US3097397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic mold
Assignee: —
•
Filing: —
•
Granted: 1963-07-16
•
Expires: 1980-07-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:15
CPC Classifications
B; B29; B29C; B29C33/00; B29C44/00; B29C44/34; B29C44/36; B29C44/38; B29C44/44; B29C44/445; B29C33/30; B29C44/3415; B29C44/3426; Y; Y10; Y10S; Y10S264/00; Y10S264/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A MOLD FOR FORMING ARTICLES FROM EXPANDABLE PLASTIC PARTICLES COMPRISING: A CHEST FORMED OF WALLS OF SHEET MATERIAL, THE INNER WALL SURFACE BEING IN DIRECT CONTACT WITH THE EXPANDABLE PLASTIC PARTICLES, SAID CHEST BEING IMPERFORATE EXCEPT FOR SPACED APERTURES FORMED WITHIN THE WALL THEREOF, A PLURALITY OF SPACED PIPES POSITIONED ADJACENT THE OUTER SURFACE OF SAID APERTURED WALL ALLOWING A MAXIMUM OUTER WALL SURFACE AREA TO BE EXPOSED DIRECTLY TO THE ATMOSPHERE, ALIGNED, OPENINGS FORMED IN EACH OF SAID PIPES, MEANS FOR PROVIDING FLUID COMMUNICATION BETWEEN THE SAID OPENINGS FORMED BY SIDE PIPES AND THE APERTURES FORMED BY SAID WALL, MEANS FOR INJECTING STEAM UNDER PRESSURE INTO SAID PIPES FOR EVEN DISTRIBUTION TO SAID CHEST, AND MEANS FOR COOLING SAID EXPOSED OUTER WALL SURFACES WHEREBY SAID CHEST IS SUBJECTED TO EVEN HEAT DISTRIBUTION AS A RESULT OF EQUALIZED STEAM FLOW THROUGH SAID SPACED PIPES AND TO INSTANTANEOUS COOLING BY SAID COOLING MEANS CONTACTING THE RELATIVELY LARGE EXPOSED OUTER WALL SURFACES BETWEEN SAID SPACED PIPES.
Claim 2
Dependent Claim
164 words
A MOLD FOR FORMING ARTICLES FROM EXPANDABLE PLASTIC PARTICLES COMPRISING: A CHEST FORMED OF WALLS OF SHEET MATERIAL, THE INNER WALL SURFACE BEING IN DIRECT CONTACT WITH THE EXPANDABLE PLASTIC PARTICLES, SAID CHEST BEING IMPERFORATE EXCEPT FOR SPACED APERTURES FORMED WITHIN THE WALL THEREOF, A PLURALITY OF SPACED PIPES POSITIONED ADJACENT THE OUTER SURFACE OF SAID APERTURED WALL ALLOWING A MAXIMUM OUTER WALL SURFACE AREA TO BE EXPOSED DIRECTLY TO THE ATMOSPHERE, ALIGNED, OPENINGS FORMED IN EACH OF SAID PIPES, MEANS FOR PROVIDING FLUID COMMUNICATION BETWEEN THE SAID OPENINGS FORMED BY SIDE PIPES AND THE APERTURES FORMED BY SAID WALL, MEANS FOR INJECTING STEAM UNDER PRESSURE INTO SAID PIPES FOR EVEN DISTRIBUTION TO SAID CHEST, AND MEANS FOR COOLING SAID EXPOSED OUTER WALL SURFACES WHEREBY SAID CHEST IS SUBJECTED TO EVEN HEAT DISTRIBUTION AS A RESULT OF EQUALIZED STEAM FLOW THROUGH SAID SPACED PIPES AND TO INSTANTANEOUS COOLING BY SAID COOLING MEANS CONTACTING THE RELATIVELY LARGE EXPOSED OUTER WALL SURFACES BETWEEN SAID SPACED PIPES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |