Patent US3541516A successfully refreshed from Google Patents.
US3998481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Draw and pull latch
Assignee: 3M Co
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Filing: 1975-05-01
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Granted: 1976-12-21
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Expires: 1995-05-01
Abstract
Abstract A draw and pull latch consisting of a base plate for attachment to a cabinet, a body pivoted at one end on the base plate and normally covering the base plate, and a draw and pull nose pivoted on the body parallel to and spaced from the body-base plate pivot. The body carries a pivotal latching plate aligned with at least one latching hook on the base plate and urged by a torsion spring to a latching position. In the fully latched position the draw and pull nose pivot axis is above a plane through the body-base plate pivot axis and the keeper engagement by the draw and pull nose so that the latch will urge itself to a fully open position when the latch plate is disengaged from the latching hook.
Inventors
- 👤 Leo E. Anthone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:47
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/10; E05C19/12; E05C19/14; E05B; E05B67/00; E05B67/38; E05B67/383; Y; Y10; Y10S; Y10S292/00; Y10S292/49; Y10T; Y10T292/00; Y10T292/08; Y10T292/0886; Y10T292/0887; Y10T292/089; Y10T292/0911; Y10T292/0913; Y10T292/0914; Y10T292/0917; Y10T292/0918; Y10T292/0945; Y10T292/0951; Y10T292/0954; Y10T292/20
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
368 words
A draw and pull latch comprising: a rectangular base plate for attachment to one portion of the structure to be latched, said base plate at one end being formed along its two opposed edges with similar upstanding pivot flanges, being formed at its opposite end with at least one upstanding latching hook and being formed intermediate its end with an upstanding locking flange having an aperture therethrough, a rectangular body having a top wall, two depending side walls and one depending end wall, pivoted at its open end on said base plate on the outside of said base plate pivot flanges, said body extending over and covering said base plate in the latched position and being formed with an aperture in one side wall which, in the latched position, is in alignment with said locking flange aperture to permit padlocking of said latch through said aligned apertures, a latching plate pivoted on said body and formed with a latching flange in alignment with and opposed to said latching hook on said base plate, said latching plate being resiliently urged to a latching position by a torsion spring and having its pivot extend through said body and there formed for engagement for pivoting said latching plate to an unlatched position against said torsion spring, and a draw and pull nose pivoted at one end on the outside of the opposed body walls adjacent the pivot axis of said body on said base plate, the pivot axis of said draw and pull nose being spaced from the open end of the body further than and parallel to the body pivot axis on said base plate, said nose covering the open end of said body and having a depending end wall turned back toward its opposed end for engaging a keeper on the structure to be latched, a plane through the keeper engaging area on said end wall and the pivot axis of said body on said base plate lying between the pivot axis of said draw and pull nose on said base plate when said latch is in a fully latched position with said nose engaging a keeper and said latching hook engaging said latching flange of said latching plate.
Claim 2
Dependent Claim
368 words
A draw and pull latch comprising: a rectangular base plate for attachment to one portion of the structure to be latched, said base plate at one end being formed along its two opposed edges with similar upstanding pivot flanges, being formed at its opposite end with at least one upstanding latching hook and being formed intermediate its end with an upstanding locking flange having an aperture therethrough, a rectangular body having a top wall, two depending side walls and one depending end wall, pivoted at its open end on said base plate on the outside of said base plate pivot flanges, said body extending over and covering said base plate in the latched position and being formed with an aperture in one side wall which, in the latched position, is in alignment with said locking flange aperture to permit padlocking of said latch through said aligned apertures, a latching plate pivoted on said body and formed with a latching flange in alignment with and opposed to said latching hook on said base plate, said latching plate being resiliently urged to a latching position by a torsion spring and having its pivot extend through said body and there formed for engagement for pivoting said latching plate to an unlatched position against said torsion spring, and a draw and pull nose pivoted at one end on the outside of the opposed body walls adjacent the pivot axis of said body on said base plate, the pivot axis of said draw and pull nose being spaced from the open end of the body further than and parallel to the body pivot axis on said base plate, said nose covering the open end of said body and having a depending end wall turned back toward its opposed end for engaging a keeper on the structure to be latched, a plane through the keeper engaging area on said end wall and the pivot axis of said body on said base plate lying between the pivot axis of said draw and pull nose on said base plate when said latch is in a fully latched position with said nose engaging a keeper and said latching hook engaging said latching flange of said latching plate.
Claim 3
Dependent Claim
30 words
The latch of claim 1 including a spring between said base plate and said body resiliently urging them to pivot to an unlatched position to assist in opening said latch.
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) | 1979-12-21 | 1980-06-21 | 1980-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-21 | 1984-06-21 | 1984-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-21 | 1988-06-21 | 1988-12-21 | $7700.00 | Window Closed / Lapsed |