US3600028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for inserting and removing contact lenses
Assignee: Individual
•
Filing: 1970-03-12
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Granted: 1971-08-17
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Expires: 1990-03-12
Abstract
Abstract An apparatus for inserting and removing contact lenses, which includes a suction head for a contact lens which is mounted at one end of a tube and permits the eye to view through the lens supporting member, and which also includes focusing light means adapted to be viewed through said tubular means, said tubular means being displaceable in a sleeve while the apparatus is equipped with a closing contact which in response to a pull out of the tubular means automatically turns on a fixation light, whereas when moving the tube inwardly the light is extinguished, said apparatus being equipped with suction creating means operable in response to a slight movement of the supporting means in the direction toward the sleeve means and becoming effective when the contact lens engages the supporting means so that said lens will be firmly drawn to and held by said lens supporting means.
Inventors
- 👤 Wilhelm Henning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:27
CPC Classifications
A; A61; A61B; A61B3/00; A61F; A61F9/00; A61F9/0061
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
251 words
An apparatus for inserting contact lenses into and removing the same from an eye, which includes: housing means, tubular means slidably movable in said housing means from an inner position to an outer position and vice versa, said tubular means being adapted to be placed in a substantially vertical position for use, light means arranged at the lower end of said tubular means when the latter is in its substantially vertical position, supporting means arranged at the other end of said tubular means and adapted to receive and support the contact lens to be inserted or to be removed, said supporting means permitting viewing said light means through said supporting means and said tubular means, electric current supply means operable automatically in response to said tubular means reaching said outer position to supply current to said lamp to light up the same, said tubular means also being operable in response to said tubular means leaving said outer position on its way toward said inner position to interrupt current supply from said electric current supply means to said light means to thereby extinguish said light means while permitting said tubular means adapted manually to be preset and operable when in preset condition to exert a suction effect upon the lens receiving surface of said supporting means in response to said supporting surface moving inwardly from said outer position to exert a suction upon the lens receiving surface of said supporting means for withdrawing a contact lens from the eye of a wearer.
Claim 2
Independent Claim
251 words
An apparatus for inserting contact lenses into and removing the same from an eye, which includes: housing means, tubular means slidably movable in said housing means from an inner position to an outer position and vice versa, said tubular means being adapted to be placed in a substantially vertical position for use, light means arranged at the lower end of said tubular means when the latter is in its substantially vertical position, supporting means arranged at the other end of said tubular means and adapted to receive and support the contact lens to be inserted or to be removed, said supporting means permitting viewing said light means through said supporting means and said tubular means, electric current supply means operable automatically in response to said tubular means reaching said outer position to supply current to said lamp to light up the same, said tubular means also being operable in response to said tubular means leaving said outer position on its way toward said inner position to interrupt current supply from said electric current supply means to said light means to thereby extinguish said light means while permitting said tubular means adapted manually to be preset and operable when in preset condition to exert a suction effect upon the lens receiving surface of said supporting means in response to said supporting surface moving inwardly from said outer position to exert a suction upon the lens receiving surface of said supporting means for withdrawing a contact lens from the eye of a wearer.
Claim 3
Dependent Claim
95 words
An apparatus according to Claim 1, in which said suction creating means includes hollow compressible elastic means closing said lower end of said tubular means and having its interior in communication with said tubular means, sleeve means surrounding said tubular means and movable selectively from an ineffective position to an effective position, and vice versa, and control means associated with said sleeve means and operable in the effective position of said tubular means to compress said compressible elastic means and to release said compressible means in response to said tubular means leaving its outer position.
Claim 4
Dependent Claim
60 words
An apparatus according to Claim 2, in which said control means for compressing said hollow compressible elastic means comprises manually operable mechanical means in the form of an outer tube surrounding said tubular means movable from an inner to an outer position and vice versa, said outer tube being provided with a yoke extending around said hollow compressible elastic means.
Claim 5
Dependent Claim
29 words
An apparatus according to Claim 3, which includes latching means holding said hollow compressible elastic means in compressed condition as long as said outer tube occupies said outer position.
Claim 6
Dependent Claim
109 words
An apparatus according to Claim 1, which includes diaphragm means closing the lower end of said tubular means, magnetic core means connected to said diaphragm means, and coil means arranged within said tubular means, means responsive to said tubular means occupying its outer position to close a circuit through said coil means to thereby cause said magnetic core means together with said diaphragm means to be pulled upwardly into the coil means, said tubular means when being depressed interrupting said circuit and permitting said magnetic core with said diaphragm means to drop to its starting position for producing the required lower underpressure at said lens receiving and supporting means.
Claim 7
Dependent Claim
103 words
An apparatus according to Claim 1, in which said tubular means is closed at both ends and in the vicinity of said lens receiving and supporting means is provided with a lateral opening, hollow compressible elastic means communicating with the interior of said tubular means for producing an underpressure, and diaphragm means arranged below said lateral opening and having said lens receiving and supporting means mounted thereon, said diaphragm being mounted on said tubular means so as to close said opening in the outer position of said tubular means and to release said opening in response to the supporting means being displaced downwardly.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |