Patent US3567095A successfully refreshed from Google Patents.
US3567095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belt structure
Assignee: Individual
•
Filing: 1968-12-19
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Granted: 1971-03-02
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Expires: 1988-12-19
Abstract
Abstract A flexible endless belt for use as at least one of the belts in a belt drive assembly of the type in which two belts cooperate to drive and convey elongated articles in the direction of travel of the belts by engaging opposite sides of the article. The belt includes a drive cover, a tension section, and an articleengaging cover of compressible material which includes one or more grooves therein of various cross-sectional configurations which extend longitudinally of the belt. The grooves have at least one cross-sectional dimension smaller than the conveyed article so that the article is wedged in the groove by forcing the article therein. In the most common form of the invention both belts of the assembly are provided with grooves into which opposite sides of the conveyed article are wedged. The invention is particularly useful for conveying extruded aluminum tubing without slippage or damage during its fabrication.
Inventors
- 👤 Joseph C Geist
- 👤 William S Korff
- 👤 John F Mcgibbon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:13
CPC Classifications
B; B65; B65G; B65G15/00; B65G15/30; B65G15/32; B65G15/42; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
248 words
A pair of endless belts for use in a belt drive assembly of the type in which two belts cooperate to drive and convey elongated articles in the direction of travel of the belts by engaging the article therebetween, at least one of said belts comprising: A. a drive cover of flexible material forming one surface of the belt to engage the assembly drive means; B. an article-engaging cover of flexible material which is more compressible than the article, forming the other surface of the belt and including groove means therein extending longitudinally of the belt and having an article-gripping portion for receiving the conveyed article, at least one crosssectional dimension of the groove means being less than the corresponding cross-sectional dimension of the article so that each conveyed article may be wedged into said groove means to engage said article-gripping portion thereof in such a manner that a portion of the article extends beyond the surface of said article-engaging cover and is contacted by the other belt in the assembly and the belts of the assembly are positioned in spaced relationship from each other to permit expansion of the groove means in at least one of the belts when the conveyed article is wedged therein to insure constant gripping of the article; and C. a tension section disposed between said covers to provide longitudinal strength and stability, all of the elements of the belt structure being joined into an integral composite structure to form an endless belt.
Claim 2
Dependent Claim
248 words
A pair of endless belts for use in a belt drive assembly of the type in which two belts cooperate to drive and convey elongated articles in the direction of travel of the belts by engaging the article therebetween, at least one of said belts comprising: A. a drive cover of flexible material forming one surface of the belt to engage the assembly drive means; B. an article-engaging cover of flexible material which is more compressible than the article, forming the other surface of the belt and including groove means therein extending longitudinally of the belt and having an article-gripping portion for receiving the conveyed article, at least one crosssectional dimension of the groove means being less than the corresponding cross-sectional dimension of the article so that each conveyed article may be wedged into said groove means to engage said article-gripping portion thereof in such a manner that a portion of the article extends beyond the surface of said article-engaging cover and is contacted by the other belt in the assembly and the belts of the assembly are positioned in spaced relationship from each other to permit expansion of the groove means in at least one of the belts when the conveyed article is wedged therein to insure constant gripping of the article; and C. a tension section disposed between said covers to provide longitudinal strength and stability, all of the elements of the belt structure being joined into an integral composite structure to form an endless belt.
Claim 3
Dependent Claim
20 words
The belt as claimed in claim 1 wherein said groove means is at least one groove of curvilinear cross section.
Claim 4
Dependent Claim
20 words
The belt as claimed in claim 1 wherein said groove means is at least one groove of polygoNal cross section.
Claim 5
Dependent Claim
41 words
The belt as claimed in claim 2 wherein said grooves having a generally U-shaped cross section and the article has at least a partially arcuate surface at least a substantial portion of which bears against the gripping portion of said grooves.
Claim 6
Dependent Claim
41 words
The belt as claimed in claim 3 wherein said grooves have a generally V-shaped cross section and the article has at least two relatively planar surfaces at least a substantial portion of which bears against the gripping portion of said grooves.
Claim 7
Dependent Claim
41 words
The belt as claimed in claim 3 wherein said grooves have a generally trapezoidal cross section and the article has at least three relatively planar surfaces at least a substantial portion of which bears against the gripping portion of said grooves.
Claim 8
Dependent Claim
106 words
The belt as claimed in claim 1, and wherein: a. said drive cover includes a plurality of driving teeth therein extending transversely of the belt which engage the assembly drive means in order that the article is conveyed at a controlled rate; b. the groove means is a plurality of substantially parallel grooves which maintain each article conveyed in spaced alignment, and the article-gripping portion of each groove includes the entire groove means to provide maximum gripping of each conveyed article; and c. the tension section includes a cord member composed of the material selected from the group consisting of filaments of fiber glass and steel.
Claim 9
Dependent Claim
235 words
In a belt drive assembly, the combination of two flexible endless belts which cooperate to drive and convey elongated articles in the direction of travel of the belt by engaging the article therebetween, said belts comprising: a. a drive cover of flexible material forming one surface of the belt to engage the assembly drive means; b. an article-engaging cover of flexible material, which is more compressible than the article forming the other surface of the belt; c. a tension section disposed between said covers to provide longitudinal strength and stability; and d. the improvement comprising: providing said article cover of at least one of said belts with groove means therein extending longitudinally of the belt and having an article-gripping portion for receiving the conveyed article, at least one cross-sectional dimension of the groove means being less than the corresponding cross-sectional dimension of the article so that each article may be wedged in said groove means to engage said article-gripping portion thereof along its length in such a manner that a portion of the article extends beyond the surface of the gripping cover and is contacted by the other belt in the assembly and in the belts of the assembly being positioned in spaced relationship from each other to permit expansion of the groove means in at least one of the belts when the conveyed article is wedged therein to insure constant gripping of the article.
Claim 10
Dependent Claim
235 words
In a belt drive assembly, the combination of two flexible endless belts which cooperate to drive and convey elongated articles in the direction of travel of the belt by engaging the article therebetween, said belts comprising: a. a drive cover of flexible material forming one surface of the belt to engage the assembly drive means; b. an article-engaging cover of flexible material, which is more compressible than the article forming the other surface of the belt; c. a tension section disposed between said covers to provide longitudinal strength and stability; and d. the improvement comprising: providing said article cover of at least one of said belts with groove means therein extending longitudinally of the belt and having an article-gripping portion for receiving the conveyed article, at least one cross-sectional dimension of the groove means being less than the corresponding cross-sectional dimension of the article so that each article may be wedged in said groove means to engage said article-gripping portion thereof along its length in such a manner that a portion of the article extends beyond the surface of the gripping cover and is contacted by the other belt in the assembly and in the belts of the assembly being positioned in spaced relationship from each other to permit expansion of the groove means in at least one of the belts when the conveyed article is wedged therein to insure constant gripping of the article.
Claim 11
Dependent Claim
54 words
The belt drive assembly as claimed in claim 8 wherein the article-engaging cover of each belt has groove means therein and are positioned in spaced confronting relationship so that the groove means in one belt is in substantial alignment with the groove means of the other belt with the conveyed article being wedged therebetween.
Claim 12
Dependent Claim
34 words
The belt drive assembly as claimed in claim 8 wherein one belt in the assembly has a substantially planar article-engaging cover which contacts a substantially planar surface of the extending portion of the article.
References Cited (Backward Citations)
US3024956A
Cited
US2642280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |