Patent US3633428A successfully refreshed from Google Patents.
US3633428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor belt
Assignee: Westland Gummiwerke GmbH and Co KG
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Filing: 1970-10-16
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Granted: 1972-01-11
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Expires: 1990-10-16
Abstract
Abstract A conveyor belt for steep-path conveying has a main belt portion provided on its conveying surface with a plurality of projections which include with the conveying surface acute angles open in the direction of advancement of the conveyor. Corrugated sidewall portions extend along opposite margins of the main belt portion and project from the conveying surface thereof at opposite lateral sides of the projections, the corrugations of these sidewall portions being inclined in the predetermined direction of advancement of the belt and also including with the conveying surface respective acute angles.
Inventors
- 👤 Richard Pott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:28
CPC Classifications
B; B65; B65G; B65G15/00; B65G15/30; B65G15/32; B65G15/42; B65G15/44; B65G2201/00; B65G2201/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
90 words
A conveyor belt, particularly for steep-path conveying, comprising a main belt portion having a conveying surface and being advanceable in a predetermined direction; a plurality of transversely extending conveying portions projecting from said surface and including therewith acute angles open in said predetermined direction; and corrugated sidewall portions extending along opposite margins of said main belt portion and projecting from said surface at opposite lateral sides of said projections, the corrugations of said sidewall portions being inclined in said predetermined direction and also including with said surface respective acute angles.
Claim 2
Dependent Claim
90 words
A conveyor belt, particularly for steep-path conveying, comprising a main belt portion having a conveying surface and being advanceable in a predetermined direction; a plurality of transversely extending conveying portions projecting from said surface and including therewith acute angles open in said predetermined direction; and corrugated sidewall portions extending along opposite margins of said main belt portion and projecting from said surface at opposite lateral sides of said projections, the corrugations of said sidewall portions being inclined in said predetermined direction and also including with said surface respective acute angles.
Claim 3
Dependent Claim
51 words
A conveyor belt as defined in claim 1, said projections being elongated transversely of said main belt portion and having a lower edge adjacent the same, and each of said projections including a base portion projecting along and secured to said surface partly behind and partly ahead of the respective projection.
Claim 4
Dependent Claim
47 words
A conveyor belt as defined in claim 1, said sidewall portions having upper edges, and said projections having upper marginal portions extending transversely of said main body portion and located above said upper edges, said upper marginal portions extending in at least substantial parallelism with said surface.
Claim 5
Dependent Claim
22 words
A conveyor belt as defined in claim 2, said base portions merging with the associated projections on respective lines of selected curvature.
Claim 6
Dependent Claim
32 words
A conveyor belt as defined in claim 1, said sidewall portions having outer sides facing away from said projections and provided with corrugations which taper one sidedly in direction towards said surface.
Claim 7
Dependent Claim
33 words
A conveyor belt as defined in claim 1, said corrugations respectively being bounded by two mutually inclined triangular wall sections meeting in a junction line which includes an acute angle with said surface.
Claim 8
Dependent Claim
36 words
A conveyor belt as defined in claim 6, said sidewall portions each being of one piece and including intermediate wall sections located between successive corrugations and extending normal to the transverse elongation of the respective projections.
Claim 9
Dependent Claim
38 words
A conveyor belt as defined in claim 6, said juncture line being inclined in said predetermined direction, and also in direction outwardly away from said projections at an acute angle with reference to a vertical on said surface.
Claim 10
Dependent Claim
33 words
A conveyor belt as defined in claim 1, said projections consisting at Least predominantly of a first elastomeric material, and said sidewall portions consisting at least predominantly of a softer second elastomeric material.
Claim 11
Dependent Claim
32 words
A conveyor belt as defined in claim 1, said projections and sidewall portions being connected only to said main belt portion and not to each other for enabling relative movements between them.
References Cited (Backward Citations)
US2562388A
Cited
US2902142A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |