security lock of claim 12, further comprising a longitudinally extending slot in said housing communicating at one end with said first housing aperture, said manually actuatable means being said moving means and comprising a finger moveable through said first housing aperture into said recess to depress said depressible means within said recess and adapted to drivingly engage said recess and to move within said slot in said housing thereby to carry said first bar from said second to said first position.
Claim 15
Dependent Claim
98 words
The security lock of claim 5, wherein there are two fingers each movable through said aperture into said recess to depress said depressible means in said recess and to drivingly engage said recess and adapted to move within and along said slot in said housing thereby to move said first bar from said second to said first position, said fingers being mounted on first and second rotatable shafts within said casing, said first shaft being manually rotatable from one side of said lock casing and said second shaft being key actuatable from the other side of said casing.
Claim 16
Dependent Claim
98 words
The security lock of claim 7, wherein there are two fingers each movable through said aperture into said recess to depress said depressible means in said recess and to drivingly engage said recess and adapted to move within and along said slot in said housing thereby to move said first bar from said second to said first position, said fingers being mounted on first and second rotatable shafts within said casing, said first shaft being manually rotatable from one side of said lock casing and said second shaft being key actuatable from the other side of said casing.
Claim 17
Dependent Claim
19 words
The security lock of claim 1 wherein said bars in their unlocked positions are fully retracted within said housing.
Claim 18
Dependent Claim
46 words
The security lock of claim 16, further comprising a recess extending transversely into said first bar, said depressible means being slidably mounted within said recess, and resilient means urging said depressible means into said first housing aperture when said first bar is in said first positioN.
Claim 19
Dependent Claim
82 words
The security lock of claim 17, further comprising a longitudinally extending slot in said housing communicating at one end with said first housing aperture, said manually actuatable means being said moving means and comprising a finger moveable through said first housing aperture into said recess to depress said depressible means within said recess and adapted to drivingly engage said recess and to move within said slot in said housing thereby to carry said first bar from said second to said first position.
Claim 20
Dependent Claim
224 words
A double bolt security lock for securing a door against unauthorized entry, comprising a housing, first and second locking bars mounted in said housing for sliding movement therein and adapted to extend outwardly therefrom at opposite ends thereof, driving means within said housing operably drivingly connecting said first and second bars and effected to move one of said bars within said housing in a given direction in response to the movement of the other of said bars in the opposite direction, and locking means independent of said driving means and comprising rotatable drive means active on said first bar and effective when actuated to move said first bar between locking and unlocking positions, said second bar, when said first bar is moved to said locking position, moving away from said first bar to a locking position, said bars then extending respectively from opposite ends of said housing and said second bar, when said first bar is moved to said unlocking position, moving inwardly towards said first bar to an unlocked position, said rotatable drive means being disposed at least partially externally of said housing and said first bar being at least partially exposed to the outside of said housing, said rotatable drive means being active on said exposed portion of said first bar and being adjustably positionable along a substantial length of said housing.
Claim 21
Dependent Claim
224 words
A double bolt security lock for securing a door against unauthorized entry, comprising a housing, first and second locking bars mounted in said housing for sliding movement therein and adapted to extend outwardly therefrom at opposite ends thereof, driving means within said housing operably drivingly connecting said first and second bars and effected to move one of said bars within said housing in a given direction in response to the movement of the other of said bars in the opposite direction, and locking means independent of said driving means and comprising rotatable drive means active on said first bar and effective when actuated to move said first bar between locking and unlocking positions, said second bar, when said first bar is moved to said locking position, moving away from said first bar to a locking position, said bars then extending respectively from opposite ends of said housing and said second bar, when said first bar is moved to said unlocking position, moving inwardly towards said first bar to an unlocked position, said rotatable drive means being disposed at least partially externally of said housing and said first bar being at least partially exposed to the outside of said housing, said rotatable drive means being active on said exposed portion of said first bar and being adjustably positionable along a substantial length of said housing.
Claim 22
Dependent Claim
35 words
The security lock of claim 19, wherein said first bar is at least partially exposed to the outside of said housing, said rotatable drive means being active on said exposed portion of said first bar.
Claim 23
Dependent Claim
81 words
The security lock of claim 20, wherein said rotatable drive means comprises rack means on said exposed portion of said first bar and a rotatable pinion operatively drivingly engaging said rack means, and manually actuatable means accessible from one side of said housing and operatively connected to said pinion and effective when actuated to rotate same and key actuatable means accessible from the other side of said housing and operatively connected to said pinion and effective when actuated to rotate same.
Claim 24
Dependent Claim
47 words
The security lock of claim 19, wherein said connecting member is a relatively thin connecting rod received in said other end of stabilizing bar, and wherein said adjustable securing means comprises a set screw threadedly mounted in said stabilizing bar and adapted to engage said connecting rod.
Claim 25
Dependent Claim
49 words
The security lock of claim 22, wherein said first and second driven means comprise first and second racks respectively and said rotatable drive means comprises a pinion, and manually actuatable means extending through opposite sides of said housing and effective when actuated to rotate said pinion within said housing.
Claim 26
Dependent Claim
277 words
A double bolt securing lock for securing a door against unauthorized entry comprising a housing, first and second locking bars of substantial thickness mounted within said housing at first and second ends thereof for sliding movement therein and adopted to extend outwardly therefrom at said first and second ends, respectively, rotatable drive means mounted within said housing near said first end thereof, first driven means on said first bar operably drivingly engaging said rotatable drive means, second driven means mounted within said housing and slidable therein and operably drivingly engaging said rotatable drive means, said rotatable drive means being effective to move said first and second driven means simultaneously, reciprocally in opposite directions, aNd connecting means within said housing connected to one end of said second driven means and at the other end to said second bar and effective to transmit the movement of said second driven means to said second bar, said rotatable drive means thereby being effective to simultaneously move said first and second bars between an unlocking position and a locking position extending in opposite directions outwardly of said housing, said connecting means comprising a stabilizing bar slidably mounted within said housing, means securing said stabilizing bar at one end to said second driven means, a connecting member secured at one end to said locking bar and means adjustably securing said other end of said connecting member to said other end of said stabilizing bar, and aperture means in said housing in registration with said adjustable securing means whereby said adjustable securing means is accessible through said aperture in said housing, whereby said lock may be modified for installation on doors of various sizes.
Claim 27
Dependent Claim
277 words
A double bolt securing lock for securing a door against unauthorized entry comprising a housing, first and second locking bars of substantial thickness mounted within said housing at first and second ends thereof for sliding movement therein and adopted to extend outwardly therefrom at said first and second ends, respectively, rotatable drive means mounted within said housing near said first end thereof, first driven means on said first bar operably drivingly engaging said rotatable drive means, second driven means mounted within said housing and slidable therein and operably drivingly engaging said rotatable drive means, said rotatable drive means being effective to move said first and second driven means simultaneously, reciprocally in opposite directions, aNd connecting means within said housing connected to one end of said second driven means and at the other end to said second bar and effective to transmit the movement of said second driven means to said second bar, said rotatable drive means thereby being effective to simultaneously move said first and second bars between an unlocking position and a locking position extending in opposite directions outwardly of said housing, said connecting means comprising a stabilizing bar slidably mounted within said housing, means securing said stabilizing bar at one end to said second driven means, a connecting member secured at one end to said locking bar and means adjustably securing said other end of said connecting member to said other end of said stabilizing bar, and aperture means in said housing in registration with said adjustable securing means whereby said adjustable securing means is accessible through said aperture in said housing, whereby said lock may be modified for installation on doors of various sizes.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |