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:
Apr. 27, 1999
Filed:
May. 07, 1997
James R Quigley, Lombard, IL (US);
Borg-Warner Automotive, Inc., Sterling Heights, MI (US);
Abstract
A method for making a core plate (42) having multiple friction material segments (54) on the surface where the method includes the use of a die (24). Friction material (34) is first trimmed to conform to die (24) and is then fed into die (24). Die (24) then cuts friction material (34) to form a leading edge (57) where fibers in friction material (34) at leading edge (57) are positioned in a direction toward core plate (42). Friction material (34) is then fed through die (24) which cuts a trailing edge (55) in friction material (34) where fibers in friction material (34) at trailing edge (55) are positioned in a direction toward core plate (42). Cutting of trailing edge (55) is a common cut along trailing edge (55) of a leading segment (54) and leading edge (57) of an immediately following segment (54) such that formation of segments (54) is substantially scrapless with respect to friction material (34). Segment (54) is then positioned on an adhesive (43) on core plate (54) where the fibers at leading and trailing edges (57) and (55), respectively, are positioned in adhesive (43). Core plate (42) is then rotated and the above steps are repeated until a predetermined number of segments (54) are positioned on core plate (42).