Patent US3632007A successfully refreshed from Google Patents.
US3632007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door latch
Assignee: Plasson Maagan Michael Industries Ltd
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Filing: 1969-12-04
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Granted: 1972-01-04
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Expires: 1989-12-04
Abstract
Abstract A door and latch particularly for poultry crates, the door being formed with a rectangular-shaped opening in which the latch is movable and is spring urged to its closed position. The latch includes a latching element depending from the inner face of the door and formed with an inturned lip which serves as a camming surface automatically latching the door when closed. The latch further includes a finger piece extending upwardly from the outer face of the door for manually unlatching it against the action of the spring. The latter is constituted by a resilient rod passing through the latch, the opposite ends of the rod being receivable in seats formed in the door on opposite sides of the rectangular opening.
Inventors
- 👤 Itzhak Kantor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:45
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/50; A; A01; A01K; A01K31/00; A01K31/002; B65D45/00; B65D45/02; B65D45/16; E; E05; E05C; E05C1/00; E05C1/08; E05C1/10; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0997
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
205 words
A door and latch therefor, the door being pivotably mountable along one edge and being formed with a rectangular opening adjacent to its opposite, closing edge, the latch including a latch member disposed in said opening, means supporting said latch member for sliding movement in said opening toward and away from said closing edge, and a spring biasing said latch member to the latching position toward said closing edge, said latch member including a latching element depending from one face of said door and formed with an inturned lip, the outer surface of which constitutes a camming surface engageable with a fixed element in the path thereof when the door is closed, for moving the latch away from said closing edge and then permitting the spring to return the latch to automatically latch the door closed, said latch member also including a finger piece extending from the opposite face of the door for manually moving the latch member to the unlatching position against the action of said spring when manually opening the door, said spring comprising a resilient rod passing through said latch member, the opposite ends of said rod being receivable in seats formed in said door on opposite sides of said rectangular opening.
Claim 2
Dependent Claim
205 words
A door and latch therefor, the door being pivotably mountable along one edge and being formed with a rectangular opening adjacent to its opposite, closing edge, the latch including a latch member disposed in said opening, means supporting said latch member for sliding movement in said opening toward and away from said closing edge, and a spring biasing said latch member to the latching position toward said closing edge, said latch member including a latching element depending from one face of said door and formed with an inturned lip, the outer surface of which constitutes a camming surface engageable with a fixed element in the path thereof when the door is closed, for moving the latch away from said closing edge and then permitting the spring to return the latch to automatically latch the door closed, said latch member also including a finger piece extending from the opposite face of the door for manually moving the latch member to the unlatching position against the action of said spring when manually opening the door, said spring comprising a resilient rod passing through said latch member, the opposite ends of said rod being receivable in seats formed in said door on opposite sides of said rectangular opening.
Claim 3
Dependent Claim
37 words
A door and latch as defined in claim 1, wherein said seats are formed with open slots the open sides of which faces said closing edge of the door to facilitate removal and disassembly of the latch.
Claim 4
Dependent Claim
74 words
A door and latch as defined in claim 1, wherein said rectangular opening is circumscribed, on at least the two opposite sides thereof parallel to the movement of the latch member, by a rim of reduced thickness with respect to the bordering areas of the door, said latch member being formed with an integral extension on each side thereof slidable on one face of said rim for guiding the movement of the latch member.
Claim 5
Dependent Claim
35 words
A door and latch as defined in claim 3, further including a pair of separate guide elements each slidable on the opposite face of said rim and in alignment with one of said integral extensions.
Claim 6
Dependent Claim
22 words
A Door and latch as defined in claim 1, wherein said latch member is formed of a single integral piece of plastic.
Claim 7
Dependent Claim
47 words
A poultry crate including a door and latch as defined in claim 1, said crate further including top, bottom and sidewalls, said door being pivotably mounted to the top wall and serving as a closable lid automatically latched closed upon dropping the same onto the top wall.
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) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |