Patent US4215601A successfully refreshed from Google Patents.
US4215601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible shaft tool head
Assignee: Individual
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Filing: 1979-03-16
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Granted: 1980-08-05
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Expires: 1999-03-16
Abstract
Abstract A tool head, for attachment to a flexible shaft drive, including a housing, tool drive connector, start-stop switch, a lock-out ratchet and a connection to a combined flexible shaft and an electric conduit.
Inventors
- 👤 Steven R. Mann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:06
CPC Classifications
B; B25; B25B; B25B27/00; B25F; B25F3/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
133 words
The combination of a tool head and a flexible drive shaft, comprising: (a) a said tool head including a housing with a journalled shaft having one end connected to the flexible drive shaft and the other end having a gear secured to a rotary tool connector, (b) said tool head having at least one electric switch including a trigger switch operating a remote electric motor and an electric connection receptacle connected therewith, (c) a ratchet pawl mounted in said housing for ratcheting said gear for rotating the rotary connector for manual operation of said tool head, and (d) said flexible drive shaft including a housing for the flexible drive shaft and a housing attached electric conduit providing remote control of said motor to which said tool head and said flexible drive are attached.
Claim 2
Dependent Claim
133 words
The combination of a tool head and a flexible drive shaft, comprising: (a) a said tool head including a housing with a journalled shaft having one end connected to the flexible drive shaft and the other end having a gear secured to a rotary tool connector, (b) said tool head having at least one electric switch including a trigger switch operating a remote electric motor and an electric connection receptacle connected therewith, (c) a ratchet pawl mounted in said housing for ratcheting said gear for rotating the rotary connector for manual operation of said tool head, and (d) said flexible drive shaft including a housing for the flexible drive shaft and a housing attached electric conduit providing remote control of said motor to which said tool head and said flexible drive are attached.
Claim 3
Dependent Claim
28 words
The combination of claim 1 wherein said housing includes a second electric switch connected to said receptacle for changing polarity of the attached motor for reversing the same.
Claim 4
Dependent Claim
33 words
The combination of claim 1, wherein said one end arranged for connection to the flexible drive shaft includes a gear train for providing at least two speed levels for said rotary tool connector.
Claim 5
Dependent Claim
38 words
The combination of claim 1, wherein said connection to a flexible drive shaft includes a connector between said journalled shaft and said flexible drive shaft, and releasable housing means securing said shaft housing to said tool head housing.
Claim 6
Dependent Claim
20 words
The combination of claim 1, wherein said electric conduit includes a make connector and said housing includes a female receptacle.
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) | 1983-08-05 | 1984-02-04 | 1984-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-05 | 1988-02-04 | 1988-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-05 | 1992-02-04 | 1992-08-05 | $7700.00 | Window Closed / Lapsed |