The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 01, 1978

Filed:

Dec. 07, 1976
Applicant:
Inventors:

Teizo Fujita, Ibaraki, JP;

Shunzo Yoshida, Takatsuki, JP;

Toshio Koizumi, Kashihara, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
335 61 ; 335 59 ;
Abstract

A pneumatic timer is disclosed which includes a base plate, a vertical frame member consisting of a frame perpendicular to the base plate and a horizontal frame. The horizontal frame portion includes a central opening, the vertical frame portion includes a pair of vertically extending grooves. A timing mechanism is received in the central opening in the horizontal frame portion including a displaceable element displaceable axially of the central opening in the base plate and a knob disposed on top of the horizontal frame portion. An electromagnet is fixed inside the vertical frame portion in a region surrounded with the horizontal and vertical frame portions. The electromagnet includes a plunger which has a connecting rod associated therewith and which is vertically movable in response to an input signal and is arranged so that in the normal condition it holds the displaceable element in its initial position but that upon energization of the electromagnet it allows vertically downward displacement of the displaceable element. Each of the pair of grooves in the vertical frame portion includes one of the two arms of a T-shaped lever received in the upper region thereof.


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