Patent US3222971A successfully refreshed from Google Patents.
US3222971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roll-fed thermoforming machine
Assignee: NATIONAL CLEVELAND CORP
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Filing: 1963-05-15
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Granted: 1965-12-14
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Expires: 1983-05-15
Abstract
No abstract record available.
Inventors
- 👤 Charles F Gerletz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:54
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/26; B29C51/44; B29C51/445; B26; B26D; B26D1/00; B26D1/01; B26D1/04; Y; Y10; Y10T; Y10T83/00; Y10T83/444; Y10T83/4475; Y10T83/4483; Y10T83/4539; Y10T83/4541; Y10T83/4556; Y10T83/463; Y10T83/4632
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
AN INDEXING AND SHEARING ATTACHMENT FOR ADVANCING SECTION-BY-SECTION A THERMOPLASTIC WEB FROM A SUPPLY ROLL THROUGH THE FORMING STATION OF A THERMOFORMING MACHINE COMPRISING A FRAME ATTACHABLE TO THE DELIVERY END OF THE MACHINE; A DELIVERY TABLE ON THE FRAME; A GRIPPER AND SHEARER CARRIAGE MOUNTED ON SAID FRAME TO TRAVEL ALONG THE LATTER; WEB GRIPPING AND SHEARING MEANS MOUNTED ON SAID CARRIAGE; MEANS TO OPERATE THE WEB GRIPPING AND SHEARING MEANS TO GRIP THE WEB AND CUT OFF A MOLDED TERMINAL SECTION OF THE WEB; A SUBCARRIAGE MOUNTED ON SAID FRAME; POWER-OPERATED MEANS FOR RECIPROCATING SAID SUBCARRIAGE; AND MEANS FOR COUPLING THE GRIPPER AND SHEARER CARRIAGE AND SUBCARRIAGE FOR MOVEMENT TOGETHER INCLUDING INFINITELY VARIABLE MEANS FOR ADJUSTING THE POSITION OF THE GRIPPER AND SHEARER CARRIAGE RELATIVE TO THE SUBCARRIAGE IN INFINITELY SMALL INCREMENTS LONGITUDINALLY OF THE PLASTIC WEB.
Claim 2
Dependent Claim
139 words
AN INDEXING AND SHEARING ATTACHMENT FOR ADVANCING SECTION-BY-SECTION A THERMOPLASTIC WEB FROM A SUPPLY ROLL THROUGH THE FORMING STATION OF A THERMOFORMING MACHINE COMPRISING A FRAME ATTACHABLE TO THE DELIVERY END OF THE MACHINE; A DELIVERY TABLE ON THE FRAME; A GRIPPER AND SHEARER CARRIAGE MOUNTED ON SAID FRAME TO TRAVEL ALONG THE LATTER; WEB GRIPPING AND SHEARING MEANS MOUNTED ON SAID CARRIAGE; MEANS TO OPERATE THE WEB GRIPPING AND SHEARING MEANS TO GRIP THE WEB AND CUT OFF A MOLDED TERMINAL SECTION OF THE WEB; A SUBCARRIAGE MOUNTED ON SAID FRAME; POWER-OPERATED MEANS FOR RECIPROCATING SAID SUBCARRIAGE; AND MEANS FOR COUPLING THE GRIPPER AND SHEARER CARRIAGE AND SUBCARRIAGE FOR MOVEMENT TOGETHER INCLUDING INFINITELY VARIABLE MEANS FOR ADJUSTING THE POSITION OF THE GRIPPER AND SHEARER CARRIAGE RELATIVE TO THE SUBCARRIAGE IN INFINITELY SMALL INCREMENTS LONGITUDINALLY OF THE PLASTIC WEB.
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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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |