Method for the production of friction plates, synchronizing blocker rings or similar structures
AssigneeBorg-Warner Automotive, Inc.
InventorWalter Bauer
Life of this patent
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Abstract
By complete removal of the friction lining material, grooves or slots are formed in a friction lining made of organic material, the grooves being openings or gaps that are initially closed at the ends. The friction lining is applied as a continuous member onto a support and the ends of the grooves are opened by removal of the friction lining material closing them.
Claims14
A method of forming friction members for use in clutches, brakes and automatic transmissions, comprising a support and a complementary friction lining, formed of an organic material having a paper base, with spaced grooves in and extending completely through the lining material to the support for the flow of oil therethrough, characterized by the steps of forming spaced grooves in the friction lining material by completely removing the lining material so the grooves extend through the material except for rims at the opposite edges thereof, said grooves each extending across the lining material between said rims, applying said friction lining material as a continuous member onto said support, and removing at least one rim to open one end of each groove.
Dependencies are inferred from the claim text.