US3242689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling system and apparatus
Assignee: Worthington Corp
•
Filing: 1964-03-13
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Granted: 1966-03-29
•
Expires: 1984-03-13
Abstract
No abstract record available.
Inventors
- 👤 Chubb Donald Edward
- 👤 Frederic A Macconnell
- 👤 John C Conrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:26
CPC Classifications
F; F25; F25B; F25B39/00; F25B39/02; F24; F24F; F24F5/00; F24F5/0007; F25B1/00; F25B1/04; F25B2339/00; F25B2339/02; F25B2339/024; F25B2339/0242; F25B2339/04; F25B2339/047; F25B2400/00; F25B2400/04; F25B2400/0411; F25B41/00; F25B41/30; F25B41/31; F25B41/315; Y; Y10; Y10S; Y10S62/00; Y10S62/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
FOR USE IN A REFRIGERATION SYSTEM CIRCULATING A VAPORIZABLE REFRIGERANT AND HAVING COMPRESSION MEANS, CONDENSING MEANS CONNECTED TO THE COMPRESSION MEANS, AND AN EVAPORATOR CONNECTED TO SAID CONDENSING MEANS AND RECEIVING EXPANDED LIQUID CONDENSATE THEREFROM AND DISCHARGING VAPOROUS REFRIGERANT TO THE COMPRESSOR MEANS, SAID EVAPORATOR COMPRISING: (A) A TUBE BUNDLE CARRYING A MEDIUN TO BE COOLED, (B) A SHELL ENCLOSING SAID TUBE BUNDLE AND HOLDING LIQUID AND VAPOROUS REFRIGERANT, SAID SHELL HAVING A LOWER PORTION THEREOF, HOLDING A POOL OF SAID LIQUID REFRIGERANT, (C) A CONDUIT COMMUNICATING THE UPPER PORTION OF SAID SHELL HOLDING VAPORIZED REFRIGERANT WITH SAID LOWER SHELL PORTION HOLDING LIQUID REFRIGERANT, (D) MEANS IN SAID CONDUIT FOR RECEIVING VAPOROUS REFRIGERANT FROM THE EVAPORATOR UPPER PORTION, AND FORMING A HIGH VELOCITY VAPOROUS STREAM THEREOF FOR INTRODUCTION TO LIQUID REFRIGERANT CONTAINED IN THE EVAPORATOR.
Claim 2
Dependent Claim
135 words
FOR USE IN A REFRIGERATION SYSTEM CIRCULATING A VAPORIZABLE REFRIGERANT AND HAVING COMPRESSION MEANS, CONDENSING MEANS CONNECTED TO THE COMPRESSION MEANS, AND AN EVAPORATOR CONNECTED TO SAID CONDENSING MEANS AND RECEIVING EXPANDED LIQUID CONDENSATE THEREFROM AND DISCHARGING VAPOROUS REFRIGERANT TO THE COMPRESSOR MEANS, SAID EVAPORATOR COMPRISING: (A) A TUBE BUNDLE CARRYING A MEDIUN TO BE COOLED, (B) A SHELL ENCLOSING SAID TUBE BUNDLE AND HOLDING LIQUID AND VAPOROUS REFRIGERANT, SAID SHELL HAVING A LOWER PORTION THEREOF, HOLDING A POOL OF SAID LIQUID REFRIGERANT, (C) A CONDUIT COMMUNICATING THE UPPER PORTION OF SAID SHELL HOLDING VAPORIZED REFRIGERANT WITH SAID LOWER SHELL PORTION HOLDING LIQUID REFRIGERANT, (D) MEANS IN SAID CONDUIT FOR RECEIVING VAPOROUS REFRIGERANT FROM THE EVAPORATOR UPPER PORTION, AND FORMING A HIGH VELOCITY VAPOROUS STREAM THEREOF FOR INTRODUCTION TO LIQUID REFRIGERANT CONTAINED IN THE EVAPORATOR.
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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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |