US4357173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens cleaning and polishing method
Assignee: B&L International Holdings Corp
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Filing: 1980-10-15
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Granted: 1982-11-02
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Expires: 2000-10-15
Abstract
Abstract A lens cleaning and polishing method utilizes a stretcher frame mounting a soft pliable lens cleaning and polishing cloth. A hand held suction handle is used to hold one side of a contact lens against the cloth. When the concave side is held against the cloth, the cloth is tented with the finger of the user or a similar shaped object to have the cloth conform to the concave surface. When the convex surface is to be polished, it is placed directly against the cloth and pressure applied. In each case, the cloth covers a substantial portion of the curved surface. The cloth is wetted with a polishing cleaning material and the lens is rubbed with respect to the cloth in order to polish and clean the lens rapidly and efficiently in a hand operation.
Inventors
- 👤 Perry Rosenthal
- 👤 Louis Mager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:12
CPC Classifications
G; G02; G02C; G02C13/00; G02C13/008; Y; Y10; Y10S; Y10S134/00; Y10S134/901
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
87 words
A method of cleaning and/or polishing a contact lens having a convex surface and a concave surface, said method comprising, holding said convex surface of said lens with a suction gripping holder, tenting a soft, yieldable cloth stretched substantially flat in a frame by applying point pressure to one side thereof to provide a convex polishing surface for polishing said lens, and rubbing said concave lens surface with respect to said convex polishing surface after first applying a polishing material and thereby polishing said concave lens surface.
Claim 2
Independent Claim
87 words
A method of cleaning and/or polishing a contact lens having a convex surface and a concave surface, said method comprising, holding said convex surface of said lens with a suction gripping holder, tenting a soft, yieldable cloth stretched substantially flat in a frame by applying point pressure to one side thereof to provide a convex polishing surface for polishing said lens, and rubbing said concave lens surface with respect to said convex polishing surface after first applying a polishing material and thereby polishing said concave lens surface.
Claim 3
Dependent Claim
54 words
A method in accordance with the method in claim 1 and further comprising positioning said suction gripping holder on said cleaned concave surface of said lens and engaging said convex surface of said lens with said yieldable cloth to clean said convex surface of said lens by hand rubbing with respect to said cloth.
Claim 4
Independent Claim
74 words
A method of cleaning and polishing a contact lens having a convex surface and an opposed concave surface comprising, holding said concave surface of said lens with a suction gripping holder, tenting a soft, yieldable cloth stretched substantially flat in a frame by moving said convex surface of said lens into said cloth to tent said cloth, and rubbing said tented cloth with respect to said convex surface to clean and/or polish said surface.
Claim 5
Independent Claim
74 words
A method of cleaning and polishing a contact lens having a convex surface and an opposed concave surface comprising, holding said concave surface of said lens with a suction gripping holder, tenting a soft, yieldable cloth stretched substantially flat in a frame by moving said convex surface of said lens into said cloth to tent said cloth, and rubbing said tented cloth with respect to said convex surface to clean and/or polish said surface.
Claim 6
Dependent Claim
21 words
A method in accordance with the method of claim 3 wherein said cloth is wet with a cleaning and/or polishing material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-01 | 1986-05-03 | 1986-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-01 | 1990-05-03 | 1990-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-01 | 1994-05-03 | 1994-11-02 | $7700.00 | Window Closed / Lapsed |