US3782045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact lens polishing system
Assignee: Individual
•
Filing: 1971-12-29
•
Granted: 1974-01-01
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Expires: 1991-12-29
Abstract
Abstract A polishing solution recirculating system for use with contact lens polishing machines wherein lenses held by separate holders are brought into contact with a wetted surface polishing element disposed on a rotating spindle with additional polishing solution being applied to the wetted surface as the holder is rocked to alternate angular positions of contact with respect to said spindle for exposing further areas of the lenses to polishing action and wherein nozzles of a distributor manifold are mounted for movement with a rocking mechanism to keep the nozzles in operative position for polishing solution application at all reciprocal positions for said holders. A splash tray is disposed about the spindles and connected to a sump whereby the polishing solution is collected for intermixture and recirculation by a pump disposed in the sump and having its pressure side connected to said manifold.
Inventors
- 👤 M Kanda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:56
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/0025; B24B57/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
212 words
A contact lens polishing device of the type providing a plurality of lens polishing spindles and mechanisms for rotating the same comprising, polishing covers on each of said spindles, contact lens holders for positioning adjacent each of the spindles and providing means to receive and hold the lens surfaces of lenses in position for contact with said polish covers, a rocker mechanism including a reciprocally moving shaft, pivot means disposed at angular positions with respect to the axis of said shaft providing separate mountings for said lens holders whereby the angular position of said lens holders and lenses with respect to the axis of said spindles may be pivotally changed, a supply of polishing solution, a manifold mounted to move reciprocally with the shaft of said rocker mechanism for conveying said solution to positions adjacent each said spindle, a plurality of spray nozzles supported by said manifold for reciprocal movement therewith with each nozzle being independently directed to spray solution on an individual cover and the lens surface being polished thereby, pump means for delivering polishing solution from said supply to said manifold and nozzles, a collector tray disposed about the plurality of spindles for the collection of expelled solution, and a return circuit for redelivery of said solution to the supply.
Claim 2
Dependent Claim
212 words
A contact lens polishing device of the type providing a plurality of lens polishing spindles and mechanisms for rotating the same comprising, polishing covers on each of said spindles, contact lens holders for positioning adjacent each of the spindles and providing means to receive and hold the lens surfaces of lenses in position for contact with said polish covers, a rocker mechanism including a reciprocally moving shaft, pivot means disposed at angular positions with respect to the axis of said shaft providing separate mountings for said lens holders whereby the angular position of said lens holders and lenses with respect to the axis of said spindles may be pivotally changed, a supply of polishing solution, a manifold mounted to move reciprocally with the shaft of said rocker mechanism for conveying said solution to positions adjacent each said spindle, a plurality of spray nozzles supported by said manifold for reciprocal movement therewith with each nozzle being independently directed to spray solution on an individual cover and the lens surface being polished thereby, pump means for delivering polishing solution from said supply to said manifold and nozzles, a collector tray disposed about the plurality of spindles for the collection of expelled solution, and a return circuit for redelivery of said solution to the supply.
Claim 3
Dependent Claim
42 words
A device as set forth in claim 1 wherein said return circuit is inclusive of a tilted bottom for said collector tray and further comprising a filter in said return circuit for the removal of oversize particulate matter from said polishing solution.
Claim 4
Dependent Claim
73 words
A device as set forth in claim 1 and further comprising a sump for said device to receive and hold said supply of polishing solution and wherein the polishing solution is inclusive of powdered abrasive matter normally kept in suspension by action of said pump and wherein the intake for said pump is disposed in elevated position in said supply to avoid ingestion of settled concentrations of said abrasive after periods of nonuse.
Claim 5
Dependent Claim
46 words
A device as set forth in claim 3 wherein the outlet from said return circuit is disposed in said sump and at an elevation below the elevation for the intake of said pump whereby said powdered abrasive is more efficiently kept in suspension within said sump.
References Cited (Backward Citations)
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Cited
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US3021647A
Cited
US3037331A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |