Patent US4274310A successfully refreshed from Google Patents.
US4274310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torque multiplication device
Assignee: Individual
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Filing: 1979-07-20
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Granted: 1981-06-23
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Expires: 1999-07-20
Abstract
Abstract Discloses a torque multiplication device for use in tightening or loosening a nut, lug, bolt head and the like, employing a planetary transmission of sun, planet and orbit gear means which multiplies the applied torque input to produce an output torque to facilitate and simplify such tightening or loosening. Brake means incorporated with the device prevents rotation of the orbit gear means. A modification of the invention discloses an extensible brake arm which has an anchoring socket for securement with another nut, lug, bolt head and the like to likewise prevent rotation of the orbit gear means. Another modification of the invention discloses two sets of sun, planet and orbit gear means having one common, drive output to produce uniform and balanced drive output. Another modification of the invention discloses a ring-like brake arm having a plurality of anchoring sockets for locking securement with the lugs of a motor-vehicle wheel. Also disclosed in a torque measuring device for use in measuring the magnitude of output torque being transmitted by the output drive means so that a human operator can thereby control the magnitude of such torque being applied to prevent a nut or bolt head from being sheared off through excess application of torque.
Inventors
- 👤 Robert P. Michaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:47
CPC Classifications
B; B25; B25B; B25B17/00; B25B17/02
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
198 words
A torque multiplication device for use in tightening or loosening a nut, lug, bolt head and the like; said torque multiplication device comprising planetary transmission means of operatively engaged sun, planet and orbit gear means for producing an output torque constituting an input torque applied to said transmission means and multiplied by a multiplication factor through said transmission means, said transmission means having input drive means to receive such applied torque input and output drive means to transmit such output torque to said nut, lug, bolt head and the like for tightening or loosening same, and brake means for braking said orbit gear means, said brake means carrying an anchoring socket for securement with another nut, lug, bolt head and the like to brake said orbit gear means, said anchoring socket carrying locking screw means, said anchoring socket freely mounting in a rotary direction a ring gear, said ring gear operatively engaging said locking screw means to advance inwardly said locking screw means for locking engagement of said locking screw means with the faces of such another nut, lug, bolt head and the like or to withdraw outwardly said locking screw means for release from such locking engagement.
Claim 2
Dependent Claim
198 words
A torque multiplication device for use in tightening or loosening a nut, lug, bolt head and the like; said torque multiplication device comprising planetary transmission means of operatively engaged sun, planet and orbit gear means for producing an output torque constituting an input torque applied to said transmission means and multiplied by a multiplication factor through said transmission means, said transmission means having input drive means to receive such applied torque input and output drive means to transmit such output torque to said nut, lug, bolt head and the like for tightening or loosening same, and brake means for braking said orbit gear means, said brake means carrying an anchoring socket for securement with another nut, lug, bolt head and the like to brake said orbit gear means, said anchoring socket carrying locking screw means, said anchoring socket freely mounting in a rotary direction a ring gear, said ring gear operatively engaging said locking screw means to advance inwardly said locking screw means for locking engagement of said locking screw means with the faces of such another nut, lug, bolt head and the like or to withdraw outwardly said locking screw means for release from such locking engagement.
Claim 3
Dependent Claim
164 words
A torque multiplication device for use in tightening or loosening a nut, lug, bolt head and the like; said torque multiplication device comprising planetary transmission means of operatively engaged sun, planet and orbit gear means for producing an output torque constituting an input torque applied to said transmission means and multiplied by a multiplication factor through said transmission means, said transmission means having input drive means to receive such applied torque input and output drive means to transmit such output torque to said nut, lug, bolt head and the like for tightening or loosening same, and brake means for braking said orbit gear means, said planetary transmission means comprising two sets of sun, planet and orbit gear means, said output drive means being one common, output drive means for transmitting such output torque and having thereby the resulting functional advantage of effecting uniform drive output and of preventing unbalanced output forces from being applied to such output drive means or from being transmitted therefrom.
