Patent US3552544A successfully refreshed from Google Patents.
US3552544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed conveyor
Assignee: Individual
•
Filing: 1969-03-20
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Granted: 1971-01-05
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Expires: 1989-03-20
Abstract
Abstract A variable speed conveyor comprising a series of closely-spaced oblong elements the upper faces of which form the conveying surface, each element extending transversely of the conveyor and being orbited rapidly in a plane perpendicular to said surface while remaining parallel to itself under the action of a drive unit, the drive units imparting to said elements orbital movements of vibratory nature which are progressively variable from the first element to the last one.
Inventors
- 👤 Pierre Patin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:09
CPC Classifications
B; B66; B66B; B66B21/00; B66B21/10; B66B21/12; B65; B65G; B65G27/00; B65G2812/00; B65G2812/03; B65G2812/0304; B65G2812/0308
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
77 words
A Variable speed conveyor comprising a series of closelyspaced oblong elements disposed in succession transversely of the direction of conveyance and the upper faces of which form the conveying surface, means of for imparting to each element an orbital movement of vibratory nature in a plane perpendicular to said surface while said element remains parallel to itself, and means for progressively varying the vibratory nature of the orbital movements from the first element to the last one.
Claim 2
Dependent Claim
77 words
A Variable speed conveyor comprising a series of closelyspaced oblong elements disposed in succession transversely of the direction of conveyance and the upper faces of which form the conveying surface, means of for imparting to each element an orbital movement of vibratory nature in a plane perpendicular to said surface while said element remains parallel to itself, and means for progressively varying the vibratory nature of the orbital movements from the first element to the last one.
Claim 3
Dependent Claim
21 words
A variable speed conveyor as claimed in claim 1, wherein the vibratory nature of the orbital movements progressively varies in amplitude.
Claim 4
Dependent Claim
21 words
A variable speed conveyor as claimed in claim 1, wherein the vibratory nature of the orbital movements progressively varies in frequency.
Claim 5
Dependent Claim
98 words
A variable speed conveyor comprising a series of closely-spaced oblong elements disposed in succession transversely of the direction of Conveyance and the upper faces of which form the conveying surface, stationary transverse shafts lying in a plane parallel to said surface and adapted to support each element, drive means for rotary driving said shafts, and means for imparting to each element an orbital movement of vibratory nature in a plane perpendicular to said surface while said element remains parallel to itself, the vibratory nature of the orbital movements progressively varying from the first element to the last one.
Claim 6
Dependent Claim
98 words
A variable speed conveyor comprising a series of closely-spaced oblong elements disposed in succession transversely of the direction of Conveyance and the upper faces of which form the conveying surface, stationary transverse shafts lying in a plane parallel to said surface and adapted to support each element, drive means for rotary driving said shafts, and means for imparting to each element an orbital movement of vibratory nature in a plane perpendicular to said surface while said element remains parallel to itself, the vibratory nature of the orbital movements progressively varying from the first element to the last one.
Claim 7
Dependent Claim
47 words
A variable speed conveyor as claimed in claim 4, wherein the elements have substantially flat upper faces and are provided along their neighboring sides with rows of teeth which interleave with one another with sufficient clearance to allow orbital movement of the elements without touching one another.
Claim 8
Dependent Claim
49 words
A variable speed conveyor as claimed in claim 4, wherein the means for imparting to each element an orbital movement of vibratory nature comprises a pair of eccentrics with equal eccentricity carried by each supporting shaft near its ends and means provided in said element for housing said eccentrics.
Claim 9
Dependent Claim
40 words
A variable speed conveyor as claimed in claim 6, wherein the eccentricities of the eccentrics progressively varies from the first element to the last one, and wherein the drive means rotary drives the supporting shafts at the same rotary speed.
Claim 10
Dependent Claim
41 words
A variable speed conveyor as claimed in claim 6, wherein the eccentrics are equal for all the elements, and wherein the drive means rotary drives the supporting shafts at a progressively varying speed from the first element to the last one.
Claim 11
Dependent Claim
48 words
A variable speed conveyor as claimed in claim 6, having two shafts for supporting each element and wherein each element is provided with bearings for supporting the corresponding eccentrics which eccentrics have the same eccentricity for said two shafts, whereby the orbital movement of each element is circular.
Claim 12
Dependent Claim
99 words
A variable speed conveyor as claimed in claim 6, having three shafts for supporting each element, the center shaft being rotated in the opposite direction to the two side shafts and the eccentrics of said center shafts being of greater diameter than those of the side shafts, wherein each element is provided with lateral central vertical channels and with a pair of lateral side horizontal channels, and wherein bearing blocks movable vertically in said vertical channels and horizontally in said horizontal channels respectively support the eccentrics of said three shafts, whereby the orbital movement of each element is elliptical.
Claim 13
Dependent Claim
17 words
A variable speed conveyor as claimed in claim 4, wherein the conveying surface follows a nonlinear path.
Claim 14
Dependent Claim
17 words
A variable speed conveyor as claimed in claim 4, wherein the conveying surface follows a nonplanar path.
References Cited (Backward Citations)
US1853392A
Cited
US2959271A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |