Patent US5488728A successfully refreshed from Google Patents.
Patent US4852918A successfully refreshed from Google Patents.
US4852918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable latch bolt mechanism
Assignee: Individual
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Filing: 1988-01-22
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Granted: 1989-08-01
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Expires: 2008-01-22
Abstract
Abstract An adjustable latch bolt mechanism is mountable on a door for aligning a latch bolt with an opening in a strike plate on a facing door jamb. The latch bolt mechanism comprises a latch body movable in one direction to a normal extended position causing a latch bolt supported by and slidably mounted at one end of the latch body to engage the opening in the strike plate. A coupling mechanism couples the latch bolt to the latch body for slidably adjusting the latch bolt for movement in a direction transverse to the one direction to a selected position in which the latch bolt is in alignment with the strike plate opening.
Inventors
- 👤 Charles H. Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:27
CPC Classifications
E; E05; E05B; E05B63/00; E05B63/0056; Y; Y10; Y10S; Y10S292/00; Y10S292/60; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0977; Y10T292/1097
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
109 words
An adjustable latch bolt mechanism mountable on a door for aligning a latch bolt with a strike plate opening in a strike plate on a facing door jamb, comprising: a latch body reciprocally movable in one direction toward the strike plate opening; a latch bolt supported by and mounted at an end of the latch body for movement in the one direction for engaging the strike plate; and means coupling the latch bolt to the latch body for moving the latch bolt relative to the latch body in a transverse direction to a selected adjusted position in which the latch bolt is in alignment with the strike plate opening.
Claim 2
Dependent Claim
109 words
An adjustable latch bolt mechanism mountable on a door for aligning a latch bolt with a strike plate opening in a strike plate on a facing door jamb, comprising: a latch body reciprocally movable in one direction toward the strike plate opening; a latch bolt supported by and mounted at an end of the latch body for movement in the one direction for engaging the strike plate; and means coupling the latch bolt to the latch body for moving the latch bolt relative to the latch body in a transverse direction to a selected adjusted position in which the latch bolt is in alignment with the strike plate opening.
Claim 3
Dependent Claim
47 words
An adjustable latch bolt mechanism according to claim 1, wherein the coupling means comprises a notch in the latch bolt, and an eccentric cam rotatably mounted on the latch body and insertable within the notch for slidably moving the latch bolt upon rotation of the eccentric cam.
Claim 4
Dependent Claim
44 words
An adjustable latch bolt mechanism according to claim 2, wherein the eccentric cam has a recess therein, and the latch bolt has an opening aligned with the recess through which a tool is insertable into engagement with the recess for rotating the eccentric cam.
Claim 5
Dependent Claim
57 words
An adjustable latch bolt mechanism according to claim 3, and further comprising a hollow housing secured to a door, the latch body is slidably mounted within the housing, and a spring interposed between the housing and latch body for normally biasing the latch body in the one direction and the latch bolt into the strike plate opening.
Claim 6
Dependent Claim
134 words
An adjustable latch bolt mechanism according to claim 1, wherein the latch body comprises a U-shaped frame member having a partially closed end and parallel arms; wherein the closed end has an opening extending therethrough to define a pair of spaced side rails; wherein the latch bolt has grooves on opposite sides thereof for slidably receiving the side rails; wherein a cross-bar is secured between the arms parallel to and spaced from the closed end; wherein the latch bolt has a notch facing the cross-bar; and wherein the coupling means comprises a circular cam mounted within the notch, the cam having an eccentric stub shaft laterally extending from one side thereof and journaled in the cross-bar whereby rotation of the stub shaft rotates the cam and moves the latch bolt in the transverse direction.
Claim 7
Dependent Claim
52 words
An adjustable latch bolt mechanism according to claim 5, wherein the cam has a recess on the opposite side thereof, and wherein the latch bolt has an opening extending therethrough in alignment with the recess in which a tool is insertable into engagement with the recess for rotating the eccentrically mounted cam.
Claim 8
Dependent Claim
58 words
An adjustable latch bolt mechanism according to claim 6, and further comprising a hollow housing secured to a door, the latch body is slidably mounted within the housing, and a spring is interposed between the housing and latch body for normally biasing the latch body in the one direction and the latch bolt into the strike plate opening.
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) | 1992-07-31 | 1993-01-30 | 1993-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-31 | 1997-01-30 | 1997-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-31 | 2001-01-30 | 2001-08-01 | $7700.00 | Window Closed / Lapsed |