Title:
PROXIMITY SWITCH AND MANUFACTURE THEREOF
Document Type and Number:
Japanese Patent JP3947576
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a proximity switch; having a ceramic portion, and safe under a high temperature and an erosional environment; and an inexpensive and simple manufacture of the switch.
SOLUTION: A ceramic portion 2 is inserted as a cock body into a metallic housing tubular body, and is fixed by thermal contraction. A soft and ductile, e.g. copper-made sealing layer, is deposited or plated on a joint part 4 to be equipped; and a groove is preferably formed on a contact surface. A seal, inhibiting the transmission of gas and liquid, can be formed by the contraction of the ceramic portion 2 by a sealing layer arranged between the housing tubular body and the ceramic portion 2.
Inventors:
Peter Heimricher
Application Number:
JP18885095A
Publication Date:
July 25, 2007
Filing Date:
July 25, 1995
Export Citation:
Assignee:
Optosis Actien Gezel Shaft
International Classes:
H01H11/00; B23P11/02; H01H36/00; H03K17/95; (IPC1-7): H01H36/00; H01H11/00
Domestic Patent References:
| JP56099933A | ||||
| JP48011258A | ||||
| JP3242386A | ||||
| JP1252587A | ||||
| JP61260936A | ||||
| JP62010202U | ||||
| JP53035204B2 | ||||
| JP57053048U |
Foreign References:
| DE3313826A |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Yukio Iwamoto
Hajime Asamura
Yukio Iwamoto
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