Patent US3157358A successfully refreshed from Google Patents.
US3157358A
Expired / Lapsed
US
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Snow melting control apparatus
Assignee: TDK Micronas GmbH
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Filing: 1962-10-08
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Granted: 1964-11-17
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Expires: 1982-10-08
Abstract
No abstract record available.
Inventors
- 👤 Henry P Birkemeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:24
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/24; E01C11/26; G; G01; G01W; G01W1/00; G01W1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN APPARATUS FOR CONTROLLING THE APPLICATION OF HEAT TO A BODY EXPOSED IN AN AMBIENT OF PROPER TEMPERATURE AND HUMIDITY, A FIRST MOVING MEMBER LOCATED IN A POSITION TO BE SUBJECT TO DEPOSITION THEREON OF SNOW AND ICE, A FIXED MEMBER LOCATED WITH RESPECT TO SAID MOVING MEMBER AND ADAPTED TO RESTRAIN THE MOVEMENT OF SAID MOVING MEMBER WHEN SNOW AND ICE HAVE BUILT UP THEREON, DRIVING MEANS FOR SAID MOVING MEMBER, A CLUTCH INTERPOSED BETWEEN SAID MOVING MEMBER AND SAID DRIVING MEANS, SAID CLUTCH BEING DISENGAGED WHEN RESTRAINT IS IMPOSED ON SAID MOVING MEMBER, MEANS REGULATING THE PERIOD THAT HEAT IS TO BE APPLIED TO SAID BODY, AND CIRCUIT MEANS OPERABLE UPON ACTUATION OF SAID CLUTCH FOR INITIATING THE OPERATION OF SAID LAST NAMED MEANS.
Claim 2
Dependent Claim
126 words
IN APPARATUS FOR CONTROLLING THE APPLICATION OF HEAT TO A BODY EXPOSED IN AN AMBIENT OF PROPER TEMPERATURE AND HUMIDITY, A FIRST MOVING MEMBER LOCATED IN A POSITION TO BE SUBJECT TO DEPOSITION THEREON OF SNOW AND ICE, A FIXED MEMBER LOCATED WITH RESPECT TO SAID MOVING MEMBER AND ADAPTED TO RESTRAIN THE MOVEMENT OF SAID MOVING MEMBER WHEN SNOW AND ICE HAVE BUILT UP THEREON, DRIVING MEANS FOR SAID MOVING MEMBER, A CLUTCH INTERPOSED BETWEEN SAID MOVING MEMBER AND SAID DRIVING MEANS, SAID CLUTCH BEING DISENGAGED WHEN RESTRAINT IS IMPOSED ON SAID MOVING MEMBER, MEANS REGULATING THE PERIOD THAT HEAT IS TO BE APPLIED TO SAID BODY, AND CIRCUIT MEANS OPERABLE UPON ACTUATION OF SAID CLUTCH FOR INITIATING THE OPERATION OF SAID LAST NAMED MEANS.
References Cited (Backward Citations)
US2738927A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |