US3695657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide lock
Assignee: Automatic Packaging Machinery Co
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Filing: 1970-04-27
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Granted: 1972-10-03
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Expires: 1990-04-27
Abstract
Abstract A cast having one or more mounting holes through which a screw may be passed for mounting the casting on a jamb. A pair of upstanding ears are formed with coaxial apertures therein for axial movement of a sliding bar therethrough. The bar is provided with a machined intermediate section which may be positioned between the upstanding ears so that the shackle of a padlock may be positioned about the machined portion to prevent the bar from being withdrawn. Each ear is provided with a threaded bore which receives a screw or bolt so as to control the distance which the bar may be moved by abutting shoulders formed on the bar at its opposite limits of travel. Adjacent one side of the machined portion, and intermediate the shoulders, a cam surface is formed which may be moved past the screw when the lowest portion of the cam is aligned therewith. When the bar is rotated about its axis, the cam surface and the screw will enter into contact to prevent inadvertent axial movement or slippage of the bar. A center punch is formed on the leading end of the bar to aid in locating the centers of bores which must be drilled in a closure member which is locked against movement when the bar extends into such bores.
Inventors
- 👤 Ruth Rosen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:20
CPC Classifications
E; E05; E05C; E05C1/00; E05C1/02; E05C1/04; E05B; E05B67/00; E05B67/38; E05B67/383; Y; Y10; Y10S; Y10S292/00; Y10S292/53; Y10T; Y10T292/00; Y10T292/08; Y10T292/0863; Y10T292/096; Y10T292/1014; Y10T292/1022; Y10T292/1025; Y10T292/1026
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
303 words
A locking device comprising a base member having a pair of upstanding ears at one end thereof and integral therewith, said ears each being substantially coplanar with at least two peripheral edges of said base member and having coaxial apertures therein, means intermediate said ears and passing through said base member for allowing said base member to be fastened to one element of a pair of elements which are to be locked against relative movement, means for preventing said base member from pivoting about said intermediate means, and a bar movement limiting and preventing means in at least one of said ears and extending into said coaxial aperture therein, a bar mounted in said coaxial apertures for cooperation with said movement limiting and preventing means and slidable relative thereto between an extended position in which it extends beyond one of said ears a sufficient distance to engage the second element of a pair of elements which are to be locked against relative movement and a retracted position in which it is withdrawn from such a sufficient distance, said bar having a reduced diameter section, one extremity of which abuts said movement limiting and preventing means in each of said extended and retracted positions and a wedging section of varying diameter, relative to the axis of said bar, within said reduced diameter section and terminating at at least one extremity of said reduced diameter section, and said bar being rotatable between a first position in which said bar is freely slidable between said extended and retracted positions, as limited by said movement limiting and preventing means, and a second position in which said varying diameter section of said bar is wedged against said movement limiting and preventing means, thereby selectively preventing axial movement of said bar when the latter is in said extended position.
Claim 2
Dependent Claim
303 words
A locking device comprising a base member having a pair of upstanding ears at one end thereof and integral therewith, said ears each being substantially coplanar with at least two peripheral edges of said base member and having coaxial apertures therein, means intermediate said ears and passing through said base member for allowing said base member to be fastened to one element of a pair of elements which are to be locked against relative movement, means for preventing said base member from pivoting about said intermediate means, and a bar movement limiting and preventing means in at least one of said ears and extending into said coaxial aperture therein, a bar mounted in said coaxial apertures for cooperation with said movement limiting and preventing means and slidable relative thereto between an extended position in which it extends beyond one of said ears a sufficient distance to engage the second element of a pair of elements which are to be locked against relative movement and a retracted position in which it is withdrawn from such a sufficient distance, said bar having a reduced diameter section, one extremity of which abuts said movement limiting and preventing means in each of said extended and retracted positions and a wedging section of varying diameter, relative to the axis of said bar, within said reduced diameter section and terminating at at least one extremity of said reduced diameter section, and said bar being rotatable between a first position in which said bar is freely slidable between said extended and retracted positions, as limited by said movement limiting and preventing means, and a second position in which said varying diameter section of said bar is wedged against said movement limiting and preventing means, thereby selectively preventing axial movement of said bar when the latter is in said extended position.
Claim 3
Dependent Claim
27 words
The device of claim 1 wherein said bar further includes shackle-receiving means thereon which is positioned intermediate said ears when said bar is in said extended position.
Claim 4
Dependent Claim
27 words
The device of claim 1 wherein said bar further includes shackle-receiving means thereon which is positioned intermediate said ears when said bar is in said retracted position.
Claim 5
Dependent Claim
28 words
The device of claim 1 wherein said bar further includes center punch means thereon for locating bar-receiving aperture centers in an element to be locked by said device.
Claim 6
Dependent Claim
90 words
The device of claim 1 wherein said bar includes means forming a groove about the entire periphery of said bar and so located thereon as to be intermediate said upstanding ears when said bar is in said extended position said groove, said base member, and said ears being so formed relative to one another as to allow a padlock shackle to pass therebetween in a close fitting relationship to lock said bar in said extended position regardless of whether said bar has been rotated to said first or second position.
