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US3068156A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of producing molds for molding gloves

Assignee: United Electro Plastics Corp
•
Filing: 1960-07-18
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Granted: 1962-12-11
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Expires: 1980-07-18
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Abstract

No abstract record available.

Inventors

  • 👤 Miles S Efron

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 08:23
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/02; B29C41/14; B29D; B29D99/00; B29D99/0064; B29D99/0067; B29L; B29L2031/00; B29L2031/48; B29L2031/4842; B29L2031/4864

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 280 words
THE METHOD OF PRODUCING A MOLD FOR USE IN THE MANUFACTURE OF ONE PIECE SIMULATED LEATHER GLOVES, SAID METHOD COMPRISING FILLING THE INTERIOR OF A FLEXIBLE LEATHER GLOVE WITH A FIRST THERMOPLASTIC MATERIAL IN LIQUID FORM AND ALLOWING SAME TO BECOME SET TO RENDER THE GLOVE RELATIVELY RIGID, COATING THE EXTERIOR OF SAID RIGIDIFIED GLOVE WITH A RELATIVELY RIGIDLY CURING SILICONE RUBBER WHICH IS SEPARABLE FROM SAID GLOVE UPON CURING, CURING SAID RUBBER COATING, THE CURING TEMPERATURE OF SAID RUBBER BEING LOWER THAN THE HEAT DISTORTION TEMPERATURE OF SAID FIRST THERMOPLASTIC MATERIAL, REMOVING SAID FIRST THERMOPLASTIC STUFFING MATERIAL BY LIQUIFYING SAID FIRST THERMOPLASTIC MATERIAL THEREBY RENDERING SAID GLOVE AGAIN FLEXIBLE TO FACILITATE THE REMOVAL THEREOF FROM WITHIN THE CURED RUBBER, REMOVING SAID FLEXIBLE GLOVE FROM WITHIN SAID CURED RUBBER SO AS TO PRODUCE A RUBBER FEMALE PATTERN THEREFROM, COATING THE INTERIOR OF SAID RUBBER FEMALE PATTERN WITH A GENERALLY UNIFORM LINING OF A SECOND THERMOPLASTIC MATERIAL WHICH IS STRONGER THAN SAID FIRST THERMOPLASTIC MATERIAL AND WHICH IS SEPARABLE FROM SAID CURED SILICONE RUBBER UPON CURING, SAID SECOND THERMOPLASTIC MATERIAL HAVING A LOWER CURING TEMPERATURE THAN THE HEAT DISTORTION TEMPERATURE OF SAID RUBBER, CURING SAID LINING FORM A HOLLOW MALE PATTERN, REMOVING SAID LINING FROM SAID RUBBER FEMALE PATTERN SO AS TO LEAVE SAID FEMALE PATTERN INTACT, THEREAFTER INTRODUCING INTO THE HOLLOW MALE PATTERN A HARDENABLE THERMOPLASTIC MATERIAL AND PERMITTING THE SAME TO HARDEN TO RENDER THE MALE PATTERN RELATIVELY RIGID, COATING THE EXTERIOR OF SAID MALE PATTERN WITH METAL, AND SEPARATING SAID METAL COATING FORM SAID MALE PATTERN SO AS TO FORM A METALLIC FEMALE MOLD, THE INTERIOR OF WHICH SIMULATES THE REVERSE OF THE SURFACE CHARACATERISTICS OF SAID GLOVE.
Claim 2
Independent Claim 280 words
THE METHOD OF PRODUCING A MOLD FOR USE IN THE MANUFACTURE OF ONE PIECE SIMULATED LEATHER GLOVES, SAID METHOD COMPRISING FILLING THE INTERIOR OF A FLEXIBLE LEATHER GLOVE WITH A FIRST THERMOPLASTIC MATERIAL IN LIQUID FORM AND ALLOWING SAME TO BECOME SET TO RENDER THE GLOVE RELATIVELY RIGID, COATING THE EXTERIOR OF SAID RIGIDIFIED GLOVE WITH A RELATIVELY RIGIDLY CURING SILICONE RUBBER WHICH IS SEPARABLE FROM SAID GLOVE UPON CURING, CURING SAID RUBBER COATING, THE CURING TEMPERATURE OF SAID RUBBER BEING LOWER THAN THE HEAT DISTORTION TEMPERATURE OF SAID FIRST THERMOPLASTIC MATERIAL, REMOVING SAID FIRST THERMOPLASTIC STUFFING MATERIAL BY LIQUIFYING SAID FIRST THERMOPLASTIC MATERIAL THEREBY RENDERING SAID GLOVE AGAIN FLEXIBLE TO FACILITATE THE REMOVAL THEREOF FROM WITHIN THE CURED RUBBER, REMOVING SAID FLEXIBLE GLOVE FROM WITHIN SAID CURED RUBBER SO AS TO PRODUCE A RUBBER FEMALE PATTERN THEREFROM, COATING THE INTERIOR OF SAID RUBBER FEMALE PATTERN WITH A GENERALLY UNIFORM LINING OF A SECOND THERMOPLASTIC MATERIAL WHICH IS STRONGER THAN SAID FIRST THERMOPLASTIC MATERIAL AND WHICH IS SEPARABLE FROM SAID CURED SILICONE RUBBER UPON CURING, SAID SECOND THERMOPLASTIC MATERIAL HAVING A LOWER CURING TEMPERATURE THAN THE HEAT DISTORTION TEMPERATURE OF SAID RUBBER, CURING SAID LINING FORM A HOLLOW MALE PATTERN, REMOVING SAID LINING FROM SAID RUBBER FEMALE PATTERN SO AS TO LEAVE SAID FEMALE PATTERN INTACT, THEREAFTER INTRODUCING INTO THE HOLLOW MALE PATTERN A HARDENABLE THERMOPLASTIC MATERIAL AND PERMITTING THE SAME TO HARDEN TO RENDER THE MALE PATTERN RELATIVELY RIGID, COATING THE EXTERIOR OF SAID MALE PATTERN WITH METAL, AND SEPARATING SAID METAL COATING FORM SAID MALE PATTERN SO AS TO FORM A METALLIC FEMALE MOLD, THE INTERIOR OF WHICH SIMULATES THE REVERSE OF THE SURFACE CHARACATERISTICS OF SAID GLOVE.

References Cited (Backward Citations)

US2473723A Cited
US2476994A Cited
US2538160A Cited
US2788555A Cited
US2949410A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1965-12-10 1966-06-11 1966-12-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1969-12-10 1970-06-11 1970-12-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1973-12-10 1974-06-11 1974-12-11 $7700.00 Window Closed / Lapsed

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