US3124627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slotted
Assignee: Davidson Rubber Co Inc
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Filing: —
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Granted: 1964-03-10
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Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:03
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/58; B29C33/00; B29C33/38; B29C33/40; B29K; B29K2075/00; Y; Y10; Y10S; Y10S297/00; Y10S297/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
APPARATUS FOR MOLDING RAPIDLY EXPANDING LOW DENSITY, SOFT AND SENSITIVE PLASTIC FOAMS COMPRISING: MOLD WALLS DEFINING A HORIZONTAL AND ESSENTIALLY FLAT CAVITY; A JACKET SURROUNDING SAID MOLD; SAID WALLS BEING ADAPTED FOR RAPID TRANSFER OF HEAT COMPRISING MATERIALS SELECTED FROM THE GROUP CONSISTING IN SHEET METAL, SHEET PLASTIC, FIBERGLASS, REINFORCED EPOXY RESINS AND REINFORCED POLYESTER RESINS; A COVER FOR SAID MOLD; FIRST AND SECOND ABUTTING MATING SUBSTANTIALLY HORIZONTAL MOLD ENCLOSURE SURFACES, SAID FIRST SURFACE BEING ASSOCIATED WITH AND CONNECTED TO SAID MOLD WALL, SAID SECOND SURFACE BEING ASSOCIATED WITH AND CONNECTED TO SAID COVER; SAID FIRST AND SECOND SURFACES DEFINING BETWEEN THEM AN ELONGATED SLOTTED ORIFICE HAVING A WIDTH OF AT LEAST 2 1/2 INCHES FOR DAMPING FLUCTUATIONS IN THE RATE OF GAS BLEED-OFF FROM SAID MOLD WHEN A THERMOSETTING RESINOUS FOAM IS EXPANDED THEREIN; AND MEANS FOR MAINTAINING SAID MOLD WALLS AT A HIGHLY UNIFORM TEMPERATURE INCLUDING HEATED FLUID IN SAID JACKET.
Claim 2
Dependent Claim
153 words
APPARATUS FOR MOLDING RAPIDLY EXPANDING LOW DENSITY, SOFT AND SENSITIVE PLASTIC FOAMS COMPRISING: MOLD WALLS DEFINING A HORIZONTAL AND ESSENTIALLY FLAT CAVITY; A JACKET SURROUNDING SAID MOLD; SAID WALLS BEING ADAPTED FOR RAPID TRANSFER OF HEAT COMPRISING MATERIALS SELECTED FROM THE GROUP CONSISTING IN SHEET METAL, SHEET PLASTIC, FIBERGLASS, REINFORCED EPOXY RESINS AND REINFORCED POLYESTER RESINS; A COVER FOR SAID MOLD; FIRST AND SECOND ABUTTING MATING SUBSTANTIALLY HORIZONTAL MOLD ENCLOSURE SURFACES, SAID FIRST SURFACE BEING ASSOCIATED WITH AND CONNECTED TO SAID MOLD WALL, SAID SECOND SURFACE BEING ASSOCIATED WITH AND CONNECTED TO SAID COVER; SAID FIRST AND SECOND SURFACES DEFINING BETWEEN THEM AN ELONGATED SLOTTED ORIFICE HAVING A WIDTH OF AT LEAST 2 1/2 INCHES FOR DAMPING FLUCTUATIONS IN THE RATE OF GAS BLEED-OFF FROM SAID MOLD WHEN A THERMOSETTING RESINOUS FOAM IS EXPANDED THEREIN; AND MEANS FOR MAINTAINING SAID MOLD WALLS AT A HIGHLY UNIFORM TEMPERATURE INCLUDING HEATED FLUID IN SAID JACKET.
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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) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |