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:
Nov. 08, 1977
Filed:
Apr. 14, 1976
James R Baber, Miamisburg, OH (US);
Ronald J Dershem, Trotwood, OH (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A fluid operating device has separate flow control orifices which must be properly oriented and installed. They are so constructed that they cannot inadvertently be interchanged or installed in a reverse manner. These possibilities are obviated by making one orifice body with legs extending upwardly from the main body portion. The outer edges of the legs touch a circle of larger diameter than the diameter of the main body portion. The other orifice has the upper portion of its main body portion of larger diameter than the first orifice main body portion but of a smaller diameter than the circle touching the outside of the first orifice's legs. The lower portion of the second orifice main body is of smaller diameter than the diameter of the first orifice main body. The second orifice has legs extending from the top of the main body so that a circle touching the outside of these legs has the same diameter as the upper portion of the second orifice main body. The seats for the orifice bodies are shaped to receive the orifice bodies only in their proper orientations. An attempt to install either orifice body in the wrong position will cause the body to extend above its proper assembled position so that the body retainers cannot be installed and completion of the assembly operation cannot be accomplished. Neither orifice body can be installed in the seat provided for the other orifice body. When only one orifice body and seat unit is required, the arrangement prohibits reverse installation of the orifice body.