Abrading – Abrading process – Glass or stone abrading
Patent
1998-06-22
2000-08-29
Eley, Timothy V.
Abrading
Abrading process
Glass or stone abrading
451460, 451390, B24B 100
Patent
active
061100161
ABSTRACT:
A two-piece lens block allows for the rotation of an edged lens blank in order to align the cylinder of the lens blank correctly. The lens block includes a substantially cylindrical base having a first surface facing the lens blank and an opposed second surface with a plurality of driving recesses extending into the base from the second surface. A ring member surrounds the base and includes a mounting surface generally adjacent to the lens blank. The ring member is rotatable relative to the base prior to the attachment of the lens blank to the lens block. An edged lens-shaped cavity is provided in the ring member and provides for nearly full surface contact of an attachment alloy with a front surface of the lens blank to alleviate distortion. The two-piece lens block allows edged lens blanks to be surfaced to finished lenses.
REFERENCES:
patent: Re31897 (1985-05-01), Johnson
patent: 2352616 (1944-07-01), Canning
patent: 2509211 (1950-05-01), Clement
patent: 3015196 (1962-01-01), Campbell
patent: 3049766 (1962-08-01), Buckminster
patent: 3140568 (1964-07-01), Beasley
patent: 3192676 (1965-07-01), Buckminster
patent: 3271912 (1966-09-01), Buckminster
patent: 3448549 (1969-06-01), McCall
patent: 3451177 (1969-06-01), Buckminster et al.
patent: 3468366 (1969-09-01), Suddarth
patent: 3499253 (1970-03-01), McCall
patent: 3507076 (1970-04-01), Rudd et al.
patent: 3663983 (1972-05-01), Bole
patent: 3704558 (1972-12-01), Sarofeen
patent: 3994101 (1976-11-01), Coburn et al.
patent: 4118898 (1978-10-01), Godot
patent: 4149344 (1979-04-01), Keane, Jr.
patent: 4158273 (1979-06-01), Olsen et al.
patent: 4287013 (1981-09-01), Ronning
patent: 5421771 (1995-06-01), Wardle
patent: 5462475 (1995-10-01), Kennedy
patent: 5520568 (1996-05-01), Craighead et al.
patent: 5669807 (1997-09-01), Moreau et al.
Coleman Charles R.
Smarto John E.
Eley Timothy V.
Mitchell William C.
Nguyen Dung Van
PPG Industries Ohio Inc.
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