US3887209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load-handling appliance
Assignee: Individual
•
Filing: 1974-01-09
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Granted: 1975-06-03
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Expires: 1994-01-09
Abstract
Abstract Load-handling appliance by means of which loads can be moved around, and raised and lowered smoothly when required. The load is supported by a number of assemblies, each of which can be removed from the load when this has been moved into the required position. Each assembly has means, operated by an electric motor, for raising or lowering a load-engaging part relative to a ground engaging part, and these motors can all be controlled by a single control system to effect smooth handling of the load.
Inventors
- 👤 Henri Blanc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:43
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/12; B65D90/14; B65D90/18
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
201 words
Load-handling appliance comprising a plurality of mobile assemblies adapted to be secured to the load, each assembly including: a bracket; a vertical axle fast with the load about which the bracket can swivel and along which the bracket can slide; means for securing said bracket to said axle against said sliding movement; a worm gear; a sleeve paralled with said vertical axle, attached to and adapted to pivot relative to said bracket and to support the worm gear; a rack bar for engagement with the worm gear; a support member slidably mounted in said sleeve and being fast with the rack bar, an electric motor speed-reducer assembly having an output shaft to which the worm gear is coupled; an eccentric collar secured to said motor speed-reducer assembly, pivot means mounted on said bracket and supporting said eccentric collar for pivotal movement about an axis which is coaxial with the pivotal axis of the sleeve relative to the brackets, and a coupling sleeve connecting said worm and said output shaft, said pivot means including an extension upon which said eccentric collar is slidably mounted, said extension including means for locking the collar in an upper and lower position thereof on said extension.
Claim 2
Dependent Claim
201 words
Load-handling appliance comprising a plurality of mobile assemblies adapted to be secured to the load, each assembly including: a bracket; a vertical axle fast with the load about which the bracket can swivel and along which the bracket can slide; means for securing said bracket to said axle against said sliding movement; a worm gear; a sleeve paralled with said vertical axle, attached to and adapted to pivot relative to said bracket and to support the worm gear; a rack bar for engagement with the worm gear; a support member slidably mounted in said sleeve and being fast with the rack bar, an electric motor speed-reducer assembly having an output shaft to which the worm gear is coupled; an eccentric collar secured to said motor speed-reducer assembly, pivot means mounted on said bracket and supporting said eccentric collar for pivotal movement about an axis which is coaxial with the pivotal axis of the sleeve relative to the brackets, and a coupling sleeve connecting said worm and said output shaft, said pivot means including an extension upon which said eccentric collar is slidably mounted, said extension including means for locking the collar in an upper and lower position thereof on said extension.
Claim 3
Dependent Claim
201 words
Load-handling appliance comprising a plurality of mobile assemblies adapted to be secured to the load, each assembly including: a bracket; a vertical axle fast with the load about which the bracket can swivel and along which the bracket can slide; means for securing said bracket to said axle against said sliding movement; a worm gear; a sleeve paralled with said vertical axle, attached to and adapted to pivot relative to said bracket and to support the worm gear; a rack bar for engagement with the worm gear; a support member slidably mounted in said sleeve and being fast with the rack bar, an electric motor speed-reducer assembly having an output shaft to which the worm gear is coupled; an eccentric collar secured to said motor speed-reducer assembly, pivot means mounted on said bracket and supporting said eccentric collar for pivotal movement about an axis which is coaxial with the pivotal axis of the sleeve relative to the brackets, and a coupling sleeve connecting said worm and said output shaft, said pivot means including an extension upon which said eccentric collar is slidably mounted, said extension including means for locking the collar in an upper and lower position thereof on said extension.
Claim 4
Dependent Claim
201 words
Load-handling appliance comprising a plurality of mobile assemblies adapted to be secured to the load, each assembly including: a bracket; a vertical axle fast with the load about which the bracket can swivel and along which the bracket can slide; means for securing said bracket to said axle against said sliding movement; a worm gear; a sleeve paralled with said vertical axle, attached to and adapted to pivot relative to said bracket and to support the worm gear; a rack bar for engagement with the worm gear; a support member slidably mounted in said sleeve and being fast with the rack bar, an electric motor speed-reducer assembly having an output shaft to which the worm gear is coupled; an eccentric collar secured to said motor speed-reducer assembly, pivot means mounted on said bracket and supporting said eccentric collar for pivotal movement about an axis which is coaxial with the pivotal axis of the sleeve relative to the brackets, and a coupling sleeve connecting said worm and said output shaft, said pivot means including an extension upon which said eccentric collar is slidably mounted, said extension including means for locking the collar in an upper and lower position thereof on said extension.
Claim 5
Dependent Claim
29 words
Load-handling appliance according to claim 1, wherein said output shaft is offset laterally relatively to an input shaft of the speed-reducer assembly and is coupled directly witH the worm.
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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |