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US3118958A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for making cellular products

Assignee: MILDRED M KELLY
•
Filing: 1960-02-10
•
Granted: 1964-01-21
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Expires: 1980-02-10
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Abstract

No abstract record available.

Inventors

  • 👤 John W White

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 03:25
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/30; B01F25/31; B01F25/314; B01F25/3142; B01F25/31421; B01F23/00; B01F23/20; B01F23/23; B01F23/232; B01F25/313; B29; B29B; B29B7/00; B29B7/74; B29B7/7404; B29B7/7409; B29B7/7414; B01F2025/91; B01F2025/919; B01F2025/9191; B01F2025/919125; B01F2101/00; B01F2101/2805; Y; Y10; Y10S; Y10S159/00; Y10S159/04; Y10S261/00; Y10S261/26; Y10S521/00; Y10S521/917

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 186 words
APPARATUS FOR FOAMING MATERIALS WHICH COMPRISES: A HOUSING: A SHAFT ROTATABLY MOUNTED WITHIN SAID HOUSING; MEANS TO ROTATE SID SHAFT; A FIRST HOLLOW POROUS CONIC SECTION COAXIALLY MOUNTED ONTO SAID ROTATABLE SHAFT, THE LINNER SURFACE OF SAID FIRST CONIC SECTION AND THE WALL OF SAID ROTATABLE SHAFT DEFINING A FIRST GAS CHAMBER; A SECOND HOLLOW, POROUS CONIC SECTION AFFIXED TO SAID HOUSING, SAID FIRST CONIC SECTION BEING COAXIALLY DISPOSED WITHIN SID SECOND CONIC SECTION, SAID SECOND CONIC SECTIO SURROUNDING SAID FIRST CONIC SECTION IN CLOSELY SPACED RELATIONSHIP THEREWITH, AND SAID FIRST AND SECOND CONIC SECTIONS HAVING THEIR PROJECTED APEXES LOCATED AT THE SAME END TO FORM A CONTINUALLY DIVERGING CONIC PASSAGEWAY THEREBETWEEN, SAID SECOND CONIC SECTION AND SAID HOUSING DEFINING A SECOND GAS CHAMBER; MEANS FOR SUPPLYING GAS UNDER PRESSURE INTO SAID GAS CHAMBERS, WHEREBY SAID GAS IS FORCED THROUGH SAID POROUS CONIC SECTIONS INTO SAID CONIC PASSAGEWAY IN THE FORM OF A MULTIPLICITY OF GASEOUS BLASTS; AND MEANS FOR CONDUCTING FOAMABLE MATERIAL INTO AND THROUGH SAID CONIC PASSAGEWAY WHEREBY SAID MATERIAL IS SUBJECTED TO SAID GASEOUS BLASTS TO THEREBY UNIFORMLY AND COMPLETELY FOAM SAID MATERIAL.
Claim 2
Dependent Claim 186 words
APPARATUS FOR FOAMING MATERIALS WHICH COMPRISES: A HOUSING: A SHAFT ROTATABLY MOUNTED WITHIN SAID HOUSING; MEANS TO ROTATE SID SHAFT; A FIRST HOLLOW POROUS CONIC SECTION COAXIALLY MOUNTED ONTO SAID ROTATABLE SHAFT, THE LINNER SURFACE OF SAID FIRST CONIC SECTION AND THE WALL OF SAID ROTATABLE SHAFT DEFINING A FIRST GAS CHAMBER; A SECOND HOLLOW, POROUS CONIC SECTION AFFIXED TO SAID HOUSING, SAID FIRST CONIC SECTION BEING COAXIALLY DISPOSED WITHIN SID SECOND CONIC SECTION, SAID SECOND CONIC SECTIO SURROUNDING SAID FIRST CONIC SECTION IN CLOSELY SPACED RELATIONSHIP THEREWITH, AND SAID FIRST AND SECOND CONIC SECTIONS HAVING THEIR PROJECTED APEXES LOCATED AT THE SAME END TO FORM A CONTINUALLY DIVERGING CONIC PASSAGEWAY THEREBETWEEN, SAID SECOND CONIC SECTION AND SAID HOUSING DEFINING A SECOND GAS CHAMBER; MEANS FOR SUPPLYING GAS UNDER PRESSURE INTO SAID GAS CHAMBERS, WHEREBY SAID GAS IS FORCED THROUGH SAID POROUS CONIC SECTIONS INTO SAID CONIC PASSAGEWAY IN THE FORM OF A MULTIPLICITY OF GASEOUS BLASTS; AND MEANS FOR CONDUCTING FOAMABLE MATERIAL INTO AND THROUGH SAID CONIC PASSAGEWAY WHEREBY SAID MATERIAL IS SUBJECTED TO SAID GASEOUS BLASTS TO THEREBY UNIFORMLY AND COMPLETELY FOAM SAID MATERIAL.

References Cited (Backward Citations)

US1971852A Cited
US2559164A Cited
US2658736A Cited
GB694918A Cited
US2791404A Cited
US2825413A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-01-20 1967-07-22 1968-01-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-01-20 1971-07-22 1972-01-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-01-20 1975-07-22 1976-01-21 $7700.00 Window Closed / Lapsed

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