← Back to Patent Explorer
US3267994A Expired / Lapsed US ⏱️ 0.0 years remaining

Household conditioning system

Assignee: Motors Liquidation Co
•
Filing: 1964-08-31
•
Granted: 1966-08-23
•
Expires: 1984-08-31
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 William L Sones
  • 👤 James O Elliott
  • 👤 George A Neyhouse

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 14:56
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/06; F24F11/00; F24F11/30; F24F11/62; F24F11/63; F24F11/70; F24F11/72; F24F11/74; F24F11/77; F24F11/80; F24F11/86; F24F11/88; F24F2110/00; F24F2110/10; F24F2140/00

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 168 words
IN COMBINATION, MEANS INCLUDING AN A.C. INDUCTION MOTOR MEANS FOR COOLING A MASS OF AIR, MEANS FOR HEATING THE MASS OF AIR, MEANS INCLUDING A SECOND ELECTRIC MOTOR FOR CIRCULATING THE MASS OF AIR FOR CONDITIONING PREDETERMINED ENVIRONMENTS, MEANS FOR SELECTIVELY CONDITIONING SAID A.C. INDUCTION MOTOR MEANS FOR ENERGIZATION FROM A POWER SOURCE, MEANS FOR SENSING AT LEAST TWO CONDITIONS IN THE ENVIRONMENT AND ADAPTED TO PRODUCE TWO SIGNALS IN PROPORTION RESPECTIVELY TO EACH OF SAID SENSED CONDITIONS, AND A COMPUTER CONTROL MEANS INCLUDING SEMICONDUCTOR SWITCH MEANS IN POWER SUPPLY RELATIONSHIP TO SAID A.C. INDUCTION MOTOR MEANS FOR SELECTIVELY VARYING THE POWER SUPPLY TO SAID A.C. INDUCTION MOTOR MEANS, SAID COMPUTER CONTROL MEANS INCLUDING MEANS FOR SIMULTANEOUSLY PROCESSING SAID SIGNALS TOGETHER TO CONTROL THE VOLTAGE CHARACTERISTIC OF POWER SUPPLIED THROUGH SAID SEMICONDUCTOR SWITCH MEANS TO SAID A.C. INDUCTION MOTOR MEANS WHEREBY THE SUPPLY OF HEAT AND THE COOLING OF THE MASS OF AIR IS REGULATED WITHIN PREDETERMINED LIMITS TO MAINTAIN A SUBSTANTIALLY UNIFORM COMFORT LEVEL IN THE ENVIRONMENT.

References Cited (Backward Citations)

US2429408A Cited
US2608066A Cited
US2744388A Cited
US2918807A Cited
US3181791A Cited
US3203473A Cited
US3131757A Cited
US3171595A Cited
US3166120A Cited
US3182222A Cited
US3170508A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-08-22 1970-02-21 1970-08-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-08-22 1974-02-21 1974-08-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-08-22 1978-02-21 1978-08-23 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag