US3847423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual spring action self adjusting latch
Assignee: Fairchild Industries Inc
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Filing: 1973-04-02
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Granted: 1974-11-12
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Expires: 1993-04-02
Abstract
Abstract A dual spring action self adjusting latch assembly for holding the lid on a canister or the like in which a pivot pin mounted on the side of the canister for sliding movement in a direction perpendicular to the pin length toward and away from the canister mouth and biased away from the canister mouth, rotatably supports a handle adjacent to one end thereof for movement in one direction from an open position at which a bowed draw hook adapted to flex along its length to increase the effective length thereof and pivotally supported on the handle is out of engagement with the lid first to an intermediate position at which the draw hook falls into engagement with the lid and then in the opposite direction to a closed position at which the handle and the draw hook are substantially parallel to the canister side with the draw hook pivot slightly under the handle pivot firmly to hold the lid in place and in which the moving pivot and flexing draw hook accommodate the relatively large grip range of different installations. The latch is released by again moving the handle in the one direction.
Inventors
- 👤 P Gley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:23
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/10; E05C19/12; E05C19/14; Y; Y10; Y10S; Y10S292/00; Y10S292/49; Y10T; Y10T292/00; Y10T292/08; Y10T292/0911; Y10T292/0913; Y10T292/0914; Y10T292/0917
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
175 words
A latch assembly for securing a pair of members in assembled relationship along a parting line including in combination, a handle, a pivot pin on said handle, a pair of spaced ears on a first one of said members, said ears being formed with parallel slots for receiving said pivot pin to mount said pivot pin on said one member for limited sliding movement toward and away from said parting line along a line perpendicular to the pin length, a spring biasing said pin for movement along the length of said slots toward corresponding ends thereof, and a draw hook pivotally carried by said handle for movement toward and away from said one member, said handle being movable in one direction from a first position at which said drawhook is remote from said one member to an intermediate position at which said drawhook engages the other member positioned in cooperative relationship to said one member and then movable in the other direction back to said first position to draw said members together in assembled relationship.
Claim 2
Dependent Claim
175 words
A latch assembly for securing a pair of members in assembled relationship along a parting line including in combination, a handle, a pivot pin on said handle, a pair of spaced ears on a first one of said members, said ears being formed with parallel slots for receiving said pivot pin to mount said pivot pin on said one member for limited sliding movement toward and away from said parting line along a line perpendicular to the pin length, a spring biasing said pin for movement along the length of said slots toward corresponding ends thereof, and a draw hook pivotally carried by said handle for movement toward and away from said one member, said handle being movable in one direction from a first position at which said drawhook is remote from said one member to an intermediate position at which said drawhook engages the other member positioned in cooperative relationship to said one member and then movable in the other direction back to said first position to draw said members together in assembled relationship.
Claim 3
Dependent Claim
20 words
A latch assembly as in claim 1 in which said drawhook is resilient in the direction of the length thereof.
Claim 4
Dependent Claim
25 words
A latch assembly as in claim 1 in which said drawhook is bowed in the direction of said length and is formed of resilient material.
Claim 5
Dependent Claim
23 words
A latch assembly as in claim 1 including means for limiting the pivotal movement in one direction of said drawhook on said handle.
Claim 6
Dependent Claim
156 words
A latch assembly for securing a lid over the mouth of a container or the like including in combination, a handle, a pivot pin on said handle, a pair of spaced ears on said container, said ears being formed with parallel slots receiving said pivot pin to mount said pivot pin on said container for limited sliding movement toward and away from said mouth along a line perpendicular to the pin length, a spring biasing said pin for movement away from said mouth, and a drawhook pivotally carried by said handle for movement toward and away from said container, said handle being movable in one direction from a first position at which said drawhook is remote from said container to an intermediate position at which said drawhook engages a lid positioned over said container mouth and then movable in the other direction back to said first position to draw said lid down over said container mouth.
Claim 7
Dependent Claim
156 words
A latch assembly for securing a lid over the mouth of a container or the like including in combination, a handle, a pivot pin on said handle, a pair of spaced ears on said container, said ears being formed with parallel slots receiving said pivot pin to mount said pivot pin on said container for limited sliding movement toward and away from said mouth along a line perpendicular to the pin length, a spring biasing said pin for movement away from said mouth, and a drawhook pivotally carried by said handle for movement toward and away from said container, said handle being movable in one direction from a first position at which said drawhook is remote from said container to an intermediate position at which said drawhook engages a lid positioned over said container mouth and then movable in the other direction back to said first position to draw said lid down over said container mouth.
Claim 8
Dependent Claim
24 words
An assembly as in claim 5 in which said drawhook is bowed in the direction of its length and is formed of resilient material.
Claim 9
Dependent Claim
37 words
An assembly as in claim 5 in which said handle is bifurcated to form spaced legs and a base connecting said legs, said base forming a stop for said drawhook in the open condition of the assembly.
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) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |