US2614955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure molding laminates
Assignee: LA Darling Co LLC
•
Filing: 1950-01-13
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Granted: 1952-10-21
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Expires: 1970-01-13
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Halsall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:18
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/42; B29C70/44; B29C70/446; B29D; B29D22/00; B29C43/00; B29C43/02; B29C43/10; B29C43/12; B29K; B29K2105/00; B29K2105/06; B29L; B29L2031/00; B29L2031/702; Y; Y10; Y10S; Y10S264/00; Y10S264/53
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
A METHOD OF MOLDING A MANNEQUIN OR SIMILAR DISPLAY FORM OF REENFORCED PLASTIC MATERIAL IN A TWO SECTION MOLD, WHICH COMPRISES COATING THE INTERIOR OF EACH OF SAID SECTIONS WITH A HARDENABLE LIQUID PLASTIC, POLYMERIZING THE PLASTIC TO OBTAIN THE COATING IN A SOFT SOLID STATE, LAYING UP FORAMINOUS REENFORCING SHEET MATERIAL INTIMATE CONTACT WITH THE PLASTIC COATING IN EACH OF SAID MOLD SECTIONS, WITH SAID SHEET MATERIAL EXTENDING BEYOND THE EDGE OF ONE OF SAID MOLD SECTIONS TO PROVIDE A REENFORCING TAB EXTENDING ACROSS THE MATING LINE BETWEEN SAID MOLD SECTIONS WHEN CLOSED AND WITH AT LEAST AN AIR ESCAPE PASSAGE TO THE INTERIOR OF SAID MOLD SECTIONS LEFT UNOBSTRUCTED, PLACING A GENERALLY TUBULAR UNINFLATED BAG OF SHEET MATERIAL HAVING A WALL THICKNESS FROM 0.001 INCH TO 0.010 INCH HAVING AN INFLATED VOLUME GREATER THAN THE VOLUME OF SAID MOLD WHEN CLOSED IN ONE OF SAID MOLD SECTIONS, CLOSING THE MOLD, INTRODUCING FLUID INTO THE BAG AT LOW PRESSURES NOT EXCEEDING ABOUT FIVE POUNDS PER SQUARE INCH, MAINTAINING THE PRESSURE IN THE BAG UNTIL THE PLASTIC MATERIAL HAS POLYMERIZED TO A DEFINITE SET, AND REMOVING THE FLUID PRESSURE FROM THE BAG AND INSERTING THE ENTIRE ASSEMBLY INTO A HEATED OVEN TO FURTHER CURE THE PLASTIC MATERIAL.
Claim 2
Independent Claim
207 words
A METHOD OF MOLDING A MANNEQUIN OR SIMILAR DISPLAY FORM OF REENFORCED PLASTIC MATERIAL IN A TWO SECTION MOLD, WHICH COMPRISES COATING THE INTERIOR OF EACH OF SAID SECTIONS WITH A HARDENABLE LIQUID PLASTIC, POLYMERIZING THE PLASTIC TO OBTAIN THE COATING IN A SOFT SOLID STATE, LAYING UP FORAMINOUS REENFORCING SHEET MATERIAL INTIMATE CONTACT WITH THE PLASTIC COATING IN EACH OF SAID MOLD SECTIONS, WITH SAID SHEET MATERIAL EXTENDING BEYOND THE EDGE OF ONE OF SAID MOLD SECTIONS TO PROVIDE A REENFORCING TAB EXTENDING ACROSS THE MATING LINE BETWEEN SAID MOLD SECTIONS WHEN CLOSED AND WITH AT LEAST AN AIR ESCAPE PASSAGE TO THE INTERIOR OF SAID MOLD SECTIONS LEFT UNOBSTRUCTED, PLACING A GENERALLY TUBULAR UNINFLATED BAG OF SHEET MATERIAL HAVING A WALL THICKNESS FROM 0.001 INCH TO 0.010 INCH HAVING AN INFLATED VOLUME GREATER THAN THE VOLUME OF SAID MOLD WHEN CLOSED IN ONE OF SAID MOLD SECTIONS, CLOSING THE MOLD, INTRODUCING FLUID INTO THE BAG AT LOW PRESSURES NOT EXCEEDING ABOUT FIVE POUNDS PER SQUARE INCH, MAINTAINING THE PRESSURE IN THE BAG UNTIL THE PLASTIC MATERIAL HAS POLYMERIZED TO A DEFINITE SET, AND REMOVING THE FLUID PRESSURE FROM THE BAG AND INSERTING THE ENTIRE ASSEMBLY INTO A HEATED OVEN TO FURTHER CURE THE PLASTIC MATERIAL.
References Cited (Backward Citations)
US2285370A
Cited
US2451131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |