Mold assembly for making an ocular lens blank

Details Mold assembly for making an ocular lens blank Mold assembly for making an ocular lens blank

1990-10-30

1992-08-11

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Press forming apparatus having opposed press members

Male shaping member and female mold

264 11, 264 27, 425808, 249160, B29D 1100

Patent

active

051374412

ABSTRACT:
An assembly for molding an ocular lens blank which may be lathed into a contact lens or intraocular lens includes a sleeve, and a first and second mold segment placed within the sleeve. After a lens blank is molded in a space between the two segments and the sleeve, the two segments are removed from the sleeve and the second mold segment then functions as a holder for the lens blank during a lathing operation. The second mold segment has an outer cylindrical surface for gripping by a collet, and also has an internal frustoconical recess for a mounting pin, and thus can be used with a variety of lathes known to the optical industry.

REFERENCES:
patent: 3697629 (1972-10-01), Bronstein
patent: 3761208 (1973-09-01), Boudet et al.
patent: 3773868 (1973-11-01), Bronstein
patent: 3840977 (1974-10-01), Dimitracopoulos
patent: 4113224 (1978-09-01), Clark et al.
patent: 4121896 (1978-10-01), Shepherd
patent: 4165158 (1979-08-01), Travnicek
patent: 4166088 (1979-08-01), Neefe
patent: 4179484 (1979-12-01), Neefe
patent: 4188353 (1980-02-01), Neefe
patent: 4197266 (1980-04-01), Clark et al.
patent: 4208364 (1980-06-01), Sheperd
patent: 4208365 (1980-06-01), Le Fevre
patent: 4209289 (1980-06-01), Newcomb et al.
patent: 4229390 (1980-10-01), Neefe
patent: 4239712 (1980-12-01), Neefe
patent: 4254065 (1981-03-01), Ratkowski
patent: 4284399 (1981-08-01), Newcomb et al.
patent: 4347198 (1982-08-01), Ohkada et al.
patent: 4382902 (1983-05-01), Feurer
patent: 4407766 (1983-10-01), Haardt et al.
patent: 4457880 (1984-07-01), Neefe
patent: 4469646 (1984-09-01), Rawlings
patent: 4497754 (1985-02-01), Padoan
patent: 4562018 (1985-12-01), Neefe
patent: 4597918 (1986-07-01), Neefe
patent: 4749530 (1988-06-01), Kunzler
patent: 4786444 (1988-11-01), Hwang
patent: 4836960 (1989-06-01), Spector et al.
patent: 4865779 (1989-09-01), Ihn et al.
patent: 4874561 (1989-10-01), Spector
patent: 4944899 (1990-07-01), Morland et al.
patent: 4955580 (1990-09-01), Seden et al.
patent: 4985186 (1991-01-01), Nose et al.
Machinery's Handbook, 15th ed. New York, The Industrial Press, 1956, pp. 1411-1412.

Affiliated with

Also associated with

Rating

Mold assembly for making an ocular lens blank does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mold assembly for making an ocular lens blank, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mold assembly for making an ocular lens blank will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-343117