Patent US4535658A successfully refreshed from Google Patents.
US4535658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Socket bit holder
Assignee: Western Pacific Industries Inc
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Filing: 1982-03-05
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Granted: 1985-08-20
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Expires: 2002-03-05
Abstract
Abstract A socket bit holder formed with a circumferential groove in a bit holder opening of the socket, the holder arranged to receive a tool bit having peripheral notch means, and a split ring in the circumferential groove arranged to engage the notch means of the tool bit whereby the bit will be maintained in the holder.
Inventors
- 👤 Paul J. Molinari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:40
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/0007; B25B23/0035
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
98 words
A socket bit holder comprising a socket member having a circumferential groove near one end of a tool bit opening formed in the socket member, said groove having a 45° surface tapering toward the end of the socket member, a tool bit adapted for insertion in the tool bit opening, a plurality of notches formed on the tool bit which notches are arranged to be adjacent the circumferential groove when the tool bit is in the socket member, and a resilient ring means positioned in the circumferential groove which ring is arranged to engage the tool bit notches.
Claim 2
Dependent Claim
98 words
A socket bit holder comprising a socket member having a circumferential groove near one end of a tool bit opening formed in the socket member, said groove having a 45° surface tapering toward the end of the socket member, a tool bit adapted for insertion in the tool bit opening, a plurality of notches formed on the tool bit which notches are arranged to be adjacent the circumferential groove when the tool bit is in the socket member, and a resilient ring means positioned in the circumferential groove which ring is arranged to engage the tool bit notches.
Claim 3
Dependent Claim
23 words
A socket bit holder in accordance with claim 1, wherein the resilient ring means is a flat split ring having inwardly projecting teeth.
Claim 4
Dependent Claim
37 words
A socket bit holder in accordance with claim 2, said ring is metal and the inwardly projecting teeth are arranged at an angle approximately 15° relative to the plane of the flat portion of the split ring.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-19 | 1989-02-18 | 1989-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-19 | 1993-02-18 | 1993-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-19 | 1997-02-18 | 1997-08-20 | $7700.00 | Window Closed / Lapsed |