Cleaning and liquid contact with solids – Processes – Including use of vacuum – suction – or inert atmosphere
Patent
1993-07-14
1995-09-26
Dean, Richard O.
Cleaning and liquid contact with solids
Processes
Including use of vacuum, suction, or inert atmosphere
134 37, 134 42, B08B 500, B08B 504, B08B 304
Patent
active
054531322
ABSTRACT:
A method for cleaning an optical surface such as an eyeglass lens involves the use of a cleaning head having a contact seal for engaging around the perimeter of the surface to be cleaned. The cleaning head defines a shallow cleaning cavity which includes the optical surface and the surface is cleaned by generating in the cavity a high velocity air flow across the surface, introducing a cleaning fluid into the air flow so as to scrub the surface, and terminating the introduction of cleaning fluid while maintaining the air flow to remove any residual cleaning fluid. A particular application of the method to simultaneously clean all four surfaces of the eyeglass lenses of a pair of 3-D glasses is also disclosed.
REFERENCES:
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patent: 4470248 (1988-04-01), Thro et al.
patent: 4691725 (1987-09-01), Parisi
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patent: 5143101 (1992-09-01), Mor
patent: 5279674 (1994-01-01), Ohta et al.
Vol. 16, No. 163 (P-1341) 21 Apr. 1992 & JP,A,04012381 (Ricoh Co. Ltd.) 16 Jan. 1992--see abstract.
Vol. 13, No. 17 (P0813) 17 Jan. 1989 & JP,A,63 221 318 (Aisin Seiki Co. Ltd.) 14 Sep. 1988--see abstract.
Vol. 15, No. 388 (C-872) 2 Oct. 1991 & JP,A,03 157 174 (Mita Ind. Co. Ltd.) 5 Jul. 1991--see abstract.
Vol. 11, No. 38 (C-401) (2485) 4 Feb. 1987 & JP,A,61 204 386 (Naniwa Seitei KK) 10 Sep. 1986--see abstract.
Research Disclosure, No. 335, Mar. 1992, Emsworth GB, p. 202, XP000301104 `non-contact/Non-destructive material remover`.
Dean Richard O.
El-Arini Zeinab
Imax Corporation
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