US4832716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ambient facial air cleaner for contact lens insertion
Assignee: Individual
•
Filing: 1988-03-21
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Granted: 1989-05-23
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Expires: 2008-03-21
Abstract
Abstract A facial air cleaner adapted to remove airborne particles in the vicinity of a person's face prior to insertion of contact lenses to eliminate the airborne particles from being deposited on the contact lenses during insertion. The cleaner is an enclosed unit which has an air inlet driven by an electric fan and conduit connected to the inlet adapted to provide a pattern of high and low velocity air flow through outlets arranged to surround the face and gently flood the hand holding the lens with cleaned air while a lens is being inserted.
Inventors
- 👤 Rose M. McMichael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:23
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/16; F24F3/163; Y; Y10; Y10S; Y10S55/00; Y10S55/29; Y10S55/37
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
199 words
A contact lens and facial ambient air cleaner for a human face comprising: A housing having an air inlet and an inverted U-shaped air outlet; a mechanical air filter placed in said housing at the air inlet; an electric fan seated in said housing and adapted to cause a flow of air from said air inlet to said inverted U-shaped air outlet; an inverted U-shaped component inside said housing in between said mechanical air filter and said inverted U-shaped air outlet, said inverted U-shaped air outlet being adapted to partially surround a human face with an inverted U-shaped curtain of filtered air; said outlet enclosing said component, said component comprising first and second spaced-apart parallel longitudinal apertures each having an uppermost and a lowermost extremity, each longitudinal aperture being adapted to provide low velocity air flow on each side of the human face; said component further comprising a third aperture located in between the uppermost extremities of said first and second apertures; said component further comprising means for providing high velocity air flow from said third aperture; said inverted U-shaped air outlet being adapted to direct said high velocity air flow towards an upper part of the human face.
Claim 2
Dependent Claim
199 words
A contact lens and facial ambient air cleaner for a human face comprising: A housing having an air inlet and an inverted U-shaped air outlet; a mechanical air filter placed in said housing at the air inlet; an electric fan seated in said housing and adapted to cause a flow of air from said air inlet to said inverted U-shaped air outlet; an inverted U-shaped component inside said housing in between said mechanical air filter and said inverted U-shaped air outlet, said inverted U-shaped air outlet being adapted to partially surround a human face with an inverted U-shaped curtain of filtered air; said outlet enclosing said component, said component comprising first and second spaced-apart parallel longitudinal apertures each having an uppermost and a lowermost extremity, each longitudinal aperture being adapted to provide low velocity air flow on each side of the human face; said component further comprising a third aperture located in between the uppermost extremities of said first and second apertures; said component further comprising means for providing high velocity air flow from said third aperture; said inverted U-shaped air outlet being adapted to direct said high velocity air flow towards an upper part of the human face.
Claim 3
Dependent Claim
74 words
A contact lens and facial ambient air cleaner comprising: A housing having an air inlet and an inverted U-shaped outlet; a mechanical filter placed in said housing at the air inlet; an electric fan seated in said housing and adapted to cause a flow of air from said air inlet to said outlet; and said inverted U-shaped outlet being adapted to partially surround a human face with an inverted U-shaped curtain of filtered air.
Claim 4
Dependent Claim
74 words
A contact lens and facial ambient air cleaner comprising: A housing having an air inlet and an inverted U-shaped outlet; a mechanical filter placed in said housing at the air inlet; an electric fan seated in said housing and adapted to cause a flow of air from said air inlet to said outlet; and said inverted U-shaped outlet being adapted to partially surround a human face with an inverted U-shaped curtain of filtered air.
Claim 5
Dependent Claim
134 words
A contact lens and facial ambient air cleaner comprising: A housing having an air inlet; a mechanical filter placing in said housing at the air inlet; a first means in said housing adapted to cause a flow of air from said air inlet to; a second means located inside said housing for surrounding a human face with an inverted U-shaped curtain of filtered air; said second means comprising an inverted U-shaped component and first and second interconnected apertures adapted to provide an outlet for low velocity air flow on each side of a human face; a third aperture located in said housing for providing high velocity air flow; said third aperture located near the uppermost extremities of said first and second apertures, said third aperture being substantially smaller than said first and second apertures.
Claim 6
Dependent Claim
134 words
A contact lens and facial ambient air cleaner comprising: A housing having an air inlet; a mechanical filter placing in said housing at the air inlet; a first means in said housing adapted to cause a flow of air from said air inlet to; a second means located inside said housing for surrounding a human face with an inverted U-shaped curtain of filtered air; said second means comprising an inverted U-shaped component and first and second interconnected apertures adapted to provide an outlet for low velocity air flow on each side of a human face; a third aperture located in said housing for providing high velocity air flow; said third aperture located near the uppermost extremities of said first and second apertures, said third aperture being substantially smaller than said first and second apertures.
Claim 7
Dependent Claim
70 words
A contact lens and facial air cleaner comprising two longitudinal outlets for air flow of low velocity innerconnected to a third outlet adapted for air flow of substantially higher velocity, said third outlet being located at the uppermost aspect of said two longitudinal outlets and means for providing a lateral flow of filtered air in an inverted U-shape partially surrounding a contact lens user's facial area during contact lens insertion.
Claim 8
Dependent Claim
70 words
A contact lens and facial air cleaner comprising two longitudinal outlets for air flow of low velocity innerconnected to a third outlet adapted for air flow of substantially higher velocity, said third outlet being located at the uppermost aspect of said two longitudinal outlets and means for providing a lateral flow of filtered air in an inverted U-shape partially surrounding a contact lens user's facial area during contact lens insertion.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-22 | 1992-11-21 | 1993-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-22 | 1996-11-21 | 1997-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-22 | 2000-11-21 | 2001-05-23 | $7700.00 | Window Closed / Lapsed |