Interlocking cross tee
US4785603A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 28, 1986 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Nov 28, 2006 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B9/122
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In a suspended ceiling grid structure adapted to support ceiling tiles or the like, connecting apparatus between ceiling grid inverted T main and cross members disposed at right angles to each other and having upright central fins and bottom horizontal flanges comprise a tongue extending from each end of the cross members, a locking tab formed in the tongue of the cross members that is V-shaped in cross section and contacts the web of the main member when a cross member has been inserted through a slot in the main member, an opening in the tongue of the cross member that allows the locking tab to flex back when the cross member is inserted through a slot in the main member, a fingernail and fingernail interlocking pocket formed in each end of the cross member to interlock oppositely disposed cross members together and an interlock release pocket formed in the bottom of the fingernail interlocking pocket to disengage interlocked cross members without damage to either cross member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.