Center case assembly, and a universal, center case sub-assembly
US4741563A · kind A · utility
38Cited by
12References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 7, 1986 |
| Grant date | May 3, 1988 |
| Priority date | — |
| Expiry date | Apr 7, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/0975
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Central to the invention is a universal, center case sub-assembly from which, by adding components thereto, one may fabricate a rim style center case assembly, or a concealed-vertical style center case assembly, or a surface-vertical style center case assembly, or a combination rim and vertical style center case assembly, for a panic-type exit device. Besides minimizing the number of diverse components and parts required for the fabrication of the aforesaid center case assembly styles, the universal sub-assembly comprises an improved design which offers a marked mechanical/leverage advantage to the trim linkage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.