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:
Mar. 13, 1984
Filed:
Mar. 02, 1981
Applicant:
Inventor:
John E McCullough, Carlisle, MA (US);
Assignee:
Arthur D. Little, Inc., Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01C / ; F01C / ; B23P / ;
U.S. Cl.
CPC ...
418 55 ; 2915 / ; 2915 / ; 2952 / ;
Abstract
A two-piece scroll member, for use in scroll apparatus, is fabricated by seating a separately formed involute wrap in an involute channel cut in the end plate. The channel has at least one reentrant groove and the surface of the wrap is configured to engage the groove. Locking means are coined into the groove to rigidly affix the wrap to the end plate.