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:
Feb. 13, 1979
Filed:
Jul. 13, 1977
Hikaru Takaoka, Kariya, JP;
Teruaki Inoshita, Toyota, JP;
Takashi Fukuda, Toyota, JP;
Hitoshi Toga, Toyota, JP;
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, JP;
Taihou Kogyo Kabushiki Kaisha, Toyota, JP;
Abstract
A method for manufacturing a shoe for use, in a swash-plate type compressor, which shoe is to be inserted between a swash-plate and a ball for transmitting the motive power of the swash-plate to the piston related, wherein (1) a base material from which the shoe is made, is composed of steel and is on one side provided with a concavity having an annular groove inside; (2) an annular material of copper or other like metal, free from seizure when pressed against steel is put in the concavity before a male die with a projection of semispherical surface configuration is pressed thereinto; and (3) the concavity in the base material will then be deformed into a desired approximately semispherical configuration, while the annular material is spread under pressure between the projection and the base material of the shoe to cover the surface of the concavity to form a spherically deformed concavity. Shoes made in this way are highly resistant to high-speed operation, heavy-load, and impact. They are furthermore, extremely economical in manufacturing, and free from seizure or abnormal wearing even in case of a lubrication shortage.