US4876746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Environmental protective garment
Assignee: INSTITUTE OF OCCUPATIONAL MEDICINE Ltd
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Filing: 1988-03-07
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Granted: 1989-10-31
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Expires: 2008-03-07
Abstract
Abstract An environmental protective garment, especially for use in "clean rooms", is an at least partly air resistant garment having suitable body seals and an air mover means for providing a negative pressure within the garment when worn. The exhausted air from the air mover means may be passed through a scrubber or filter. Greater wearer comfort is possible than with known suits.
Inventors
- 👤 Robin M. Howie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:55
CPC Classifications
A; A41; A41D; A41D13/00; A41D13/002; A41D13/0025
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
109 words
An environmental protective garment for use in a dust free clean room to prevent dispersal of particulate matter from the body of the wearer but permitting the wearer to avoid excessive body heat buildup, said garment comprising a suit of partly air resistant material to cover substantially the entire body of the wearer and having a seal around parts of the wearer's body extending beyond the garment; air mover means connected to said garment to draw air through said partly air resistant material so as to provide a negative pressure within said garment; a filter or scrubber for gas connected to said garment downstream from the air mover means.
Claim 2
Dependent Claim
109 words
An environmental protective garment for use in a dust free clean room to prevent dispersal of particulate matter from the body of the wearer but permitting the wearer to avoid excessive body heat buildup, said garment comprising a suit of partly air resistant material to cover substantially the entire body of the wearer and having a seal around parts of the wearer's body extending beyond the garment; air mover means connected to said garment to draw air through said partly air resistant material so as to provide a negative pressure within said garment; a filter or scrubber for gas connected to said garment downstream from the air mover means.
Claim 3
Dependent Claim
16 words
A garment according to claim 1, having at least one designated air flow routes when worn.
Claim 4
Dependent Claim
16 words
A garment according to claim 1, wherein the air mover means is mounted on the garment.
Claim 5
Dependent Claim
16 words
A garment according to claim 1, wherein the air mover means is mounted on a harness.
Claim 6
Dependent Claim
24 words
A garment according to claim 1, wherein the air mover means is remote from the garment and is linked thereto by a flexible hose.
References Cited (Backward Citations)
US3096702A
Cited
GB1208284A
Cited
US3468299A
Cited
US3610251A
Cited
GB1395099A
Cited
US4230114A
Cited
GB2101469A
Cited
GB2105971A
Cited
EP0117303A1
Cited
GB2151457A
Cited
US4741333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-30 | 1993-05-01 | 1993-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-30 | 1997-05-01 | 1997-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-30 | 2001-05-01 | 2001-10-31 | $7700.00 | Window Closed / Lapsed |