Patent US4979337A successfully refreshed from Google Patents.
US4979337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polishing tool for contact lenses and associated method
Assignee: Individual
•
Filing: 1986-10-03
•
Granted: 1990-12-25
•
Expires: 2006-10-03
Abstract
Abstract A polishing tool for contact lenses and an associated method is provided. The polishing tool is comprised of a base, an exteriorly convex resilient polishing head, and a polishing cloth. The polishing head is made of a suitable resilient material, said material allowing the polishing head to better conform to the interior portion of the contact lens. The method of the present invention involves connecting the polishing tool to a rotatable shaft and exposing the rotating polishing head to the interior of the contact lens. The polishing head can be adapted, in another embodiment, to polish the edges and the outside and peripheral bevels of a contact lens.
Inventors
- 👤 Arthur G. Duppstadt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:11
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/01; Y; Y10; Y10S; Y10S451/00; Y10S451/921
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
132 words
A polishing tool for a contact lens comprising: a body having a base and a resilient polishing head; a polishing member which is a non-abrasive polishing cloth, in intimate surface-to-surface contact with said polishing head; said resilient polishing head being made of material selected from the group consisting of synthetic rubber, tetrafluoroethylene, nylon, and acetal resins; said resilient polishing head being convexly curved to imitate the configuration of the interior portion of a contact lens; said resilient polishing head having a hardness of about 30 to 90 durometer hardness; said resilient polishing head having a diameter of about 3/8" to 1"; and said resilient polishing head having a central dome and an annular ridge spaced from said central dome, and an annular recess disposed between said central dome and said annular ridge.
Claim 2
Dependent Claim
132 words
A polishing tool for a contact lens comprising: a body having a base and a resilient polishing head; a polishing member which is a non-abrasive polishing cloth, in intimate surface-to-surface contact with said polishing head; said resilient polishing head being made of material selected from the group consisting of synthetic rubber, tetrafluoroethylene, nylon, and acetal resins; said resilient polishing head being convexly curved to imitate the configuration of the interior portion of a contact lens; said resilient polishing head having a hardness of about 30 to 90 durometer hardness; said resilient polishing head having a diameter of about 3/8" to 1"; and said resilient polishing head having a central dome and an annular ridge spaced from said central dome, and an annular recess disposed between said central dome and said annular ridge.
Claim 3
Dependent Claim
28 words
The polishing tool of claim 1, including said annular recess generally conforming in size and shape to the edges and outside and peripheral bevels of said contact lens.
Claim 4
Independent Claim
90 words
A method of polishing a contact lens comprising providing a polishing tool consisting of a body, a resilient polishing head having a central dome and an annular ridge spaced from said central dome and an annular recess disposed between said central dome and said annular ridge, and a polishing member which is a non-abrasive polishing cloth in overlying relationship with said polishing head, mounting said polishing tool on a rotatable shaft, rotating said polishing tool, and contacting said polishing member with said contact lens, whereby said contact lens is polished.
Claim 5
Independent Claim
90 words
A method of polishing a contact lens comprising providing a polishing tool consisting of a body, a resilient polishing head having a central dome and an annular ridge spaced from said central dome and an annular recess disposed between said central dome and said annular ridge, and a polishing member which is a non-abrasive polishing cloth in overlying relationship with said polishing head, mounting said polishing tool on a rotatable shaft, rotating said polishing tool, and contacting said polishing member with said contact lens, whereby said contact lens is polished.
Claim 6
Dependent Claim
14 words
The method of claim 3, including polishing the interior surface of said contact lens.
Claim 7
Dependent Claim
13 words
The method of claim 4, including polishing the edges of said contact lens.
Claim 8
Dependent Claim
14 words
The method of claim 5, including polishing the outside bevels of said contact lens.
Claim 9
Dependent Claim
14 words
The method of claim 6, including polishing the peripheral bevels of said contact lens.
Claim 10
Dependent Claim
66 words
The method of claim 7, including providing said contact lens having said outside and peripheral bevels, said edges, and a central optical section, polishing said outside and peripheral bevels, said edges and said central optical section of said contact lens so that a smooth blended curve is created for said interior portion of said contact lens whereby fit and comfort of said contact lens is enhanced.
Claim 11
Dependent Claim
32 words
The method of claim 8, including polishing said edges and said peripheral and outside bevels of said contact lens so that the central optical section of said contact lens is not disturbed.
Claim 12
Dependent Claim
15 words
The method of claim 8, including employing silk or cotton as said non-abrasive polishing cloth.
References Cited (Backward Citations)
US1988649A
Cited
US2282650A
Cited
US2309836A
Cited
CH254878A
Cited
US2749681A
Cited
US2990664A
Cited
US3050909A
Cited
US3087284A
Cited
US3160039A
Cited
US3144737A
Cited
US3238676A
Cited
US3142138A
Cited
US3583111A
Cited
US3517466A
Cited
US3578850A
Cited
US3916574A
Cited
GB2039810A
Cited
US4291508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-12-24 | 1994-06-25 | 1994-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-24 | 1998-06-25 | 1998-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-24 | 2002-06-25 | 2002-12-25 | $7700.00 | Window Closed / Lapsed |