Claim 4
Dependent Claim
164 words
A torque multiplication device for use in tightening or loosening a nut, lug, bolt head and the like; said torque multiplication device comprising planetary transmission means of operatively engaged sun, planet and orbit gear means for producing an output torque constituting an input torque applied to said transmission means and multiplied by a multiplication factor through said transmission means, said transmission means having input drive means to receive such applied torque input and output drive means to transmit such output torque to said nut, lug, bolt head and the like for tightening or loosening same, and brake means for braking said orbit gear means, said planetary transmission means comprising two sets of sun, planet and orbit gear means, said output drive means being one common, output drive means for transmitting such output torque and having thereby the resulting functional advantage of effecting uniform drive output and of preventing unbalanced output forces from being applied to such output drive means or from being transmitted therefrom.
Claim 5
Dependent Claim
44 words
A torque multiplication device in accordance with claim 2, wherein is further provided two housings, each of which carries said orbit gear means, wherein said brake means comprises a brake arm having two forks, and wherein each of said housings carries a brake-arm fork.
Claim 6
Dependent Claim
43 words
A torque multiplication device in accordance with claim 3, wherein is further provided a drive handle having two forks, and wherein each of said drive-handle forks is operatively connected to said input drive means of said transmission means to apply torque input thereto.
Claim 7
Dependent Claim
79 words
A torque multiplication device in accordance with claim 2, wherein is further provided two housings, each of which carries one of said orbit gear means, wherein said brake means comprises a brake arm having two forks, wherein each of said housings carries a brake-arm fork, wherein is further provided a drive handle having two forks and wherein each of said drive-handle forks is operatively connected to said input drive means of said transmission means to apply torque input thereto.
Claim 8
Dependent Claim
190 words
A torque multiplication device for use in tightening or loosening a nut, lug, bolt head and the like; said torque multiplication device comprising planetary transmission means of operatively engaged sun, planet and orbit gear means for producing an output torque constituting an input torque applied to said transmission means and multiplied by a multiplication factor through said transmission means, said transmission means having input drive means to receive such applied torque input and output drive means to transmit such output torque to said nut, lug, bolt head and the like for tightening or loosening same, and brake means for braking said orbit gear means, said brake means carrying a plurality of intermediate elements, anchoring sockets, ring gears and locking screw means, each of said anchoring sockets freely mounting in a rotary direction one of said ring gears, each of said ring gears operatively engaging said locking screw means to advance inwardly said locking screw means for locking engagement of said locking screw means with the faces of such other nut, lug, bolt head and the like or to withdraw outwardly said locking screw means for release from such locking engagement.
Claim 9
Dependent Claim
190 words
A torque multiplication device for use in tightening or loosening a nut, lug, bolt head and the like; said torque multiplication device comprising planetary transmission means of operatively engaged sun, planet and orbit gear means for producing an output torque constituting an input torque applied to said transmission means and multiplied by a multiplication factor through said transmission means, said transmission means having input drive means to receive such applied torque input and output drive means to transmit such output torque to said nut, lug, bolt head and the like for tightening or loosening same, and brake means for braking said orbit gear means, said brake means carrying a plurality of intermediate elements, anchoring sockets, ring gears and locking screw means, each of said anchoring sockets freely mounting in a rotary direction one of said ring gears, each of said ring gears operatively engaging said locking screw means to advance inwardly said locking screw means for locking engagement of said locking screw means with the faces of such other nut, lug, bolt head and the like or to withdraw outwardly said locking screw means for release from such locking engagement.
Claim 10
Dependent Claim
171 words
A torque multiplication device for use in tightening or loosening a nut, lug, bolt head and the like; said torque multiplication device comprising planetary transmission means of operatively engaged sun, planet and orbit gear means for producing an output torque constituting an input torque applied to said transmission means and multiplied by a multiplication factor through said transmission means, said transmission means having input drive means to receive such applied torque input and output drive means to transmit such output torque to said nut, lug, bolt head and the like for tightening or loosening same, and brake means for braking said orbit gear means, said brake means comprising a plurality of intermediate elements and anchoring sockets, each of said intermediate elements freely mounting in a rotary direction one of said anchoring sockets, said brake means further comprising a brake arm, said brake arm having holes formed therethrough, each of said intermediate elements carrying a shaft in eccentric relationship, and each of said brakearm holes receiving said shaft of said intermediate element.
Claim 11
Dependent Claim
171 words
A torque multiplication device for use in tightening or loosening a nut, lug, bolt head and the like; said torque multiplication device comprising planetary transmission means of operatively engaged sun, planet and orbit gear means for producing an output torque constituting an input torque applied to said transmission means and multiplied by a multiplication factor through said transmission means, said transmission means having input drive means to receive such applied torque input and output drive means to transmit such output torque to said nut, lug, bolt head and the like for tightening or loosening same, and brake means for braking said orbit gear means, said brake means comprising a plurality of intermediate elements and anchoring sockets, each of said intermediate elements freely mounting in a rotary direction one of said anchoring sockets, said brake means further comprising a brake arm, said brake arm having holes formed therethrough, each of said intermediate elements carrying a shaft in eccentric relationship, and each of said brakearm holes receiving said shaft of said intermediate element.
Claim 12
Dependent Claim
41 words
A torque multiplication device in accordance with claim 7, wherein said intermediate elements have finger spokes, and wherein said finger spokes are adapted to being grasped by a human operator's hand to facilitate mounting said intermediate elements on said brake arm.
Claim 13
Dependent Claim
140 words
A torque multiplication device for use in tightening or loosening a nut, lug, bolt head and the like; said torque multiplication device comprising planetary transmission means of operatively engaged sun, planet and orbit gear means for producing an output torque consistuting an input torque applied to said transmission means and multiplied by a multiplication factor through said transmission means, said transmission means having input drive means to receive such applied torque input and output drive means to transmit such output torque to said nut, lug, bolt head and the like to tightening or loosening same, and brake means for braking said orbit gear means, said brake means comprising a brake arm somewhat ring-like in configuration and a plurality of anchoring sockets for securement with other nuts, bolt heads, lugs and the like, and said brake arm carrying said anchoring sockets.
Claim 14
Dependent Claim
140 words
A torque multiplication device for use in tightening or loosening a nut, lug, bolt head and the like; said torque multiplication device comprising planetary transmission means of operatively engaged sun, planet and orbit gear means for producing an output torque consistuting an input torque applied to said transmission means and multiplied by a multiplication factor through said transmission means, said transmission means having input drive means to receive such applied torque input and output drive means to transmit such output torque to said nut, lug, bolt head and the like to tightening or loosening same, and brake means for braking said orbit gear means, said brake means comprising a brake arm somewhat ring-like in configuration and a plurality of anchoring sockets for securement with other nuts, bolt heads, lugs and the like, and said brake arm carrying said anchoring sockets.
Claim 15
Dependent Claim
44 words
A torque multiplication device in accordance with claim 9, wherein said brake arm further comprises a plurality of intermediate elements, said brake arm carrying said intermediate elements, and each of said intermediate elements freely mounting in a rotary direction one of said anchoring sockets.
Claim 16
Dependent Claim
101 words
A torque multiplication device in accordance with claim 10, wherein are further provided ring gears and locking screw means, wherein each of said anchoring sockets carries said locking screw means, wherein each of said anchoring sockets freely mounts in a rotary direction one of said ring gears, wherein each of said ring gears operatively engages said locking screw means to advance inwardly said locking screw means for locking engagement of said locking screw means with the faces of such other nut, lug, bolt head and the like or to withdraw outwardly said locking screw means for release from such locking engagement.
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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) | 1984-06-22 | 1984-12-22 | 1985-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-22 | 1988-12-22 | 1989-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-22 | 1992-12-22 | 1993-06-23 | $7700.00 | Window Closed / Lapsed |