US4418594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bottle saw system
Assignee: BP Corp North America Inc
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Filing: 1981-11-13
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Granted: 1983-12-06
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Expires: 2001-11-13
Abstract
Abstract A reclaim system for plastic bottles whereby the bottles are held between moving belts and the contaminated portion sawed from the uncontaminated portion, thereby permitting suitable reclaim of the respective parts. The method of operation is also shown.
Inventors
- 👤 Charles W. Burns, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:28
CPC Classifications
B; B26; B26D; B26D7/00; B26D7/06; B26D7/0625; B23; B23D; B23D47/00; B23D47/04; B23D47/045; B29; B29B; B29B17/00; B29B17/02; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2023/10; B29K2023/12; B29K2027/00; B29K2027/06; B29K2033/00; B29K2033/04; B29K2033/12; B29K2055/00; B29K2055/02; B29K2067/00; B29K2067/006; B29K2711/00; B29K2711/12; B29L; B29L2031/00; B29L2031/712; B29L2031/7158; B29L2031/744; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62; Y10; Y10S; Y10S100/00; Y10S100/902; Y10T; Y10T83/00; Y10T83/04; Y10T83/0405; Y10T83/0419; Y10T83/0429; Y10T83/343; Y10T83/647; Y10T83/6584; Y10T83/6633
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
166 words
Apparatus for cutting plastic bottles comprising a lower and upper support system having inlet and outlet ends, said support system comprising a first generally horizontal support table, an upper support table having a first portion substantially parallel to said support table extending from the outlet end to an intermediate portion of said system spaced less than a bottle diameter above said first support table and a second portion extending from said intermediate portion to said inlet end and upwardly away from said lower support table thereby providing a gradually decreasing distance from the inlet end to said intermediate portion, belts mounted on said upper and lower support tables, drive means adapted to drive said belts, means for adjusting the distance between said upper and lower support tables, a saw mounted on said lower support table at a position between said intermediate portion on the outlet end of said system, and an adjustable chute mounted on said upper support table at the inlet end of said system.
Claim 2
Dependent Claim
166 words
Apparatus for cutting plastic bottles comprising a lower and upper support system having inlet and outlet ends, said support system comprising a first generally horizontal support table, an upper support table having a first portion substantially parallel to said support table extending from the outlet end to an intermediate portion of said system spaced less than a bottle diameter above said first support table and a second portion extending from said intermediate portion to said inlet end and upwardly away from said lower support table thereby providing a gradually decreasing distance from the inlet end to said intermediate portion, belts mounted on said upper and lower support tables, drive means adapted to drive said belts, means for adjusting the distance between said upper and lower support tables, a saw mounted on said lower support table at a position between said intermediate portion on the outlet end of said system, and an adjustable chute mounted on said upper support table at the inlet end of said system.
Claim 3
Dependent Claim
35 words
The apparatus of claim 1 where the angle between the lower support table and the portion of the upper support table extending from the intermediate portion to the inlet end is 5 to 20 degrees.
Claim 4
Dependent Claim
29 words
The apparatus of claim 1 wherein the distance between the lower support table and the first portion of the upper support table is one to one and one-half inches.
Claim 5
Dependent Claim
19 words
The apparatus of claim 1 wherein the adjustable chute is movable transversely across the inlet end of the system.
Claim 6
Dependent Claim
13 words
The apparatus of claim 1 wherein the saw has a carbide tipped blade.
Claim 7
Independent Claim
45 words
A method of cutting a plastic bottle into upper and lower portions measured axially of the bottle which comprises guiding the bottle into a compression zone, compressing the bottle, passing the bottle past a saw, and separately recovering upper and lower portions of the bottle.
Claim 8
Independent Claim
45 words
A method of cutting a plastic bottle into upper and lower portions measured axially of the bottle which comprises guiding the bottle into a compression zone, compressing the bottle, passing the bottle past a saw, and separately recovering upper and lower portions of the bottle.
References Cited (Backward Citations)
US1291811A
Cited
US1561479A
Cited
US1609523A
Cited
US3077827A
Cited
US3734007A
Cited
US3757625A
Cited
US4163406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-05 | 1987-06-06 | 1987-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-05 | 1991-06-06 | 1991-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-05 | 1995-06-06 | 1995-12-06 | $7700.00 | Window Closed / Lapsed |