Patent US3672306A successfully refreshed from Google Patents.
US3672306A
Expired / Lapsed
US
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Conveyor carrier with pivotal motion damping load suspension
Assignee: Jervis B Webb Co
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Filing: 1970-11-10
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Granted: 1972-06-27
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Expires: 1990-11-10
Abstract
Abstract A pivotal motion damping suspension for the load carrying portion of a conveyor carrier includes a tubular bearing member secured to the load carrying portion and internally slideably engaged by a pair of bearing segments mounted on the track supported portion of the carrier. The bearing segments engage the tubular bearing member at circumferentially spaced locations thereon, and swinging motion of the load carrying portion in either direction produces an increased force normal to one of the bearing segments and an increase in the frictional resistance between such bearing segment and the tubular bearing member which brakes and dampens swinging motion.
Inventors
- 👤 Clarence A Dehne
- 👤 Harold A Folsom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:11
CPC Classifications
B; B61; B61B; B61B10/00; B61B10/02; B61B10/025
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
132 words
In a conveyor carrier having a track supported portion and a load carrying portion suspended therefrom for swinging movement in the path of carrier travel, an improved suspension for damping such swinging movement comprising bearing means secured to one of the carrier portions and providing an arcuate bearing surface, and combined bearing and braking means secured to the other of the carrier portions and providing at least a pair of arcuate bearing segments slideably engaging said arcuate bearing surface at circumferentially spaced locations thereon whereby a swinging movement of the load carrying portion in either direction produces an increase in the force normal to one of the pair of bearing segments and a corresponding increase in the frictional resistance generated between said one bearing segment and the arcuate bearing surface engaged thereby.
Claim 2
Dependent Claim
132 words
In a conveyor carrier having a track supported portion and a load carrying portion suspended therefrom for swinging movement in the path of carrier travel, an improved suspension for damping such swinging movement comprising bearing means secured to one of the carrier portions and providing an arcuate bearing surface, and combined bearing and braking means secured to the other of the carrier portions and providing at least a pair of arcuate bearing segments slideably engaging said arcuate bearing surface at circumferentially spaced locations thereon whereby a swinging movement of the load carrying portion in either direction produces an increase in the force normal to one of the pair of bearing segments and a corresponding increase in the frictional resistance generated between said one bearing segment and the arcuate bearing surface engaged thereby.
Claim 3
Dependent Claim
15 words
A conveyor carrier according to claim 1 wherein the bearing means comprises a cylindrical member.
Claim 4
Dependent Claim
25 words
A conveyor carrier according to claim 2 wherein the cylindrical member is tubular and the arcuate bearing surface is formed by the internal surface thereon.
Claim 5
Dependent Claim
23 words
A conveyor carrier according to claim 1 wherein the combined bearing and braking means comprises a pair of rigidly connected arcuate bearing segments.
Claim 6
Dependent Claim
72 words
A conveyor carrier according to claim 1 wherein the combined bearing and braking means comprises a pair of members each having a load supporting segment and a circumferentially spaced braking segment, and pivot means individually supporting each of the pair of members for movement of the braking segment thereof into engagement with the arcuate bearing surface with increasing force in response to swinging movement of the load carrying portion in one direction.
Claim 7
Dependent Claim
59 words
A conveyor carrier according to claim 1 wherein the bearing means comprises a cylindrical tubular member having the arcuate bearing surface on the inner surface thereof, and the combined bearing and braking means comprises a pair of rigidly connected cylindrical segments arrAnged symmetrically relative to a plane through the axis of the cylindrical tubular member midway between the segments.
Claim 8
Dependent Claim
39 words
A conveyor carrier according to claim 6 wherein the cylindrical tubular member is secured to the load carrying portion of the carrier and swings therewith, and the cylindrical segments are fixed to the track supported portion of the carrier.
Claim 9
Dependent Claim
103 words
A conveyor carrier according to claim 1 wherein the bearing means comprises a cylindrical tubular member having the arcuate bearing surface on the inner surface thereof, and the combined bearing and braking means comprises a pair of members each having a load supporting segment and a circumferentially spaced braking segment, and pivot means individually supporting each of the pair of members in symmetrical relation to the axis of the tubular member for movement of said braking segment into engagement with the bearing surface of the tubular member with increasing force in response to swinging movement of the load carrying portion in one direction.
Claim 10
Dependent Claim
43 words
A conveyor carrier according to claim 8 wherein the cylindrical tubular member is secured to the load carrying portion of the carrier and swings therewith, and the combined bearing and braking members are pivotally secured to the track supported portion of the carrier.
Claim 11
Dependent Claim
63 words
A conveyor carrier according to claim 1 wherein the increase in the force normal to one of the bearing segments is proportional to the secant of the angle between the line of action of the load carrying portion on the one bearing segment and a line normal to the arcuate bearing surface at the area of contact of the one bearing segment therewith.
References Cited (Backward Citations)
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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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |