Protecting and sealing cap
US4676084A · kind A · utility
19Cited by
10References
34Claims
0Family size
Inventor
Key dates
| Filing date | Apr 17, 1986 |
| Grant date | Jun 30, 1987 |
| Priority date | — |
| Expiry date | Apr 17, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/48
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Protecting and sealing cap for the open end of a ferrule, such as a ferrule at the key receiving end of a lock, with a pair of opposed openings through the wall thereof. The cap is cup-shaped with a tubular wall for encircling the ferrule and an end wall at one end of the tubular wall. A stem projects from the end wall toward the opposite end of the tubular wall and engages with a retainer inserted through the ferrule openings so that the cap cannot be removed without fracturing the cap or the retainer. Several stem, cap and retainer configurations are disclosed, and the retainer may be secured to the cap by a flexible cord.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.