US4566357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal tool-holder
Assignee: Individual
•
Filing: 1983-12-23
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Granted: 1986-01-28
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Expires: 2003-12-23
Abstract
Abstract This invention relates to a universal tool-holder, usable as an accessory in tightening or untightening screwable members by a suitable tool. The problem posed is to improve the leverage and manipulation of the tool. In accordance with the invention, the tool-holder comprises a hollow grip (1), and a rotary head (3) secured axially to the grip (1) for rotation relative to the grip, the rotary head (3) presenting an axial aperture (5) and radial aperture (7) which receive and mate with an end of the tool, a locking screw (9) being screwed into a tapped radial aperture (10) in the head (3) to engage and lock the tool in the head. The grip may then be used as a lever handle or a crank handle to apply torque to the tool. The invention is especially applicable to such tools as a box spanner, a pipe spanner or an Allen key.
Inventors
- 👤 Patricia Carossino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:19
CPC Classifications
B; B25; B25G; B25G1/00; B25G1/005; B25B; B25B15/00; B25B15/001; B25B15/004; B25B15/008; B25B23/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
128 words
A universal tool holder for receiving and applying torque to a tool for tightening or untightening a screwable member, comprising a grip member defining an axial bore, a rotary head member secured axially to said grip member in said bore and freely rotatable about the axis of said grip member relative to said grip member without relative axial movement between said head and grip members, said head member presenting an axial aperture opening along the axis of said grip member and at least one radial aperture opening normal to the axis of said grip member, each of said apertures being adapted to receive alternatively a part of said tool, and locking means for releasably engaging said part of said tool in the aperture to secure the tool therein.
Claim 2
Dependent Claim
128 words
A universal tool holder for receiving and applying torque to a tool for tightening or untightening a screwable member, comprising a grip member defining an axial bore, a rotary head member secured axially to said grip member in said bore and freely rotatable about the axis of said grip member relative to said grip member without relative axial movement between said head and grip members, said head member presenting an axial aperture opening along the axis of said grip member and at least one radial aperture opening normal to the axis of said grip member, each of said apertures being adapted to receive alternatively a part of said tool, and locking means for releasably engaging said part of said tool in the aperture to secure the tool therein.
Claim 3
Dependent Claim
81 words
A tool holder as claimed in claim 1 wherein said rotary head member is of generally circular section and presents an exposed end face, and a neck portion accommodated in said bore, said neck portion presenting a tapped orifice and said grip member including a bolt screwed into said tapped orifice and presenting a head portion, said bore presenting an abutment against which said head portion of said bolt bears, whereby to secure said rotary head member to said grip member.
Claim 4
Dependent Claim
20 words
A tool holder as claimed in claim 1 wherein said axial aperture and said radial aperture are of non-cylindrical section.
Claim 5
Dependent Claim
20 words
A tool holder as claimed in claim 3 wherein said axial aperture and said radial aperture are of polygonal section.
Claim 6
Dependent Claim
53 words
A tool holder as claimed in claim 1 wherein said rotary head member presents a tapped aperture extending generally perpendicular to said axial aperture and said radial aperture, said locking means including a screw member for screwing in said tapped aperture to engage said part of said tool, whereby to secure the tool.
Claim 7
Dependent Claim
193 words
A tool set comprising a tool and a universal tool holder for receiving and applying torque to said tool for tightening or untightening a screwable member, said universal tool holder comprising a grip member defining an axial bore, a rotary head member secured axially to said grip member in said bore and freely rotatably about the axis of said grip member relative to said grip member without relative axial movement between said head and grip members, said head member presenting an axial aperture opening along the axis of said grip member and at least one radial aperture opening normal to the axis of said grip member, each of said apertures being adapted to receive alternately a part of said tool, and locking means for releasably engaging said part of said tool in the aperture to secure the tool therein, said part of said tool being inserted in one of said axial aperture or radial aperture and secured therein by said locking means, said tool part having a non-circular cross sectional configuration, said axial and radial apertures being complementary in configuration to said tool to prevent rotation of said tool relative to said aperture.
Claim 8
Dependent Claim
193 words
A tool set comprising a tool and a universal tool holder for receiving and applying torque to said tool for tightening or untightening a screwable member, said universal tool holder comprising a grip member defining an axial bore, a rotary head member secured axially to said grip member in said bore and freely rotatably about the axis of said grip member relative to said grip member without relative axial movement between said head and grip members, said head member presenting an axial aperture opening along the axis of said grip member and at least one radial aperture opening normal to the axis of said grip member, each of said apertures being adapted to receive alternately a part of said tool, and locking means for releasably engaging said part of said tool in the aperture to secure the tool therein, said part of said tool being inserted in one of said axial aperture or radial aperture and secured therein by said locking means, said tool part having a non-circular cross sectional configuration, said axial and radial apertures being complementary in configuration to said tool to prevent rotation of said tool relative to said aperture.
Claim 9
Dependent Claim
41 words
A tool set as claimed in claim 6 wherein said tool comprises a long arm and a short arm, and each of said axial aperture and said radial aperture is adapted to receive alternatively said long arm and said short arm.
Claim 10
Dependent Claim
27 words
A tool set as claimed in claim 7 wherein said tool is a hexagonal Allen key, and said axial and radial apertures are of matching hexagonal section.
Claim 11
Dependent Claim
54 words
A tool set as claimed in claim 6 wherein said tool is a screwdriver, said part of said tool being a shaft portion of said screwdriver, said radial aperture extending through said rotary head member, whereby said tool holder may be positioned at an intermediate position on said shaft portion to apply torque thereto.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-27 | 1989-07-29 | 1990-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-27 | 1993-07-29 | 1994-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-27 | 1997-07-29 | 1998-01-28 | $7700.00 | Window Closed / Lapsed |