Patent US3733941A successfully refreshed from Google Patents.
US3733941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cutting used pneumatic tire casing
Assignee: Individual
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Filing: 1972-01-03
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Granted: 1973-05-22
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Expires: 1992-01-03
Abstract
Abstract A used pneumatic tire casing is fixedly supported from within and about a rotatable shaft. A cutter drive bar is attached to and rotates with the shaft. Cutters are attached to the cutter drive bar. With the tire casing so supported and the cutters moved to pierce the tire casing, the shaft is rotated. The cutter drive bar and cutters rotate with the shaft, sweep through 360* and cut the tire casing into a number of circular portions.
Inventors
- 👤 W Geyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:43
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/16; B26; B26D; B26D1/00; B26D1/01; B26D1/12; B26D1/25; B26D1/34; B26D3/00; B26D3/003; B26D3/005; B26D7/00; B26D7/01; B26D7/015; Y; Y10; Y10T; Y10T82/00; Y10T82/16; Y10T82/16229; Y10T82/16426; Y10T82/16442; Y10T82/16967
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
55 words
Apparatus for cutting tire casings comprising: a. means for fixedly supporting said casing from within and about a rotatable shaft, b. means to rotate said shaft, and c. means adjustably secured to said shaft to rotate therewith and progressively cut said casing into a plurality of circular portions upon rotation of said shaft through 360*.
Claim 2
Dependent Claim
55 words
Apparatus for cutting tire casings comprising: a. means for fixedly supporting said casing from within and about a rotatable shaft, b. means to rotate said shaft, and c. means adjustably secured to said shaft to rotate therewith and progressively cut said casing into a plurality of circular portions upon rotation of said shaft through 360*.
Claim 3
Dependent Claim
50 words
Apparatus as described in claim 1 wherein the means of subparagraph (a) includes an expandable drum in engagement with the bead of said casing, a plurality of shoes in contact with the inner surface of said drum, and means to radially and outwardly move said shoes to expand said drum.
Claim 4
Dependent Claim
24 words
Apparatus as described in claim 2 wherein said expandable drum includes a flange portion to support inner surface of a bead of said casing.
Claim 5
Dependent Claim
38 words
Apparatus as described in claim 1 wherein the means of subparagraph (c) includes an L-shaped cutter drive bar adjustably attached to said shaft and a cutter assembly adjustably attached to each leg of said L-shaped cutter drive bar.
Claim 6
Dependent Claim
29 words
Apparatus as described in claim 4 wherein each cutter assembly comprises a collar, a cutter holder pivotally attached to saiD collar and a cutter attached to said cutter holder.
Claim 7
Dependent Claim
34 words
Apparatus as described in claim 5 wherein the cutter of one cutter assembly cuts the tread of said casing and the cutter of the other cutter assembly cuts adjacent the bead of said casing.
Claim 8
Dependent Claim
25 words
Apparatus as described in claim 6 further including means to vary the cutting angle between the cutter of said other cutter assembly and said casing.
Claim 9
Dependent Claim
106 words
Apparatus as described in claim 3 wherein the means of subparagraph (c) includes an L-shaped cutter drive bar adjustably attached to said shaft, a cutter assembly adjustably attached to each leg of said L-shaped cutter drive bar and comprising a collar mounted on said bar, a cutter holder pivotally attached to said collar and a cutter attached to said cutter holder, the cutter of one cutter assembly cuts the tread of said casing and the cutter of the other cutter assembly cuts adjacent the bead of said casing, and means to vary the cutting angle between the cutter of said other cutter assembly and said casing.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |