Patent US2048851A successfully refreshed from Google Patents.
Patent US3103105A successfully refreshed from Google Patents.
US3103105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling system for electrical and electronic equipment cabinets
Assignee: W D IND Ltd
•
Filing: 1961-09-18
•
Granted: 1963-09-10
•
Expires: 1981-09-18
Abstract
No abstract record available.
Inventors
- 👤 Robert S Weil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:49
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/20; H05K7/20009; H05K7/20136; H05K7/20145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
AN AIR COOLING APPARATUS FOR ELECTRONIC AND ELECTRICAL EQUIPMENT COMPRISING A CABINET ENCLOSING SAID EQUIPMENT AND HAVING OPPOSED FIRST AND SECOND AIR VENT OPENINGS FOR CIRCULATING AIR THROUGH SAID CABINET; A MIXING CHAMBER DISPOSED ADJACENT SAID CABINET COMMUNICATING WITH SAID FIRST VENT OPENING IN SAID CABINET AND HAVING INLET OPENINGS COMMUNICATING WITH THE AMBIENT AIR; MEANS FOR REMOVING AIR THROUGH SAID SECOND AIR VENT OPENING IN SAID CABINET; A MOTOR-ACTUATED AIR COMPRESSOR FOR COMPRESSING AMBIENT AIR; AN AIR TURBINE COMMUNICATING WITH SAID COMPRESSOR AND ACTUATED BY THE ADIABATICALLY EXPANDING COMPRESSED AIR THEREFROM; AND AN IMPELLER FAN FOR CIRCULATING A MIXTURE OF AMBIENT AIR AND THE COOLED EXPANDED COMPRESSED AIR DISCHARGED FROM SAID AIR TURBINE, SAID IMPELLER FAN BEING DISPOSED IN SAID MIXING CHAMBER ADJACENT SAID FIRST VENT OPENING, SAID IMPELLER FAN BEING DRIVEN BY SAID AIR TURBINE.
Claim 2
Dependent Claim
137 words
AN AIR COOLING APPARATUS FOR ELECTRONIC AND ELECTRICAL EQUIPMENT COMPRISING A CABINET ENCLOSING SAID EQUIPMENT AND HAVING OPPOSED FIRST AND SECOND AIR VENT OPENINGS FOR CIRCULATING AIR THROUGH SAID CABINET; A MIXING CHAMBER DISPOSED ADJACENT SAID CABINET COMMUNICATING WITH SAID FIRST VENT OPENING IN SAID CABINET AND HAVING INLET OPENINGS COMMUNICATING WITH THE AMBIENT AIR; MEANS FOR REMOVING AIR THROUGH SAID SECOND AIR VENT OPENING IN SAID CABINET; A MOTOR-ACTUATED AIR COMPRESSOR FOR COMPRESSING AMBIENT AIR; AN AIR TURBINE COMMUNICATING WITH SAID COMPRESSOR AND ACTUATED BY THE ADIABATICALLY EXPANDING COMPRESSED AIR THEREFROM; AND AN IMPELLER FAN FOR CIRCULATING A MIXTURE OF AMBIENT AIR AND THE COOLED EXPANDED COMPRESSED AIR DISCHARGED FROM SAID AIR TURBINE, SAID IMPELLER FAN BEING DISPOSED IN SAID MIXING CHAMBER ADJACENT SAID FIRST VENT OPENING, SAID IMPELLER FAN BEING DRIVEN BY SAID AIR TURBINE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |