Patent US3223500A successfully refreshed from Google Patents.
US3223500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas module systems for heat transfer and/or fluid support of glass or other sheet materials
Assignee: PPG Industries Inc
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Filing: 1962-11-07
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Granted: 1965-12-14
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Expires: 1982-11-07
Abstract
No abstract record available.
Inventors
- 👤 George W Mission
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:45
CPC Classifications
C; C03; C03B; C03B27/00; C03B27/04; C03B27/0404; B; B21; B21C; B21C47/00; B21C47/34; B21C47/3466; B21C47/3475; C03B27/044; C03B27/048; C03B29/00; C03B29/04; C03B29/06; C03B29/08; C03B29/12; C03B35/00; C03B35/14; C03B35/22; C03B35/24; C03B35/246; C03B2225/00; C03B2225/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
60 words
APPARATUS FOR EMITTING A FLOW OF GAS COMPRISING A PRISMATIC BODY, A CENTRAL CAVITY BENEATH ONE SURFACE OF SAID BODY, A PLURALITY OF SPACE GROOVES IN SAID ONE SURFACE CURVED IN THE PLANE OF SAID SURFACE AND EXTENDING OUTWARDLY FROM THE PROJECTION OF SAID CENTRAL CAVITY ON SAID SURFACE, AND A RESTRICTIVE ORIFICE BETWEEN SAID CENTRAL CAVITY AND EACH GROOVE.
Claim 2
Dependent Claim
60 words
APPARATUS FOR EMITTING A FLOW OF GAS COMPRISING A PRISMATIC BODY, A CENTRAL CAVITY BENEATH ONE SURFACE OF SAID BODY, A PLURALITY OF SPACE GROOVES IN SAID ONE SURFACE CURVED IN THE PLANE OF SAID SURFACE AND EXTENDING OUTWARDLY FROM THE PROJECTION OF SAID CENTRAL CAVITY ON SAID SURFACE, AND A RESTRICTIVE ORIFICE BETWEEN SAID CENTRAL CAVITY AND EACH GROOVE.
Claim 3
Dependent Claim
133 words
IN A METHOD OF HEAT TRANSFER WHEREIN GAS IS DIRECTED AGAINST A SHEET TO BE SUBJECTED TO SUCH TRANSFER THROUGH A PLURALITY OF SPACED OUTLETS AND WHEREIN THE GAS AT A TEMPERATURE DIFFERENT FROM THAT OF THE SHEET FLOWS IN CONTACT WITH THE SHEET BETWEEN SAID OUTLETS AND THE SHEET, THE IMPROVEMENT WHICH COMPRISES DIRECTING A PLURALITY OF STREAMS OF THE GAS FROM SOURCE POINTS IN SAID OUTLETS IN DIRECTIONS WHICH ARE SUBSTANTIALLY PARALLEL TO AND ALONG THE SURFACE OF SAID SHEET OPPOSITE SAID OUTLEST, CHANGING THE DIRECTION OF EACH OF SAID STREAMS AT A POINT SPACED FROM THE SOURCE THEREOF TO ANOTHER DIRECTION SUBSTANTIALLY PARALLEL TO AND ALONG SAID SURFACE, AND SUPPLYING ENOUGH OF SAID GAS TO SAID STREAMS TO CAUSE THE STREAMS TO OVERFLOW THE OUTLETS AND CONTACT THE SHEET SURFACE.
Claim 4
Dependent Claim
133 words
IN A METHOD OF HEAT TRANSFER WHEREIN GAS IS DIRECTED AGAINST A SHEET TO BE SUBJECTED TO SUCH TRANSFER THROUGH A PLURALITY OF SPACED OUTLETS AND WHEREIN THE GAS AT A TEMPERATURE DIFFERENT FROM THAT OF THE SHEET FLOWS IN CONTACT WITH THE SHEET BETWEEN SAID OUTLETS AND THE SHEET, THE IMPROVEMENT WHICH COMPRISES DIRECTING A PLURALITY OF STREAMS OF THE GAS FROM SOURCE POINTS IN SAID OUTLETS IN DIRECTIONS WHICH ARE SUBSTANTIALLY PARALLEL TO AND ALONG THE SURFACE OF SAID SHEET OPPOSITE SAID OUTLEST, CHANGING THE DIRECTION OF EACH OF SAID STREAMS AT A POINT SPACED FROM THE SOURCE THEREOF TO ANOTHER DIRECTION SUBSTANTIALLY PARALLEL TO AND ALONG SAID SURFACE, AND SUPPLYING ENOUGH OF SAID GAS TO SAID STREAMS TO CAUSE THE STREAMS TO OVERFLOW THE OUTLETS AND CONTACT THE SHEET SURFACE.
References Cited (Backward Citations)
US1622817A
Cited
US756600A
Cited
US820205A
Cited
US2042610A
Cited
US2848820A
Cited
FR1149169A
Cited
US3062520A
Cited
US3048383A
Cited
US3069965A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |