US3285470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally actuated devices
Assignee: Yeda Research and Development Co Ltd
•
Filing: 1964-07-03
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Granted: 1966-11-15
•
Expires: 1984-07-03
Abstract
No abstract record available.
Inventors
- 👤 Frei Ephraim Heinrich
- 👤 Leibinzohn Saul
- 👤 Shtrikman Shmuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:37
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; G05D23/024; Y; Y10; Y10S; Y10S29/00; Y10S29/035; Y10S428/00; Y10S428/913; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49865; Y10T83/00; Y10T83/869; Y10T83/8776; Y10T83/8782; Y10T83/8784
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
120 words
A METHOD FOR PREPARING A FERRO-ELASTIC ELEMENT FOR USE IN OR A THERMALLY ACTUATED DEVICE, SAID ELEMENT BEING CONSTITUTED OF A BODY OF A FERRO-ELASTIC MATERIAL CONSISTING ESSENTIALLY OF GOLD-CADMIUM ALLOY CONTAINING SUBSTANTIALLY EQUAL PROPORTIONS BY WEIGHT OF GOLD AND CADMIUM AND POSSESSING A PREDETERMINED OPERATIVE SHAPE IN ITS B PHASE AT TEMPERATURES ABOVE ITS TRANSITION TEMPERATURE AND A NON-OPERATIVE SHAPE IN ITS B'' PHASE AT TEMPERATURES BELOW ITS TRANSITION TEMPERATURE, AND SAID MATERIAL RETURNING TO SAID OPERATIVE SHAPE WHENEVER HEATED TO ITS B PHASE, WHICH COMPRISES HEATING SAID BODY ABOVE ITS TRANSITION TEMPERATURE, PRE-SHAPING THE BODY INTO SAID OPERATIVE SHAPE, PERMITTING THE PRE-SHAPED MATERIAL TO COOL BELOW ITS TRANSITION TEMPERATURE, AND PLACING THE COOLED BODY IND SAID NON-OPERATIVE SHAPE.
Claim 2
Independent Claim
120 words
A METHOD FOR PREPARING A FERRO-ELASTIC ELEMENT FOR USE IN OR A THERMALLY ACTUATED DEVICE, SAID ELEMENT BEING CONSTITUTED OF A BODY OF A FERRO-ELASTIC MATERIAL CONSISTING ESSENTIALLY OF GOLD-CADMIUM ALLOY CONTAINING SUBSTANTIALLY EQUAL PROPORTIONS BY WEIGHT OF GOLD AND CADMIUM AND POSSESSING A PREDETERMINED OPERATIVE SHAPE IN ITS B PHASE AT TEMPERATURES ABOVE ITS TRANSITION TEMPERATURE AND A NON-OPERATIVE SHAPE IN ITS B'' PHASE AT TEMPERATURES BELOW ITS TRANSITION TEMPERATURE, AND SAID MATERIAL RETURNING TO SAID OPERATIVE SHAPE WHENEVER HEATED TO ITS B PHASE, WHICH COMPRISES HEATING SAID BODY ABOVE ITS TRANSITION TEMPERATURE, PRE-SHAPING THE BODY INTO SAID OPERATIVE SHAPE, PERMITTING THE PRE-SHAPED MATERIAL TO COOL BELOW ITS TRANSITION TEMPERATURE, AND PLACING THE COOLED BODY IND SAID NON-OPERATIVE SHAPE.
Claim 3
Dependent Claim
176 words
A THERMALLY ACTUATED DEVICE INCLUDING: AT LEAST ONE FERRO-ELASTIC ELEMENT CONSTITUTED OF A BODY OF A FERRO-ELASTIC MATERIAL CONSISTING ESSENTIALLY OF A GOLD-CADMIUM ALLOY CONTAINING SUBSTANTIALLY EQUAL PROPORTIONS BY WEIGHT OF GOLD AND CADMIUM AND POSSESSING A PREDETERMINED OPERATIVE SHAPE IN ITS B PHASE AT TEMPERATURE ABOVE ITS TRANSITION TEMPERATURE AND A NON-OPERATIVE SHAPE IN ITS B'' PHASE AT TEMPERATURES BELOW ITS TRANSITION TEMPERATURE, SAID MATERIAL RETURNING TO SAID OPERATIVE SHAPE WHENEVER HEATED TO ITS B PHASE, WHICH ELEMENT HAS BEEN FORMED BY HEATING SAID BODY ABOVE ITS TRANSITION TEMPERATURE, PRE-SHAPING THE BODY INTO SAID OPERATIVE SHAPE, PERMITTING THE PRE-SHAPED MATERIAL TO COOL BELOW ITS TRANSITION TEMPERATURE, AND PLACING THE COOLED BODY IN SAID NON-OPERATIVE SHAPE; AND SPRING MEANS TENDING TO BIASE SAID ELEMENT INTO ITS NONOPERATIVE SHAPE, THE ELASTIC FORCE PRODUCED BY SAID SPRING MEANS BEING INSUFFICIENT TO BIAS SAID ELEMENT INTO ITS NON-OPERATIVE SHAPE WHEN THE FERRO-ELASTIC MATERIAL THEREOF IS IN ITS B PHASE BUT BEING SUFFICIENT TO BIAS SAID ELEMENT INTO ITS NON-OPERATIVE SHAPE WHEN THE FERRO-ELASTIC MATERIAL IS IN ITS B'' PHASE.
Claim 4
Dependent Claim
176 words
A THERMALLY ACTUATED DEVICE INCLUDING: AT LEAST ONE FERRO-ELASTIC ELEMENT CONSTITUTED OF A BODY OF A FERRO-ELASTIC MATERIAL CONSISTING ESSENTIALLY OF A GOLD-CADMIUM ALLOY CONTAINING SUBSTANTIALLY EQUAL PROPORTIONS BY WEIGHT OF GOLD AND CADMIUM AND POSSESSING A PREDETERMINED OPERATIVE SHAPE IN ITS B PHASE AT TEMPERATURE ABOVE ITS TRANSITION TEMPERATURE AND A NON-OPERATIVE SHAPE IN ITS B'' PHASE AT TEMPERATURES BELOW ITS TRANSITION TEMPERATURE, SAID MATERIAL RETURNING TO SAID OPERATIVE SHAPE WHENEVER HEATED TO ITS B PHASE, WHICH ELEMENT HAS BEEN FORMED BY HEATING SAID BODY ABOVE ITS TRANSITION TEMPERATURE, PRE-SHAPING THE BODY INTO SAID OPERATIVE SHAPE, PERMITTING THE PRE-SHAPED MATERIAL TO COOL BELOW ITS TRANSITION TEMPERATURE, AND PLACING THE COOLED BODY IN SAID NON-OPERATIVE SHAPE; AND SPRING MEANS TENDING TO BIASE SAID ELEMENT INTO ITS NONOPERATIVE SHAPE, THE ELASTIC FORCE PRODUCED BY SAID SPRING MEANS BEING INSUFFICIENT TO BIAS SAID ELEMENT INTO ITS NON-OPERATIVE SHAPE WHEN THE FERRO-ELASTIC MATERIAL THEREOF IS IN ITS B PHASE BUT BEING SUFFICIENT TO BIAS SAID ELEMENT INTO ITS NON-OPERATIVE SHAPE WHEN THE FERRO-ELASTIC MATERIAL IS IN ITS B'' PHASE.
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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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |