Apparatus for guiding the flow of abrasive slurry over a lapping

Details Apparatus for guiding the flow of abrasive slurry over a lapping Apparatus for guiding the flow of abrasive slurry over a lapping

1987-11-23

1989-07-25

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51263, 51292, B24B 700

Patent

active

048501573

ABSTRACT:
A wiper guide assembly, mounted at the free end of a workpiece carrying arm, can be selectively released to position a neoprene wiper blade against a lapping surface, and retracted whereby the blade is lifted away from the lapping surface. The wiper blade is located just ahead of a workpiece supported by the arm, and between the workpiece and a source of abrasive slurry supplied to the lapping surface. When retracted, the wiper blade is spaced apart from the lapping surface to expose its associated workpiece to the abrasive slurry, permitting more rapid removal of material. When the assembly is released, the wiper blade contacts the lapping surface in a wiping engagement, to guide or divert slurry away from the workpiece, whereby the lapping surface contiguous with and about the workpiece is comparatively free of abrasive slurry.

REFERENCES:
patent: 1618085 (1927-02-01), Hess
patent: 2180952 (1939-11-01), Gattoni
patent: 2299678 (1942-10-01), Boynton
patent: 3270465 (1966-09-01), Decoulos
patent: 4256535 (1981-03-01), Banks
patent: 4270316 (1981-06-01), Kramer et al.
patent: 4347689 (1982-09-01), Hammond
patent: 4459781 (1984-07-01), Li
patent: 4536992 (1985-08-01), Hennenfent et al.
patent: 4590422 (1986-05-01), Milligan

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