Latch mechanism for an access door
US5261712A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 26, 1992 |
| Grant date | Nov 16, 1993 |
| Priority date | — |
| Expiry date | Aug 26, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/1061
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A latch mechanism attaches an access door to a frame. The frame has a horizontally extending ledge with an opening formed therein. A pin is rigidly attached to the frame spaced apart from the opening. A latch opening is formed in the access door. A lever is pivotally mounted on the pin and has an end which integrally forms a wedge-shaped latch member, and a part of the lever engages the frame to form a pivot axis about which the lever pivots. A spring is mounted on the pin and is biassed to hold the lever in a position wherein the latch member is received by the latch opening when the door is in a closed position. The lever is comprised of a flat metal strip including a bent portion which pivotally engages the frame and includes a first section which extends between the latch member and the pivot axis. The lever includes a second section which is positioned on the other side of the pivot axis and which is normally spaced apart from the frame. The latch member extends through the opening in the frame and into the latch opening in a closed position of the latch mechanism. The latch member remains at least partially received by the opening in the frame at all times, and the latch open…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.