Tool whose shape adapts automatically to the surface of an ophth

Details Tool whose shape adapts automatically to the surface of an ophth Tool whose shape adapts automatically to the surface of an ophth

1988-03-22

1989-05-23

Smith, James G.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

B24D 1700

Patent

active

048317896

ABSTRACT:
This tool whose shape adapts automatically to the surface of an ophthalmic lens is suitable for use as a polisher or as an applicator buffer. It comprises a rigid support (2) having a cavity (5) in one of its faces, together with a buffer (1) constituted by two elastically deformable membranes (7 and 8) which are fixed at their peripheral edges to the side walls of the cavity (5) at a distance from the bottom thereof, thereby defining a space (9) between the membranes which is filled with an incompressible material (11) consituted by small-size grains, with the support (2) including a passage (12) having one end opening out into said space (9) and having its other end connectable to a vacuum source (15).

REFERENCES:
patent: 3858468 (1975-01-01), Pasbrig

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