Claim 7
Dependent Claim
273 words
A locking device for preventing relative movement between a pair of movable elements comprising a base member having a pair of separated upstanding ears thereon, each including a first aperture extending therethrough and coaxial with a similar first aperture in the other of said ears, at least one of said ears also having a second aperture extending from a surface of the ear and intersecting the one of said coaxial apertures therein, and movement limiting means fixed in said second aperture and extending into the one of said first coaxial apertures therein, a bar member extending through said first coaxial apertures and the space between said ears and having a first end which may be extended into one element of the pair of movable elements to prevent such relative movement, a second end including means for gripping said bar member for movement thereof, and an intermediate section comprising a first portion, defined by axially separated extremities thereof, which are intermediate said first and second ends, extending about the periphery of said bar member, which first portion is small enough to pass through said first apertures but too large to permit the extremities thereof to pass said movement limiting means fixed in said second aperture, a second portion, located between the axial extremities of said first portion, which is small enough to pass said means fixed in said second aperture, and a wedging surface extending between said second portion and at least one extremity of said first portion to prevent axial movement of said bar member when said wedging surface is forced into contact with said movement limiting means fixed in said second aperture.
Claim 8
Dependent Claim
273 words
A locking device for preventing relative movement between a pair of movable elements comprising a base member having a pair of separated upstanding ears thereon, each including a first aperture extending therethrough and coaxial with a similar first aperture in the other of said ears, at least one of said ears also having a second aperture extending from a surface of the ear and intersecting the one of said coaxial apertures therein, and movement limiting means fixed in said second aperture and extending into the one of said first coaxial apertures therein, a bar member extending through said first coaxial apertures and the space between said ears and having a first end which may be extended into one element of the pair of movable elements to prevent such relative movement, a second end including means for gripping said bar member for movement thereof, and an intermediate section comprising a first portion, defined by axially separated extremities thereof, which are intermediate said first and second ends, extending about the periphery of said bar member, which first portion is small enough to pass through said first apertures but too large to permit the extremities thereof to pass said movement limiting means fixed in said second aperture, a second portion, located between the axial extremities of said first portion, which is small enough to pass said means fixed in said second aperture, and a wedging surface extending between said second portion and at least one extremity of said first portion to prevent axial movement of said bar member when said wedging surface is forced into contact with said movement limiting means fixed in said second aperture.
Claim 9
Dependent Claim
162 words
A lock to prevent relative movement between two elements comprising a base member having means for supporting a slidable bar for movement relative to said base member so that the locking portion of a slidable bar may be extended from and retracted into said base member and means for limiting the travel of the slidable bar relative to said supporting means, a slidable bar mounted in said supporting means and having a locking portion, a pair of shoulders on said bar for abutment with said limiting means, at least one of said pairs of shoulders having a portion thereon which can pass under said limiting means, and means for wedging said bar against said limiting means upon rotation of said bar from a position in which said at least one of said pair of shoulders can pass under said limiting means toward a position in which said at least one of said pair of shoulders could not pass under said limiting means.
Claim 10
Dependent Claim
162 words
A lock to prevent relative movement between two elements comprising a base member having means for supporting a slidable bar for movement relative to said base member so that the locking portion of a slidable bar may be extended from and retracted into said base member and means for limiting the travel of the slidable bar relative to said supporting means, a slidable bar mounted in said supporting means and having a locking portion, a pair of shoulders on said bar for abutment with said limiting means, at least one of said pairs of shoulders having a portion thereon which can pass under said limiting means, and means for wedging said bar against said limiting means upon rotation of said bar from a position in which said at least one of said pair of shoulders can pass under said limiting means toward a position in which said at least one of said pair of shoulders could not pass under said limiting means.
Claim 11
Dependent Claim
29 words
The device of claim 7 wherein said slidable bar further includes center punch means thereon for locating bar-receiving aperture centers in an element to be locked by said device.
Claim 12
Dependent Claim
28 words
The lock of claim 7 including shackle-receiving means formed on said slidable bar for prohibiting axial movement of said slidable bar when a padlock shackle is positioned therein.
Claim 13
Dependent Claim
37 words
The lock of claim 9 wherein said shackle-receiving comprises at least one recess formed entirely about the periphery of said bar so that a shackle may be positioned thereon regardless of the rotational orientation of said bar.
Claim 14
Dependent Claim
154 words
A lock to prevent relative movement between two elements comprising a base member having means for supporting a slidable bar for movement relative to said base member so that the locking portion of a slidable bar may be extended from and retracted into said base member and means for limiting the travel of the slidable bar relative to said supporting means, a slidable bar mounted in said supporting means and having a locking portion, a pair of shoulders on said bar for abutment with said limiting means, at least one of said pair of shoulders having a first portion which will abut and not pass under said limiting means and a second portion which will pass under and not abut said limiting means, and means for wedging said bar into a fixed position within said support means when said second portion is passed under said limiting means and said bar is rotated relative thereto.
Claim 15
Dependent Claim
154 words
A lock to prevent relative movement between two elements comprising a base member having means for supporting a slidable bar for movement relative to said base member so that the locking portion of a slidable bar may be extended from and retracted into said base member and means for limiting the travel of the slidable bar relative to said supporting means, a slidable bar mounted in said supporting means and having a locking portion, a pair of shoulders on said bar for abutment with said limiting means, at least one of said pair of shoulders having a first portion which will abut and not pass under said limiting means and a second portion which will pass under and not abut said limiting means, and means for wedging said bar into a fixed position within said support means when said second portion is passed under said limiting means and said bar is rotated relative thereto.
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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) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |