US4945790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-purpose hand tool
Assignee: Individual
•
Filing: 1989-08-07
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Granted: 1990-08-07
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Expires: 2009-08-07
Abstract
Abstract A multi-purpose hand tool having novel structure that allows it to partially function in the manner of a revolver. It has a multi-chamber revolver-like cylinder which revolves and holds various sizes of screw drivers, Phillips head drivers, Allen wrenches, sockets, screw starters, etc. The tool has a primary shaft whose rear end is connected to the drive shaft of a D.C. electric motor mounted in the rear body assembly. The drive shaft passes through an aligned bore hole in the front body assembly that is mounted immediately behind the revolver-like cylinder. The rear body assembly is mounted in a track formed along the top edge of the handle assembly so that the rear body assembly may be reciprocally moved rearward to disengage the primary shaft from one driver tool to the next driver tool that the user desires to place on the end of the primary shaft. The front body assembly has been designed so it may be used in conjunction with the revolver-like cylinder in a manual operation by removing the front body assembly and attaching a ratchet handle assembly to its rear end. Various auxiliary assemblies can be detachably mounted to the hand tool.
Inventors
- 👤 Arthur Golden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:37
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/16; B25B21/00; B25F; B25F3/00; B25F5/00; B25F5/02; B25F5/029
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
351 words
A multi-purpose hand tool comprising: an elongated rear body assembly having a longitudinally extending axis, said rear body assembly having a front end, a rear end, a top surface and a bottom surface, a compartment is formed in said rear body assembly and a D. C. electric motor is mounted therein and it has at least one drive shaft extending from one of its ends; an elongated primary shaft having a predetermined length and having a front end and a rear end; means for connecting said driveshaft to the rear end of said primary shaft so that said primary shaft can be rotated; a handle assembly having a rear body assembly mounting portion and a handle portion, said rear body assembly having means on its bottom surface that mates with means on the top surface of the rear body assembly portion of said handle assembly that allows said rear body assembly to be reciprocally slid along the top surface of said mounting portion which allows the front end of said primary shaft to be withdrawn rearwardly from said revolver-like cylinder; a front body assembly having a front wall, a rear wall, a top wall, and a pair of laterally spaced side walls, a bore hole extending from said front wall to said rear wall and being of a diameter such that said primary shaft freely passes therethrough; means for detachably securing said front body assembly to the front end of said rear body assembly; a revolver-like cylinder having a longitudinally extending axis, said cylinder having a front face and rear face, said cylinder having a first set of recesses formed in its front face that align with apertures in said rear face, said first set of recesses having longitudinally extending axes that are parallel to each other, said first set of recesses having their axes on a first common radius, said first common radius being substantially equal to the lateral distance from the longitudinal axis of said primary shaft to the axis of said cylinder; and means for rotatably connecting said cylinder to the front wall of said front body assembly.
Claim 2
Dependent Claim
351 words
A multi-purpose hand tool comprising: an elongated rear body assembly having a longitudinally extending axis, said rear body assembly having a front end, a rear end, a top surface and a bottom surface, a compartment is formed in said rear body assembly and a D. C. electric motor is mounted therein and it has at least one drive shaft extending from one of its ends; an elongated primary shaft having a predetermined length and having a front end and a rear end; means for connecting said driveshaft to the rear end of said primary shaft so that said primary shaft can be rotated; a handle assembly having a rear body assembly mounting portion and a handle portion, said rear body assembly having means on its bottom surface that mates with means on the top surface of the rear body assembly portion of said handle assembly that allows said rear body assembly to be reciprocally slid along the top surface of said mounting portion which allows the front end of said primary shaft to be withdrawn rearwardly from said revolver-like cylinder; a front body assembly having a front wall, a rear wall, a top wall, and a pair of laterally spaced side walls, a bore hole extending from said front wall to said rear wall and being of a diameter such that said primary shaft freely passes therethrough; means for detachably securing said front body assembly to the front end of said rear body assembly; a revolver-like cylinder having a longitudinally extending axis, said cylinder having a front face and rear face, said cylinder having a first set of recesses formed in its front face that align with apertures in said rear face, said first set of recesses having longitudinally extending axes that are parallel to each other, said first set of recesses having their axes on a first common radius, said first common radius being substantially equal to the lateral distance from the longitudinal axis of said primary shaft to the axis of said cylinder; and means for rotatably connecting said cylinder to the front wall of said front body assembly.
Claim 3
Dependent Claim
99 words
A multi-purpose hand tool as recited in claim 1 further comprising said revolver-like cylinder having a second set of recesses formed in its front face and these align with apertures in said rear face, said second set of recesses having longitudinally extending axes that are parallel to each other, said second set of receses having their axes on a second common radius, means for adjusting the vertical height of said cylinder with respect to the front face of said front body member so that said second common radius is in alignment with the longitiudinal axis of said primary shaft.
Claim 4
Dependent Claim
25 words
A multi-purpose hand tool as recited in claim 1 further comprising a flashlight assembly detachably mounted on the top wall of said front body assembly.
Claim 5
Dependent Claim
22 words
A multi-purpose hand tool as recited in claim 1 further comprising magnetic structure on the top wall of said front body assembly.
Claim 6
Dependent Claim
33 words
A multi-purpose hand tool as recited in claim 1 wherein said handle has a bottom end that has an openable cover that is in communication with a battery chamber formed in said handle.
Claim 7
Dependent Claim
55 words
A multi-purpose hand tool as recited in claim 5 further comprising a plurality of batteries mounted in said chamber, a switch is mounted on the outside surface of said handle portion and a plurality of electrical wires are connected to said batteries, said switch and said D. C. electric motor to form a complete circuit.
Claim 8
Dependent Claim
33 words
A multi-purpose hand tool as recited in claim 7 further comprising means for locking said rear body assembly in a fixed position with regard to the rear body mounting portion of said handle.
Claim 9
Dependent Claim
23 words
A multi-purpose hand tool as recited in claim 7 further comprising means for locking said front body assembly to said rear body assembly.
Claim 10
Dependent Claim
29 words
A multi-purpose hand tool as recited in claim 7 wherein said D. C. electric motor has a drive shaft extending from both its front end and its rear end.
Claim 11
Dependent Claim
30 words
A multi-purpose hand tool as recited in claim 1 further comprising means for positively positioning the axes of said recesses in alignment with the longitudinal axis of said primary shaft.
Claim 12
Dependent Claim
60 words
A multi-purpose hand tool as recited in claim 7 wherein said means for rotatably connecting said cylinder to said front wall of said front body assembly comprises a secondary shaft that extends outwardly from said front wall and there is quick release spring means in the longitudinally extending axis of said revolver-like cylinder so that it may be quickly changed.
References Cited (Backward Citations)
US4572038A
Cited
US4653356A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-06 | 1994-02-05 | 1994-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-06 | 1998-02-05 | 1998-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-06 | 2002-02-05 | 2002-08-07 | $7700.00 | Window Closed / Lapsed |