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.
Patent No.:
Date of Patent:
Sep. 12, 1989
Filed:
Nov. 28, 1988
Noriyuki Matsuoka, Tokyo, JP;
Junji Ishida, Tokyo, JP;
Abstract
A socket for the use of an electric part has contacts disposed in such a manner as to contact with contact pieces or leads of an electric part and a stage with the electric part supported thereon and able to move between a lower position where the contact pieces are brought into contact with the contacts and an upper position where the contact pieces are brought out of contact with the contacts. The socket further has a swingable crankshaft as means for restraining the stage in the upper or lower position. The crankshaft is provided with a crank bar portion disposed in such a manner as to vertically move upward and downward while supporting the stage and to push up the stage during a raising movement thereof and a crank arm portion which is swung about the crank bar portion and engaged with lock means thereby to restrain the stage in the upper and lower positions.