US3920117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire conveyor belt
Assignee: Ashworth Bros Inc
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Filing: 1974-04-23
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Granted: 1975-11-18
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Expires: 1994-04-23
Abstract
Abstract A wire conveyor belt formed of a plurality of interconnected wire links of generally flat helical configuration with one surface of each link defined by a plurality of elongated connective portions extending across the link between spaced arcuate end portions, and the other, generally opposed surface of the link being defined by a pluality of generally U-shaped connective portions extending between the arcuate end portions and defining a channel extending along the link with the base of the channel extending inwardly toward the other surface, the links being pivotally interconnected by a plurality of connective cross members extending across the belt through the arcuate end portions.
Inventors
- 👤 Gerald C Roinestad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:33
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/06; B65G17/063; B65G17/064; B65G15/00; B65G15/30; B65G15/54; B65G2201/00; B65G2201/02; B65G2201/06
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
147 words
A wire conveyor belt comprising: a plurality of wire links each forming a generally flat helix extending across the belt in a plurality of flat loops defining opposed faces of the links, said faces being generally parallel to the path of travel of the belt, each of said links including a plurality of arcuate end portions at spaced locations along the link; and a plurality of elongated connective portions extending across the link at spaced locations on both faces of the link to join said end portions, the connective portions on one face of the link being generally U-shaped to define a channel extending along the link with the base of the channel extendinG inwardly toward the other face of the link; and a plurality of connective cross members extending across the belt within the arcs defined by said end portions to pivotally interconnect said wire links.
Claim 2
Dependent Claim
147 words
A wire conveyor belt comprising: a plurality of wire links each forming a generally flat helix extending across the belt in a plurality of flat loops defining opposed faces of the links, said faces being generally parallel to the path of travel of the belt, each of said links including a plurality of arcuate end portions at spaced locations along the link; and a plurality of elongated connective portions extending across the link at spaced locations on both faces of the link to join said end portions, the connective portions on one face of the link being generally U-shaped to define a channel extending along the link with the base of the channel extendinG inwardly toward the other face of the link; and a plurality of connective cross members extending across the belt within the arcs defined by said end portions to pivotally interconnect said wire links.
Claim 3
Dependent Claim
36 words
A wire conveyor belt according to claim 1 wherein the bases of said U-shaped connective portions are substantially flat and elongated and disposed substantially co-planar with the connective portions on said other face of the links.
Claim 4
Dependent Claim
35 words
A wire conveyor belt according to claim 2 wherein the connective portions on said other face of the links extend in substantially straight lines between said arcuate end portions to define a planar belt face.
Claim 5
Dependent Claim
70 words
A wire conveyor belt according to claim 3 wherein said U-shaped connective portions have legs defining on one side thereof the sides of said channels and on the other side thereof defining with said arcuate end portions substantially circular openings receiving said connective cross members and only slightly larger than said cross members to prevent any substantially collapsing of said links toward each other in the plane of the belt.
Claim 6
Dependent Claim
61 words
A wire conveyor belt according to claim 3 wherein said U-shaped connective portions have legs defining on one side thereof the sides of said channels and on the other side thereof defining with said arcuate end portions substantially slotted openings receiving said connective cross members to permit substantial collapsing of said links toward each other in the plane of the belt.
Claim 7
Dependent Claim
24 words
A wire conveyor belt according to claim 1 wherein the bases of said channels are substantially co-planar with said other face of the links.
Claim 8
Dependent Claim
39 words
A wire conveyor belt according to claim 1 further comprising a pair of driving chains, one of said chains being disposed along each side of the belt and including means receiving the respective ends of said connective cross members.
Claim 9
Dependent Claim
40 words
A wire conveyor belt according to claim 7 wherein said chain comprises a plurality of edge links and said receiving means provide slotted openings receiving said connective cross members to permit mutual collapse of said edge links toward each other.
Claim 10
Dependent Claim
61 words
A wire conveyor belt according to claim 8 wherein said U-shaped connective portions have legs defining on one side thereof the sides of said channels and on the other side thereof defining with said arcuate end portions substantially slotted openings receiving said connective cross members to permit substantial collapsing of said links toward each other in the plane of the belt.
Claim 11
Dependent Claim
25 words
A wire conveyor belt according to claim 9 wherein said first and second surfaces lie in a plane substantially tangent to said arcuate end portions.
Claim 12
Dependent Claim
62 words
A wire conveyor belt according to claim 1 wherein said connective portions on said other face of the links define a first surface and the bases of said U-shaped connective portion define a second surface coextensive and contiguous to said first surface over a major portion of the width of said links thereby providing no cavity between said first and second surfaces.
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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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |