Patent US4050323A successfully refreshed from Google Patents.
US4050323A
Expired / Lapsed
US
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Pintle-type industrial conveyor chain
Assignee: Individual
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Filing: 1976-01-12
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Granted: 1977-09-27
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Expires: 1996-01-12
Abstract
Abstract Industrial conveyor chains of pintle-connected types featuring stub journals removably interengageable with socket bearings through access leads which provide increased bearing surface area and shear strength in the pivoted connections relieving the connecting pins of all or a major role in the bearing and load carrying functions of the link couplings.
Inventors
- 👤 Thomas I'Anson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:39
CPC Classifications
F; F16; F16G; F16G13/00; F16G13/02; F16G13/06; F16G13/07; B; B65; B65G; B65G17/00; B65G17/30; B65G17/38; B65G17/40; B65G2201/00; B65G2201/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
110 words
A chain for industrial conveyors and the like comprising a succession of links pivotally interconnected including a first link and an adjoining second link having mutually adjacent ends each with transversely opposite side portions overlappingly confronting and pivotally joined to the respective side portions of the other by sets of pivotally engaged connecting elements formed integrally with the respective link side portions, said sets of connecting elements each comprising a stub journal porjecting transversely from one such side portion and a socket bearing, conformed to and pivotally receiving said stub jorunal, said projecting stub journals being of conically divergent form and the socket bearings being of complemental conically convergent form.
Claim 2
Dependent Claim
110 words
A chain for industrial conveyors and the like comprising a succession of links pivotally interconnected including a first link and an adjoining second link having mutually adjacent ends each with transversely opposite side portions overlappingly confronting and pivotally joined to the respective side portions of the other by sets of pivotally engaged connecting elements formed integrally with the respective link side portions, said sets of connecting elements each comprising a stub journal porjecting transversely from one such side portion and a socket bearing, conformed to and pivotally receiving said stub jorunal, said projecting stub journals being of conically divergent form and the socket bearings being of complemental conically convergent form.
Claim 3
Dependent Claim
75 words
The chain defined in claim 1 wherein the socket bearings are of circular segmental form, thereby to seat the stub journals, said socket bearings opening endwise of the associated link side portions into an entrance lead that extends from such socket bearing endwise and laterally of such side portion to an edge of such side portion to pass said stub journal for entering and leaving such socket bearing in assembling and disassembling of the chain.
Claim 4
Dependent Claim
22 words
The chain defined in claim 2 and a pivot pin passing through and interconnecting said overlapping ends coaxially with said stub journals.
Claim 5
Dependent Claim
66 words
The chain defined in claim 3 wherein the chain is of the H-type with interengaged first and second links, one having a widely spaced end portion straddling and pin-connected to end portions of the other which are narrowly spaced to be thus straddled, the stub journals projecting transversely outward from opposite sides of the link end with narrowly spaced side portions coaxial with the pin connection.
Claim 6
Dependent Claim
66 words
The chain defined in claim 3 wherein the chain is of the C-type with interengaged links alternately having widely spaced and closely spaced parallel side bars, the end portions of alternate links straddling and being pin-connected to the end portions of the closely spaced side bars of the intervening links, with the stub journals projecting transversely outward from the opposite end portions of said intervening links.
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) | 1980-09-26 | 1981-03-28 | 1981-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-26 | 1985-03-28 | 1985-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-26 | 1989-03-28 | 1989-09-27 | $7700.00 | Window Closed / Lapsed |