Disposable lap blank

Details Disposable lap blank Disposable lap blank

1993-09-23

1994-09-27

Lavinder, Jack W.

Abrading

Rigid tool

Rotary disk

269900, 279111, 279126, 451397, 451402, B24D 1700

Patent

active

053497872

ABSTRACT:
A lap blank and holder assembly includes a lap blank having two spaced apart flat surfaces separated by a given thickness and formed from a material capable of compressing about a member inserted into it. The holder has a projection extending outwardly from a front face thereof and is inserted into the material making up the lap to secure it against rotational and shifting movement while being cut in a surfacing machine. This arrangement further allows the assembly to be placed as an assembly in a finishing machine for subsequent polishing of a cut lens surface in an off-axis polishing procedure.

REFERENCES:
patent: 3685214 (1972-08-01), Sarofeen
patent: 3815294 (1974-06-01), Martiros
patent: 4536000 (1985-08-01), Rohm
patent: 4645220 (1987-02-01), Hiestand
patent: 4789424 (1988-12-01), Fornadel
patent: 5076023 (1991-12-01), Saguchi

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