Coating apparatus – With means to apply electrical and/or radiant energy to work...
Patent
1987-10-29
1990-01-23
Hoag, Willard
Coating apparatus
With means to apply electrical and/or radiant energy to work...
118 52, B05C 1100, B05C 102
Patent
active
048951021
ABSTRACT:
A spin coater suitable for spin coating spectacle lens molds with polymerizable coating composition. The spin coater includes a drawer which rotatably mounts at least one chuck thereon, which drawer is slidable between a front and rear position within a housing to sequentially allow application of a coating by the spinning chucks in the front chamber of the housing, followed by polymerization thereof in the rear chamber. Each chuck of the spin coater is provided with a mold seat defined by a ledge and adjacent lip, the lip automatically centering the mold in the seat axis by virtue of its dimensions in relation to the mold. The chuck also has a lengthwise resilient vacuum conduit, preferably in the form of a bellows, which has an open end which can sealingly engage against a seated mold, such that when a vacuum is applied through the vacuum conduit the mold is urged firmly against the ledge of the mold seat. A method of producing a coated spectacle lens, preferably using such a spin coater, involves providing two different abrasion resistent coatings on front and rear molding surfaces of a form, which coatings are only partially polymerized. The form is then filled with resin which is cured and the coated formed lens is separated from the form. The coatings on the lens are then preferably further polymerized by exposure to actinic light.
REFERENCES:
patent: 2193742 (1940-03-01), Rohm et al.
patent: 2542386 (1941-02-01), Beattie
patent: 2964501 (1930-12-01), Sarofeen
patent: 3070846 (1963-01-01), Schrier
patent: 3426727 (1969-02-01), Balain et al.
patent: 3444326 (1970-02-01), Upton
patent: 3538883 (1970-11-01), Polin
patent: 3794314 (1974-02-01), Coburn et al.
patent: 3968305 (1976-07-01), Oshima et al.
patent: 3971872 (1976-07-01), LeBoeuf
patent: 3978178 (1976-08-01), Oshima et al.
patent: 4164099 (1979-08-01), Grant
patent: 4251474 (1981-02-01), Blandin
patent: 4315705 (1982-02-01), Flint
patent: 4347302 (1982-08-01), Gotman
patent: 4357006 (1982-11-01), Hayes
patent: 4476162 (1984-10-01), Ireland
patent: 4544572 (1985-10-01), Sandvig et al.
patent: 4550679 (1985-11-01), Pipa et al.
patent: 4603867 (1986-08-01), Babb et al.
patent: 4758448 (1988-07-01), Sandvig et al.
patent: 4791261 (1988-12-01), Phinney et al.
patent: 4823735 (1989-04-01), Pichel et al.
patent: 4827867 (1989-05-01), Takai et al.
Dawson Ralph C.
Griffith Robert L.
Kachel Theodore V.
Millar Robert W.
Rydeen Clarence F.
Hoag Willard
Techna Vision Incorporated
LandOfFree
Spin coater does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Spin coater, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin coater will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-640356