US3172160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of thermoplastic moulded articles
Assignee: Vasco Ind Corp
•
Filing: 1963-03-20
•
Granted: 1965-03-09
•
Expires: 1983-03-20
Abstract
No abstract record available.
Inventors
- 👤 Woodhouse Leslie Sinclair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:03
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/02; B29C41/04; B29C41/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
APPARATUS FOR MANUFACTURING HOLLOW THERMOPLASTIC MOULDED ARTICLES COMPRISING A A MOLD MOUNTED FOR ROTATION IN A FRAME WHICH IS ITSELF MOUNTED FOR ROCKING MOVEMENT ABOUT AN AXIS PERPENDICULAR TO THE ACIS OF ROTATION OF THE MOLD, WHEREIN MEANS ARE PROVIDED TO DIRECT A STREAM OR STREAMS OF COOLING AIR ONTO THE MOLD, THE SAID MEANS INCLUDING A NOZZLE MOUNTED SO AS TO ROCK WITH THE SAID FRAME AND SO THAT ROTATION OF THE MOLD IN THE FRAME CAUSES SUCCESSIVE PORTIONS OF THE SURFACE OF THE MOLD TO BE PRESENTED PORTIONS OF THE SURFACE OF THE MOLD TO BE PRESENTED TO SAID STREAM OR STREAMS OF COOLING AIR, AND MEANS TO MOVE SAID NOZZLE IN AND OUT AUTOMATICALLY AS THE MOLD ROTATES SO AS TO MAINTAIN SAID NOZZLE AT A SUBSTANTIALLY CONSTANT DISTANCE FROM THE SURFACE OF A NON-CIRCULAR MOLD.
Claim 2
Dependent Claim
139 words
APPARATUS FOR MANUFACTURING HOLLOW THERMOPLASTIC MOULDED ARTICLES COMPRISING A A MOLD MOUNTED FOR ROTATION IN A FRAME WHICH IS ITSELF MOUNTED FOR ROCKING MOVEMENT ABOUT AN AXIS PERPENDICULAR TO THE ACIS OF ROTATION OF THE MOLD, WHEREIN MEANS ARE PROVIDED TO DIRECT A STREAM OR STREAMS OF COOLING AIR ONTO THE MOLD, THE SAID MEANS INCLUDING A NOZZLE MOUNTED SO AS TO ROCK WITH THE SAID FRAME AND SO THAT ROTATION OF THE MOLD IN THE FRAME CAUSES SUCCESSIVE PORTIONS OF THE SURFACE OF THE MOLD TO BE PRESENTED PORTIONS OF THE SURFACE OF THE MOLD TO BE PRESENTED TO SAID STREAM OR STREAMS OF COOLING AIR, AND MEANS TO MOVE SAID NOZZLE IN AND OUT AUTOMATICALLY AS THE MOLD ROTATES SO AS TO MAINTAIN SAID NOZZLE AT A SUBSTANTIALLY CONSTANT DISTANCE FROM THE SURFACE OF A NON-CIRCULAR MOLD.
References Cited (Backward Citations)
US2573693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |