US4060267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable door latch
Assignee: Individual
•
Filing: 1976-06-07
•
Granted: 1977-11-29
•
Expires: 1996-06-07
Abstract
Abstract The bolt of a door latch or lock is made laterally adjustable to ensure both proper latching operation upon closing the door and also reasonably firm engagement of the catch with the fixed stop to ensure firm holding without vibratory or rattling movement. The adjustment is accomplished by adjusting the angle of emergence of the bolt with respect to the latch structure, e.g., the bolt case. The adjustment capability allows greater tolerance in the mounting of the latch upon the door.
Inventors
- 👤 Paul Monfardini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:32
CPC Classifications
E; E05; E05C; E05C1/00; E05C1/08; E05C1/12; E05C1/14; E05C1/145; Y; Y10; Y10S; Y10S292/00; Y10S292/31; Y10S292/57; Y10S292/60; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0994; Y10T292/1014; Y10T292/102
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
151 words
In a hinged door latch comprising a bolt case adapted to be mounted upon a door, a bolt arranged for axial reciprocating movement within said case and including a catch at the forward end thereof, and means for moving said bolt in extension and retraction to latch and unlatch the door, the improvement which comprises means affixed to and carried by said bolt for adjusting the angle of emergence of said bolt whereby to laterally adjust the extended position of said catch, said means comprising a post mounted for axial adjustment transversely of said bolt at the rear end thereof, said post extending in sliding relationship between top and bottom inner surfaces of the bolt case, and a fulcrum element mounted transversely of the bolt in the forward portion thereof rearwardly of the catch, said fulcrum element extending in sliding relationship between top and bottom inner surfaces of the bolt case.
Claim 2
Dependent Claim
151 words
In a hinged door latch comprising a bolt case adapted to be mounted upon a door, a bolt arranged for axial reciprocating movement within said case and including a catch at the forward end thereof, and means for moving said bolt in extension and retraction to latch and unlatch the door, the improvement which comprises means affixed to and carried by said bolt for adjusting the angle of emergence of said bolt whereby to laterally adjust the extended position of said catch, said means comprising a post mounted for axial adjustment transversely of said bolt at the rear end thereof, said post extending in sliding relationship between top and bottom inner surfaces of the bolt case, and a fulcrum element mounted transversely of the bolt in the forward portion thereof rearwardly of the catch, said fulcrum element extending in sliding relationship between top and bottom inner surfaces of the bolt case.
Claim 3
Dependent Claim
35 words
Structure in accordance with claim 1 wherein a second fulcrum element is mounted in the bolt, the two fulcrum elements being spaced apart along a line at right angles to the axis of said bolt.
Claim 4
Dependent Claim
19 words
Structure in accordance with claim 2 wherein the two fulcrum elements are transversely adjustable with respect to the bolt.
Claim 5
Dependent Claim
25 words
Structure in accordance with claim 3 wherein holes are provided in a wall of the bolt case for access to the two adjustable fulcrum elements.
Claim 6
Dependent Claim
44 words
Structure in accordance with claim 1 wherein the post is screw mounted in the bolt whereby its position is adjustable by turning said post and a hole is provided in a wall of the case for access to said post for adjusting the same.
Claim 7
Dependent Claim
26 words
Structure in accordance with claim 5 wherein at least the end surfaces of the post and fulcrum element are formed by a self lubricating plastic material.
Claim 8
Dependent Claim
155 words
In a hinged door latch comprising a bolt case adapted to be mounted upon a door, a bolt arranged for axial reciprocating movement within said case and including a catch at the forward end thereof, and means for moving said bolt in extension and retraction to latch and unlatch the door, the improvement which comprises means affixed to and carried by said bolt for adjusting the angle of emergence of said bolt whereby to laterally adjust the extended position of said catch, said means comprising at least one post mounted for axial adjustment transversely of said bolt at the forward end thereof rearwardly of said catch, said post extending in sliding relationship between top and bottom inner surfaces of the bolt case, and a spacing element mounted in the bolt in fixed relation thereto at the rear end thereof and extending between top and bottom inner surfaces of the bolt case in sliding relationship therewith.
Claim 9
Dependent Claim
155 words
In a hinged door latch comprising a bolt case adapted to be mounted upon a door, a bolt arranged for axial reciprocating movement within said case and including a catch at the forward end thereof, and means for moving said bolt in extension and retraction to latch and unlatch the door, the improvement which comprises means affixed to and carried by said bolt for adjusting the angle of emergence of said bolt whereby to laterally adjust the extended position of said catch, said means comprising at least one post mounted for axial adjustment transversely of said bolt at the forward end thereof rearwardly of said catch, said post extending in sliding relationship between top and bottom inner surfaces of the bolt case, and a spacing element mounted in the bolt in fixed relation thereto at the rear end thereof and extending between top and bottom inner surfaces of the bolt case in sliding relationship therewith.
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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) | 1980-11-28 | 1981-05-30 | 1981-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-28 | 1985-05-30 | 1985-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-28 | 1989-05-30 | 1989-11-29 | $7700.00 | Window Closed / Lapsed |