US3602150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspended trolley conveyor system
Assignee: CL Frost and Son Inc
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Filing: 1969-05-01
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Granted: 1971-08-31
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Expires: 1989-05-01
Abstract
Abstract This disclosure relates to a trolley construction, preferably for a power-and-free conveyor system, wherein a central casting is supported on either side by a plurality of wheels. Each wheel has an outer race and an inner race separated by bearings. The inner race of each wheel is removably fixed to a shaft which extends from a central casting so that the wheels can be removed and replaced or repaired. Key locks on the inner race engage milled slots on the central casting and/or the supporting shaft to prevent relative rotation between the central casting, the supporting shaft and the inner race.
Inventors
- 👤 Ruben E Frost
- 👤 Fredrick R Sytsma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:34
CPC Classifications
F; F16; F16C; F16C35/00; F16C35/04; F16C35/06; F16C35/063; B; B61; B61B; B61B13/00; B61B13/04; B65; B65G; B65G39/00; B65G39/02; B65G39/09; F16C13/00; F16C13/006; F16C2326/00; F16C2326/58
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
173 words
In a trolley assembly wherein a central body is supported on opposing sides by first and second wheel members, a shaft means extends out from said central body and is fixed to said wheel members so that said central body is supported on said wheel members, each of said first and second wheel members including an inner race and an outer race separated by bearing members, the improvement which comprises: portions of said shaft means extending beyond each side of said central body and contained substantially within the confines of said races; means associated with said shaft portions and accessible from the side of at least one of said wheels for removably securing said shaft means to each inner race member without removing said trolley from the track on which it is located and without destroying subsequent use of said shaft means in combination with a new wheel or wheels; and interlocking means between said inner race members and said shaft member to prevent rotation between said shaft and said inner race member.
Claim 2
Dependent Claim
173 words
In a trolley assembly wherein a central body is supported on opposing sides by first and second wheel members, a shaft means extends out from said central body and is fixed to said wheel members so that said central body is supported on said wheel members, each of said first and second wheel members including an inner race and an outer race separated by bearing members, the improvement which comprises: portions of said shaft means extending beyond each side of said central body and contained substantially within the confines of said races; means associated with said shaft portions and accessible from the side of at least one of said wheels for removably securing said shaft means to each inner race member without removing said trolley from the track on which it is located and without destroying subsequent use of said shaft means in combination with a new wheel or wheels; and interlocking means between said inner race members and said shaft member to prevent rotation between said shaft and said inner race member.
Claim 3
Dependent Claim
18 words
A trolley assembly according to claim 1 further comprising means interlocking said central body and said inner race.
Claim 4
Dependent Claim
18 words
A trolley assembly according to claim 1 further comprising means interlocking said central body with said shaft means.
Claim 5
Dependent Claim
38 words
A trolley assembly according to claim 1 wherein said removably securing means comprises at least one threaded end plug which threadably engages an end of said shaft means and bears against an outer portion of said inner race.
Claim 6
Dependent Claim
72 words
A trolley assembly according to claim 1 wherein said removably securing means comprises a pair of end plugs, each inner race being fixed to said shaft means through an end plug, each end plug having a head member abutting against an outer portion of said inner race, and a stud portion extending through said inner race from said head member, said stud portion threadably engaging an end portion of said shaft means.
Claim 7
Dependent Claim
32 words
A trolley assembly according to claim 5 wherein said interlocking means comprises a milled slot in said shaft means and a key member on said inner race projecting into said milled slots.
Claim 8
Dependent Claim
40 words
A trolley assembly according to claim 6 further comprising a milled slot in said central body adjacent said inner race, said key member projecting into said central body milled slot whereby said central body is keyed to said inner race.
Claim 9
Dependent Claim
32 words
A trolley assembly according to claim 1 wherein said interlocking means comprises a milled slot in said shaft member and a key member on said inner race projecting into said milled slot.
Claim 10
Dependent Claim
39 words
A trolley assembly according to claim 1 further comprising lubricating passages between the outside portion of said first and second wheel members and said bearings, and means sealing said bearings to maintain lubrication within said outer and inner races.
Claim 11
Dependent Claim
77 words
The trolley assembly of claim 1 in which one of the portions of the shaft means which extends from one side of said central body includes a head in abutting engagement with the inner race of one of the wheel members and the other portion of the shaft means which extends from the other side of said central body includes a threaded portion threaded into a threaded opening in the inner race of the other wheel member.
Claim 12
Dependent Claim
36 words
The trolley assembly of claim 1 in which a removable cap s secured to the outer side of each of said outer races to contain lubricant between the inner and outer races within the confines thereof.
Claim 13
Dependent Claim
122 words
In a trolley assembly wherein a central body is supported on opposing sides by first and second wheel members, a shaft means having portions extending out of both sides of said central body, and said first and second wheel members are fixed onto said shaft means so that said central body is supported by said wheel members through said shaft, each of said first and second wheel members including an inner race and an outer race separated by bearing members, the iMprovement which comprises: said portions of said shaft means each having an axial threaded opening in the end thereof and a threaded end plug removably secured therein whereby said shaft means is removably secured to each of said inner race members.
Claim 14
Dependent Claim
122 words
In a trolley assembly wherein a central body is supported on opposing sides by first and second wheel members, a shaft means having portions extending out of both sides of said central body, and said first and second wheel members are fixed onto said shaft means so that said central body is supported by said wheel members through said shaft, each of said first and second wheel members including an inner race and an outer race separated by bearing members, the iMprovement which comprises: said portions of said shaft means each having an axial threaded opening in the end thereof and a threaded end plug removably secured therein whereby said shaft means is removably secured to each of said inner race members.
Claim 15
Dependent Claim
45 words
A trolley assembly according to claim 1 further comprising a milled slot in said central body adjacent said inner race, and a key member on said inner race projecting into said central body milled slot wherein said central body is keyed to said inner race.
Claim 16
Dependent Claim
36 words
The trolley assembly of claim 12 in which is provided interlocking means between each of said inner race members and said central body to prevent relative rotation between said inner race members and said central body.
Claim 17
Dependent Claim
150 words
A power-and-free conveyor system comprising: a central supporting member; a shaft means extending out of either side of said central supporting member; wheel means adapted to roll on inwardly directed tracks, each of said wheel means comprising an outer race member, an inner race member and bearing means between said outer and inner race members; means removably fixing each of said inner race members to said shaft means such that each of said wheels can be removed and replaced or disassembled without destroying the structure of said shaft or said wheel members; said means including a head on one end of said shaft in abutting engagement with the inner race of one of said wheel members, and a threaded portion on the other end of said shaft, the inner race of the other of said wheel members having a tapped hole to threadably engage said threaded portion of said shaft.
Claim 18
Dependent Claim
150 words
A power-and-free conveyor system comprising: a central supporting member; a shaft means extending out of either side of said central supporting member; wheel means adapted to roll on inwardly directed tracks, each of said wheel means comprising an outer race member, an inner race member and bearing means between said outer and inner race members; means removably fixing each of said inner race members to said shaft means such that each of said wheels can be removed and replaced or disassembled without destroying the structure of said shaft or said wheel members; said means including a head on one end of said shaft in abutting engagement with the inner race of one of said wheel members, and a threaded portion on the other end of said shaft, the inner race of the other of said wheel members having a tapped hole to threadably engage said threaded portion of said shaft.
Claim 19
Dependent Claim
33 words
A power-and-free conveyor system according to claim 15 further comprising a lubricating passage from the outside of each wheel to said bearing area between said inner race member and said outer race member.
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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) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |