US4504994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for applying and working a cleansing preparation on contact lenses
Assignee: Individual
•
Filing: 1984-01-05
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Granted: 1985-03-19
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Expires: 2004-01-05
Abstract
Abstract An apparatus for cleaning conventional contact lenses with a suitable cleansing preparation including a body formed of a soft, slightly abrasive material and having a recessed area formed therein for receiving a contact lens. A handle assembly includes a projecting portion of the same or a similar soft, slightly abrasive material which can be inserted in the recess to engage the lens and manipulate it to be rubbed on its inward and outward surfaces by the surface of the body recess and the surface of the handle projecting portion. The cleaning operation is carried out by first applying the cleaning preparation to the concave recessed surface of the body and to the convex projecting portion of the handle assembly, placing the lens in the recessed area 22 and inserting the projecting portion of the handle assembly therein and manipulating the lens against the surfaces to apply the cleaning preparation to the lens.
Inventors
- 👤 Calvin M. Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:18
CPC Classifications
B; B08; B08B; B08B11/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
278 words
Apparatus for applying and working a cleansing preparation on contact lenses of the soft hydrophilic type, the hard hydrophobic type or the like with limited manual handling and manipulation thereof comprising a body having formed therein a recessed area having a surface formed of a material relatively soft and sufficiently abrasive to said contact lenses only for effective surface cleaning thereof without damage thereto and having a concave area configured in substantial conformity to the outward convex surface of said contact lenses for receiving one said contact lens in substantial surface contact with said outward convex surface and handle means including a cleaning head having a surface formed of a material relatively soft and sufficiently abrasive to said contact lenses only for effective surface cleaning thereof without damage thereto and having a convex projecting portion adapted for insertion in said recess of said body and configured in substantial conformity to the inward concave surface of said contact lens for engagement with said one contact lens in substantial surface contact with said inward concave surface thereof, whereby said one contact lens may be cleansed by application of said cleansing preparation to said surface of said concave area and said surface of said convex projecting portion, disposition of said one contact lens in said recessed area with said outward convex surface of said one contact lens on said concave area, insertion of said cleaning head in recessed area with said convex projecting portion in engagement with said inward concave surface of said contact lens, and manipulation of said handle means to apply a working action of said cleansing preparation to said inward and outward surfaces of said one contact lens.
Claim 2
Dependent Claim
278 words
Apparatus for applying and working a cleansing preparation on contact lenses of the soft hydrophilic type, the hard hydrophobic type or the like with limited manual handling and manipulation thereof comprising a body having formed therein a recessed area having a surface formed of a material relatively soft and sufficiently abrasive to said contact lenses only for effective surface cleaning thereof without damage thereto and having a concave area configured in substantial conformity to the outward convex surface of said contact lenses for receiving one said contact lens in substantial surface contact with said outward convex surface and handle means including a cleaning head having a surface formed of a material relatively soft and sufficiently abrasive to said contact lenses only for effective surface cleaning thereof without damage thereto and having a convex projecting portion adapted for insertion in said recess of said body and configured in substantial conformity to the inward concave surface of said contact lens for engagement with said one contact lens in substantial surface contact with said inward concave surface thereof, whereby said one contact lens may be cleansed by application of said cleansing preparation to said surface of said concave area and said surface of said convex projecting portion, disposition of said one contact lens in said recessed area with said outward convex surface of said one contact lens on said concave area, insertion of said cleaning head in recessed area with said convex projecting portion in engagement with said inward concave surface of said contact lens, and manipulation of said handle means to apply a working action of said cleansing preparation to said inward and outward surfaces of said one contact lens.
Claim 3
Dependent Claim
24 words
The contact lens cleansing apparatus of claim 1 and characterized further in that said body is formed entirely of said soft, sufficiently abrasive material.
Claim 4
Dependent Claim
32 words
The contact lens cleansing apparatus of claim 1 and characterized further in that said concave area surface and said cleaning head surface are formed of the same said soft, sufficiently abrasive material.
Claim 5
Dependent Claim
34 words
The contact lens cleansing apparatus of claim 3 and characterized further in that said material is a foamed polymeric material having a relatively high number of expanded cells of the material per unit dimension.
Claim 6
Dependent Claim
24 words
The contact lens cleansing apparatus of claim 4 and characterized further in that said body is formed entirely of said soft, sufficiently abrasive material.
Claim 7
Dependent Claim
41 words
The contact lens cleansing apparatus of claim 5 and characterized further in that said recessed area includes a conical wall portion and a concave surface portion extending across the inward terminal end of said conical wall portion forming said concave area.
Claim 8
Dependent Claim
36 words
The contact lens cleansing apparatus of claim 6 and characterized further in that said handle means includes a handle portion and means on said handle portion and said cleaning head for selective assembly and separation thereof.
Claim 9
Dependent Claim
41 words
The contact lens cleansing apparatus of claim 1 and characterized further in that said recessed area includes a conical wall portion and a concave surface portion extending across the inward terminal end of said conical wall portion forming said concave area.
Claim 10
Dependent Claim
36 words
The contact lens cleansing apparatus of claim 1 and characterized further in that said handle means includes a handle portion and means on said handle portion and said cleaning head for selective assembly and separation thereof.
References Cited (Backward Citations)
US3378873A
Cited
US4187574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-03-18 | 1988-09-17 | 1989-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-18 | 1992-09-17 | 1993-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-18 | 1996-09-17 | 1997-03-19 | $7700.00 | Window Closed / Lapsed |