US4986282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Face shield system
Assignee: STACK HOLDINGS Inc
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Filing: 1987-09-09
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Granted: 1991-01-22
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Expires: 2007-09-09
Abstract
Abstract There is herein described an improved anti-infection shield system designed for the protection of all health care workers from accidental exposure to body fluids from virus infected patients whereby an ultra-light face shield protects the eyes, nose and oral cavity from inadvertent splashing of patient blood or other body fluids, the shield being very light in weight, optically clear, and readily replaceable.
Inventors
- 👤 Wyman H. Stackhouse
- 👤 Ian M. Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:00
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/02; A41; A41D; A41D13/00; A41D13/05; A41D13/11; A41D13/1184
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
164 words
A face shield system for protection of health care workers from accidental exposure to the body fluids from virus infected patients, comprising: a support member adjustably sized and shaped to fit the head of the user and including a generally horizontal head band and an upper cross band section as an integral part of said support member; a curved face shield having an upper peripheral portion conformable generally to the curved lower peripheral portion of said support member and extending therebelow to protect the user's face from splashed fluids when said face shield is in its normal generally vertical position; and a hook and pile engaging and holding means disposed on the outer surface of said lower peripheral portion of said support member and on the inner surface of said upper peripheral portion of said face shield for frictionally engaging and holding said face shield to said support member thereby providing a quick release mechanism for separating said face shield from said support member.
Claim 2
Dependent Claim
164 words
A face shield system for protection of health care workers from accidental exposure to the body fluids from virus infected patients, comprising: a support member adjustably sized and shaped to fit the head of the user and including a generally horizontal head band and an upper cross band section as an integral part of said support member; a curved face shield having an upper peripheral portion conformable generally to the curved lower peripheral portion of said support member and extending therebelow to protect the user's face from splashed fluids when said face shield is in its normal generally vertical position; and a hook and pile engaging and holding means disposed on the outer surface of said lower peripheral portion of said support member and on the inner surface of said upper peripheral portion of said face shield for frictionally engaging and holding said face shield to said support member thereby providing a quick release mechanism for separating said face shield from said support member.
Claim 3
Dependent Claim
23 words
The face shield system according to claim 1, wherein said generally horizontal head band and said upper cross band sections include adjustable arrangements.
Claim 4
Dependent Claim
40 words
The face shield system according to claim 2, wherein said adjustable mechanism associated with said generally horizontal head band includes a ratchet mechanism whereby only one hand of the user is required to change the size of said head band.
Claim 5
Dependent Claim
63 words
The face shield system according to claim 1, where said hook and pile engaging and holding means includes a loop structure and a cooperating hook structure, a different one for each of said structures being disposed on the outer surface of said lower peripheral portion of said support member and on the inner surface of said upper peripheral portion of said face shield.
References Cited (Backward Citations)
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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) | 1994-01-21 | 1994-07-23 | 1995-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-21 | 1998-07-23 | 1999-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-21 | 2002-07-23 | 2003-01-22 | $7700.00 | Window Closed / Lapsed |