US4579113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable covers for respirators
Assignee: PARMELEE IDUSTRIES Inc 1535 WALNUT STREET KANSAS CITY MISSOURI A CORP OF
•
Filing: 1984-04-23
•
Granted: 1986-04-01
•
Expires: 2004-04-23
Abstract
Abstract A disposable protective cover for face-engaging respirators, or the like, which is particularly useful in a contaminated environment in preventing particulate buildup on the respirator. For example, in painting operations the cover protects the respirator from paint buildup and contamination, preserving the respirator from undue wear and reducing frequent cleaning and maintenance of the respirator. The cover presents a thin, flexible body configured to generally conform to the shape of the outer surface of the respirator. The body has an opening to provide access to the respirator intake and a cuplike section to provide a loose fit of the cover around the respirator exhalation valve to allow unrestricted breathing. The covers hereof present structure for quick attachment or detachment of the covers from the respirator. The exact structural features of the covers are adapted to accommodate different types of respirators, such as full face or half-face masks, and external air source or filter type masks.
Inventors
- 👤 John B. McCreadie
- 👤 James M. Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:13
CPC Classifications
A; A62; A62B; A62B18/00; A62B18/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
145 words
In the combination of a face respirator and a protector for the outer surface of said respirator, said respirator having a fluid intake and fluid outlet, said respirator having an outer surface with a perimeter adapted to complementally conform to the configuration of a human face, the improvement comprising: said protector comprising a thin, flexible, essentially non-porous, initially flat sheet configured to generally conform to the shape of said surface in substantial overlying parallelism thereto, said sheet having a perimeter substantially complemental in dimension and configuration to said perimeter of the outer surface of said respirator, said sheet having structure defining an opening for providing said access to said intake and having means for clearing said outlet; and means on said sheet and securable to said respirator for releasably coupling said sheet to said respirator to enable simultaneous handling of said protector with said respirator.
Claim 2
Dependent Claim
145 words
In the combination of a face respirator and a protector for the outer surface of said respirator, said respirator having a fluid intake and fluid outlet, said respirator having an outer surface with a perimeter adapted to complementally conform to the configuration of a human face, the improvement comprising: said protector comprising a thin, flexible, essentially non-porous, initially flat sheet configured to generally conform to the shape of said surface in substantial overlying parallelism thereto, said sheet having a perimeter substantially complemental in dimension and configuration to said perimeter of the outer surface of said respirator, said sheet having structure defining an opening for providing said access to said intake and having means for clearing said outlet; and means on said sheet and securable to said respirator for releasably coupling said sheet to said respirator to enable simultaneous handling of said protector with said respirator.
Claim 3
Dependent Claim
33 words
A protector as set forth in claim 1, said clearing means comprising a cuplike section for providing a loose fit of the sheet relative to said surface in the region of said outlet.
Claim 4
Dependent Claim
21 words
A protector as set forth in claim 1, said section including a gathered portion of said sheet provided with a seam.
Claim 5
Dependent Claim
19 words
A protector as set forth in claim 1, said opening defining a structure comprising an aperture through said sheet.
Claim 6
Dependent Claim
26 words
A protector as set forth in claim 1, wherein said opening defining structure comprises a plurality of spaced-apart perforations through said sheet presenting a removable disc.
Claim 7
Dependent Claim
32 words
A protector as set forth in claim 1, said respirator having a plurality of straps secured thereto, said releasable means comprising a plurality of slits through said sheet for receiving said straps.
Claim 8
Dependent Claim
30 words
A protector as set forth in claim 1, said respirator having a plurality of connectors, said releasable means comprising a plurality of holes through said sheet for receiving respective connectors.
Claim 9
Dependent Claim
38 words
A protector as set forth in claim 1, said respirator having a see-through pane, said sheet including a transparent panel as a part thereof disposed in front of the pane when the sheet is attached to said respirator.
Claim 10
Dependent Claim
34 words
A protector as set forth in claim 1, said intake comprising two spaced-apart inhalation valves and means on each valve for attaching a filter thereto, said sheet presenting an opening for each intake respectively.
References Cited (Backward Citations)
US2821192A
Cited
CH195481A
Cited
US2462005A
Cited
US2529106A
Cited
US2642574A
Cited
US2810385A
Cited
US2744525A
Cited
US2827900A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-31 | 1989-09-30 | 1990-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-31 | 1993-09-30 | 1994-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-31 | 1997-09-30 | 1998-04-01 | $7700.00 | Window Closed / Lapsed |