US3685214A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two piece lens grinding lap
Assignee: VAERCO Inc
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Filing: 1970-10-12
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Granted: 1972-08-22
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Expires: 1990-10-12
Abstract
Abstract A two piece grinding lap comprising a lens surfacing member and a body member. The lens surfacing member includes depending lugs adapted to be received in corresponding detents in the body member and may be made of a non-ferrous material such as plastic. Both grinding and polishing can be carried out by using either a grinding pad or a polishing pad on the curved surface.
Inventors
- 👤 George M J Sarofeen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:44
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/01
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
123 words
A lens grinding lap comprising a body member, said body member being adapted to be connected to a drive source for rotatably driving or oscillating said lap, a detachable lens surfacing cap member adapted to be received over said body member, said cap member having a prescribed surface portion for generating a lens blank to a corresponding curvature, first means on said body member for restraining said cap member from relative movement with respect thereto and second means on said cap member cooperating with said first means to effect said restraint, said first means comprising a plurality of detents and said second means comprising a plurality of lugs adapted to be received by said detents, said lugs forming cross-ribs within said cap member.
Claim 2
Dependent Claim
123 words
A lens grinding lap comprising a body member, said body member being adapted to be connected to a drive source for rotatably driving or oscillating said lap, a detachable lens surfacing cap member adapted to be received over said body member, said cap member having a prescribed surface portion for generating a lens blank to a corresponding curvature, first means on said body member for restraining said cap member from relative movement with respect thereto and second means on said cap member cooperating with said first means to effect said restraint, said first means comprising a plurality of detents and said second means comprising a plurality of lugs adapted to be received by said detents, said lugs forming cross-ribs within said cap member.
Claim 3
Dependent Claim
19 words
A lens grinding lap as set forth in claim 1 wherein said cap member is of a non-ferrous material.
Claim 4
Dependent Claim
19 words
A lens grinding lap as set forth in claim 1 wherein said cap member is of a plastic material.
Claim 5
Dependent Claim
114 words
A lens grinding lap comprising a body member, said body member being adapted to be connected to a drive source for rotatably driving or oscillating said lap, a detachable lens surfacing cap member including means adapted to be received within said body member for maintaining said body member and cap member in assembled relationship and said cap member having a prescribed surface portion for generating a lens blank to a corresponding curvature, said means within said body member including an annular rim, intersecting cross pieces Within and connected to said annular rim, said body member including cross channels adapted to receive said cross pieces and an annular channel adapted to receive said annular rim.
Claim 6
Dependent Claim
114 words
A lens grinding lap comprising a body member, said body member being adapted to be connected to a drive source for rotatably driving or oscillating said lap, a detachable lens surfacing cap member including means adapted to be received within said body member for maintaining said body member and cap member in assembled relationship and said cap member having a prescribed surface portion for generating a lens blank to a corresponding curvature, said means within said body member including an annular rim, intersecting cross pieces Within and connected to said annular rim, said body member including cross channels adapted to receive said cross pieces and an annular channel adapted to receive said annular rim.
Claim 7
Dependent Claim
94 words
A lens grinding lap as set forth in claim 1 wherein said body member is of a cupped configuration having an annular rim, said detents being formed on said rim to provide a plurality of slot-like grooves, said cap member including a depending annular rim adapted to be fitted over the rim of said body member said lugs adapted to be cooperatively received in said slot-like grooves so as to restrain said cap member from relative movement with respect to said body member, but permitting detachment of said cap member from said body member.
Claim 8
Dependent Claim
21 words
A lens grinding lap as set forth in claim 1 further including a wear surface bonded to the prescribed surface portion.
Claim 9
Dependent Claim
19 words
A lens grinding lap as set forth in claim 4 wherein said cap member is of a non-ferrous material.
Claim 10
Dependent Claim
44 words
A lens grinding lap as set forth in claim 4 wherein said cap member further includes an annular channel about said rim and said body member further includes a rim adjacent said annular channel and adapted to be received within said last named channel.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |