US3785875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zinc-cadmium antimonide single crystal anisotropic thermoelement
Assignee: Individual
•
Filing: 1971-09-27
•
Granted: 1974-01-15
•
Expires: 1991-09-27
Abstract
Abstract An anisotropic thermoelement is manufactured from one single crystal possessing anisotropic thermal electromotive force in at least two mutually perpendicular directions. A temperature gradient applied to said single crystal at some angle relative the direction of anisotropy of the thermal electromotive force causes the emergence of electromotive force in a direction perpendicular to that of the temperature gradient applied. Used as the single crystal is ZnxCdl xSb solid solution, where x assumes a value greater than zero but less than unity; in a limiting case has a value of 0.99 recurring.
Inventors
- 👤 A Samoilovich
- 👤 K Soliichuk
- 👤 E Osipov
- 👤 I Pilat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:57
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/853
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
14 words
An anisotropic thermoelement as claimed in claim 1 where said predetermined angle is 45*.
Claim 2
Dependent Claim
20 words
An anisotropic thermoelement as claimed in claim 1 where said length of the crystal is greater than its said thickness.
Claim 3
Dependent Claim
15 words
An anisotropic thermoelement as claimed in claim 1 where the value of x is 0.1.
Claim 4
Independent Claim
172 words
A method of producing an output emf responsive to and determined by a temperature differential applied to an anisotropic thermoelement, using a single crystal of a solid solution of Znx Cd1 xSb where 0< x<1, which comprises: determining the values of thermal emfs that can be produced along first, second and third mutually perpendicular crystallographic axes of the crystal; selecting two of saiD crystallographic axes between which the difference of the values of thermal emfs is the maximum; applying a predetermined temperature gradient across the crystal in a first direction which makes a predetermined angle of between 0* and 90* with either one of the two selected axes, said first direction lying in a plane defined by said two selected axes; determining a second direction which also lies in the plane defined by said two selected axes and which is perpendicular to said first direction; and tapping an output emf across faces of the crystal in said second direction, said output emf being proportional to and representative of the applied thermal gradient.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |