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US4834413A · kind A · utility
21Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1987 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Nov 30, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32459
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A collar or body portion (40) has an inner surface (42) that defines a circular bore (44) therethrough. A cam surface (46) is recessed into the collar portion from the circular bore. The collar is disposed with a tubular member (22) extending through the circular bore with a spring biased detent (30) engaging the cam surface. A series of upper plateaus or segments (60) and lower plateaus or segments (62) hold the detent against the cam surface as the collar is rotated. A handle portion (64) facilitates manually rotating the collar to depress or release the spring biased detent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.