US4235269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turning tool with tip storage and retractable lever
Assignee: Individual
•
Filing: 1978-07-31
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Granted: 1980-11-25
•
Expires: 1998-07-31
Abstract
Abstract A screwdriver or like hand tool has interchangeable tips or bits storable in a groove or recess in a handle, and a foldable auxiliary lever for increased torque which is pivotable into another recess in the handle. The interchangeable tips or bits and the lever are magnetically releasibly retained in their recesses. Bits fit into and are magnetically retained in a socket at the end of a shaft rotatably mounted in the handle. The lever in its inwardly pivoted storage position keys the shaft to the handle. A reversible ratchet is provided. The tool may be a screwdriver or a tool for wrench sockets, screw extractors, or other types of bits or tips.
Inventors
- 👤 Hans Kraus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:26
CPC Classifications
B; B25; B25G; B25G1/00; B25G1/08; B25G1/085; B25B; B25B15/00; B25B15/02; B25B15/04; B25F; B25F1/00; B25F1/02; B25G1/005
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
207 words
A turning tool comprising: a handle rotatably mounted on a shaft having an axis, a housing rotatably mounted on the shaft, a ferrule coaxial with and secured to the shaft to rotate therewith, releasable means in the housing cooperable with the secured ferrule to drive the shaft, a first recess in the handle parallel to said axis and having an open end, a plurality of interchangeable tips storable in the first recess in end-to-end relation, handle magnet means protruding from the handle to partially overly said open end of the first recess and to contact and releasibly retain an end one of the tips adjacent the recess open end in position for manual grasping, tip retaining means at the end of the shaft for releasibly holding a selected one of said tips, a lever pivotally connected to the housing and pivotable between a retracted storage position and a radially extended service position, and a second recess in the handle radially spaced from and parallel to the first recess to receive the lever in its retracted storage position wherein the lever is substantially within the recess, said handle magnet means being positioned in the handle magnetically to engage and releasibly retain the lever in its retracted storage position.
Claim 2
Dependent Claim
207 words
A turning tool comprising: a handle rotatably mounted on a shaft having an axis, a housing rotatably mounted on the shaft, a ferrule coaxial with and secured to the shaft to rotate therewith, releasable means in the housing cooperable with the secured ferrule to drive the shaft, a first recess in the handle parallel to said axis and having an open end, a plurality of interchangeable tips storable in the first recess in end-to-end relation, handle magnet means protruding from the handle to partially overly said open end of the first recess and to contact and releasibly retain an end one of the tips adjacent the recess open end in position for manual grasping, tip retaining means at the end of the shaft for releasibly holding a selected one of said tips, a lever pivotally connected to the housing and pivotable between a retracted storage position and a radially extended service position, and a second recess in the handle radially spaced from and parallel to the first recess to receive the lever in its retracted storage position wherein the lever is substantially within the recess, said handle magnet means being positioned in the handle magnetically to engage and releasibly retain the lever in its retracted storage position.
Claim 3
Dependent Claim
41 words
A tool according to claim 1, wherein: said handle magnet means extends diametrically of the handle with one end portion thereof releasibly retaining said lever and the other end portion thereof releasibly retaining said tip adjacent the first recess open end.
Claim 4
Dependent Claim
39 words
A tool according to claim 1 or claim 2, wherein: the lever in its retracted storage position keys the housing to the handle, and in its radially extended service position releases the handle for rotation relative to the shaft.
Claim 5
Dependent Claim
49 words
A tool according to claim 1 or claim 2, wherein: the respective tips have polygonal portions, and said bit retainer comprises a non-magnetic sleeve at the end of the shaft defining a bit-receiving recess of polygonal cross-section, and shaft magnet means adjacent the sleeve to releasibly retain a bit.
Claim 6
Dependent Claim
23 words
A tool according to claim 1 or claim 2, wherein: said first recess is undercut with inwardly extending lips to retain said tips.
Claim 7
Dependent Claim
38 words
A tool according to claim 1 or claim 2, wherein: the handle has a reduced portion defining a finger space adjacent said first recess open end to provide for manual grasping of said end one of the tips.
Claim 8
Dependent Claim
62 words
A tool according to claim 6, wherein: said second recess has an open end from which an outer end portion of the lever extends when the lever is in said retracted storage position, and said finger space defined by the handle reduced portion is adjacent to the second recess open end to provide for manual grasping of the lever outer end portion.
Claim 9
Dependent Claim
49 words
A tool according to claim 1, wherein: upon manual movement of said end one of the tips outward from the open end of the first recess said end one of said tips magnetically attracts the next adjacent tip to move the latter into the end position for manual grasping.
Claim 10
Dependent Claim
49 words
A tool according to claim 5, wherein: upon manual movement of said end one of the tips outward from the open end of the first recess said end one of said tips magnetically attracts the next adjacent tip to move the latter into the end position for manual grasping.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-25 | 1984-05-26 | 1984-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-25 | 1988-05-26 | 1988-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-25 | 1992-05-26 | 1992-11-25 | $7700.00 | Window Closed / Lapsed |