Patent US4138085A successfully refreshed from Google Patents.
US4138085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precision blocking of lens blanks
Assignee: Individual
•
Filing: 1977-01-31
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Granted: 1979-02-06
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Expires: 1997-01-31
Abstract
Abstract Method and apparatus for the precision blocking of lens blanks using a holder to de-center the blank and fix its optical axis. The holder is then used to position the blank with respect to a blocker by which an alloy hub or "block" is removably affixed to the blank so that it can be properly gripped for conversion into a finished lens product.
Inventors
- 👤 Bela J. Bicskei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:33
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/005; B24B13/0055; B23; B23Q; B23Q17/00; B23Q17/22; Y; Y10; Y10S; Y10S248/00; Y10S248/913
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
74 words
Apparatus for the precision manipulating of lens blanks comprising a frame; means on said frame for mounting the lens blank within said frame; means effecting translational movement of the mounting means relative to said frame; means mounting said frame on auxiliary equipment including means moveable towards said frame for bringing a preformed block into contact with an adhesive strip positioned on said lens blank positioned at a prescribed translational position relative to said frame.
Claim 2
Dependent Claim
74 words
Apparatus for the precision manipulating of lens blanks comprising a frame; means on said frame for mounting the lens blank within said frame; means effecting translational movement of the mounting means relative to said frame; means mounting said frame on auxiliary equipment including means moveable towards said frame for bringing a preformed block into contact with an adhesive strip positioned on said lens blank positioned at a prescribed translational position relative to said frame.
Claim 3
Dependent Claim
25 words
Apparatus as defined in claim 13 further including means for translationally moving said lens blank relative to said frame with two independent degrees of motion.
Claim 4
Dependent Claim
13 words
Apparatus as defined in claim 1 wherein the translational means is micrometer movable.
Claim 5
Dependent Claim
24 words
Apparatus as defined in claim 1 further including means for establishing a reference for the movement of the translational means relative to said frame.
Claim 6
Dependent Claim
21 words
Apparatus as defined in claim 1 wherein the mounting means includes toggle means for clamping said lens blank in position thereon.
Claim 7
Dependent Claim
16 words
Apparatus as defined in claim 1 further including means for the mounting thereof on auxiliary equipment.
Claim 8
Dependent Claim
13 words
Apparatus as defined in claim 6 wherein said auxiliary equipment is a blocker.
Claim 9
Dependent Claim
37 words
Apparatus as defined in claim 7 wherein said blocker includes a die position and means connectable at said die position for applying a melt to said lens blank to form a block which on said lens blank.
References Cited (Backward Citations)
US2146599A
Cited
US2585916A
Cited
US2643557A
Cited
US2755553A
Cited
US3289311A
Cited
US3431688A
Cited
US3451177A
Cited
US3589079A
Cited
US3807095A
Cited
US3872760A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-05 | 1982-08-07 | 1983-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-05 | 1986-08-07 | 1987-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-05 | 1990-08-07 | 1991-02-06 | $7700.00 | Window Closed / Lapsed |