US3662429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door pivot assembly
Assignee: Lawrence Brothers Inc
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Filing: 1970-09-23
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Granted: 1972-05-16
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Expires: 1990-09-23
Abstract
Abstract The present invention relates generally to pivot assemblies for swinging doors, and more particularly to improvements in pivot assemblies for use with door members, the pivoted vertical edge of which, when the door is in closed position, is in substantial abutting relation with a vertical door frame. An embodiment of the invention disclosed herein includes a crank arm, a link member having one end pivotally connected with the crank arm, mounting means for supporting the crank arm and link member upon a horizontal door frame member. Fixed pivot means is associated with the mounting means and is connected with the opposite extremity of the link. Crank actuating means attachable to the corner of the door member is coupled with the crank member whereby when the door member swings about the crank axis in a given direction the vertical door edge will move away from the door frame.
Inventors
- 👤 Larry K Johnson
- 👤 Delmar D Mcninch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:47
CPC Classifications
E; E05; E05D; E05D3/00; E05D3/02; E05D3/022; E05D7/00; E05D7/08; E05D7/081; E05D15/00; E05D15/48; E05D15/54; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
142 words
A pivot assembly for a door member, the pivoted vertical edge of which, when the door member is in closed position, is in substantial abutting relation with a vertical door frame member, said assembly including crank means, link means having one extremity pivotally connected with the extremity of said crank means, mounting means for supporting said crank and link means upon a horizontal door frame member, fixed pivot means associated with said mounting means, the opposite extremity of said link means being pivotally coupled with said fixed pivot means, crank actuating means attachable to the corner portion of a door member, and means coupling said crank and crank actuating means whereby when an associated door member swings about the crank axis in a given direction, said crank and link means coact to move the vertical door edge away from the door frame.
Claim 2
Dependent Claim
142 words
A pivot assembly for a door member, the pivoted vertical edge of which, when the door member is in closed position, is in substantial abutting relation with a vertical door frame member, said assembly including crank means, link means having one extremity pivotally connected with the extremity of said crank means, mounting means for supporting said crank and link means upon a horizontal door frame member, fixed pivot means associated with said mounting means, the opposite extremity of said link means being pivotally coupled with said fixed pivot means, crank actuating means attachable to the corner portion of a door member, and means coupling said crank and crank actuating means whereby when an associated door member swings about the crank axis in a given direction, said crank and link means coact to move the vertical door edge away from the door frame.
Claim 3
Dependent Claim
34 words
A pivot assembly for a door member as set forth in claim 1, wherein the crank means is shiftable laterally with respect to the crank axis in response to swinging of the door member.
Claim 4
Dependent Claim
38 words
A pivot assembly for a door member as set forth in claim 1, wherein means for coupling said crank means and crank actuating means includes a shank member extending into a complementary aperture in the crank actuating means.
Claim 5
Dependent Claim
44 words
A pivot assembly for a door member as set forth in claim 1, wherein means for coupling the crank means and crank actuating means includes a non-circular shank member extending from the crank member into a complementary non-circular aperture in the crank actuating means.
Claim 6
Dependent Claim
64 words
A pivot assembly for a door member as set forth in claim 1, wherein the crank actuating means includes a plate member adapted for attachment to the horizontal edge of a doOr member, and the means for coupling said crank actuating plate member with said crank means includes a shank member extending from said crank means into a complementary aperture in said plate member.
Claim 7
Dependent Claim
42 words
A pivot assembly for a door member as set forth in claim 1, wherein the mounting means includes one section for accommodating said crank and link means and another section provided with a guideway for guiding lateral movement of said crank means.
Claim 8
Dependent Claim
34 words
A pivot assembly for a door member as set forth in claim 6, wherein the two sections of the mounting means are in the nature of superimposed plate members secured together as a unit.
Claim 9
Dependent Claim
123 words
A pivot assembly for a door member, the pivoted vertical edge of which, when the door member is in closed position, is in substantial abutting relation with a vertical door frame member, said assembly including cooperative crank and link means, mounting means for supporting said crank and link means upon a horizontal door frame member, pivot means for said link means associated with said mounting means, crank actuating means attachable to the corner portion of a door member, and means coupling said crank and link means with said crank actuating means whereby when an associated door member swings about the crank axis in a given direction, said crank and link means coact to move the vertical door edge away from the door frame.
Claim 10
Dependent Claim
123 words
A pivot assembly for a door member, the pivoted vertical edge of which, when the door member is in closed position, is in substantial abutting relation with a vertical door frame member, said assembly including cooperative crank and link means, mounting means for supporting said crank and link means upon a horizontal door frame member, pivot means for said link means associated with said mounting means, crank actuating means attachable to the corner portion of a door member, and means coupling said crank and link means with said crank actuating means whereby when an associated door member swings about the crank axis in a given direction, said crank and link means coact to move the vertical door edge away from the door frame.
Claim 11
Dependent Claim
37 words
A pivot assembly for a door member as set forth in claim 8, wherein the means coupling the crank and link means with the crank actuating means includes a crank shaft engageable with said crank actuating means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |