Title:
THERMOSTAT
Document Type and Number:
WIPO Patent Application WO1982000219
Kind Code:
A1
Abstract:
Thermostat with a heat sensitive body (5) of ferromagnetic material and a movable magnet (4) cooperating therewith. A pair of contacts (6, 7) which are closed or open depending upon the position of the magnet, said position in turn depending upon the temperature depending magnetic properties of the sensitive body. The magnet (4) is exposed to a counter force, that is oppositely directed to the attraction force, and a spring force on pair of contacts has a contact making action in one position of the magnet and a contact opening action in another position of the magnet. More particularly the counter force and the spring force are exerted by one and the same snap spring, that acts between the movable contact formed as a contact tongue and the magnet.
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Inventors:
RUUTH J (SE)
Application Number:
PCT/SE1981/000188
Publication Date:
January 21, 1982
Filing Date:
June 26, 1981
Export Citation:
Assignee:
RUUTH J
International Classes:
H01H37/58; (IPC1-7): H01H37/58; G05D23/26
Foreign References:
| GB1157380A | 1969-07-09 |
Other References:
FR Brevet d'invention 1 018 908, 1953-01-14, Fig. 7-9, p. 7, col. 1, lines 42- col. 2, line 8, Societe dite: Graviner Manufacturing Company Limited et Societe dite: The Wilkinson Sword Company Limited.
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