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 Title: |
US3955570:
Surgical exhaust mask
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Hutter, III, Charles G.; Hollywood, CA
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| Assignee: |
Physical Systems, Inc., Hollywood, CA
other patents from PHYSICAL SYSTEMS, INC. (439965) (approx. 21)
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| Published / Filed: |
1976-05-11
/ 1974-05-17
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| Application Number: |
US1974000470985
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| IPC Code: |
Advanced:
A41D 13/11;
A42B 1/04;
A42C 5/04;
A61B 19/00;
A61M 16/00;
A61M 16/06;
IPC-7:
A62B 7/02;
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| ECLA Code: |
A61M16/00P2; A41D13/11B10; A42B3/28D; A42C5/04; A61B19/38; K61M16/06A5;
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| U.S. Class: |
Current:
128/201.23;
128/863;
128/910;
Original:
128/142.7;
128/142.3;
002/DIG.7;
128/139;
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| Field of Search: |
128/142.7,139,140 R,141 R,142,142.3-142.5,146.2,146.6,146.7
002/173,171.3,14 B,14 K,14 N,DIG. 1,DIG. 7,5,6,9
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| Priority Number: |
| 1974-05-17 |
US1974000470985 |
| 1972-05-18 |
US1972000252069 |
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| Abstract: |
Mask includes support member with head band arranged horizontally to fit head of wearer. Conduit sections are secured to each side of support member, and flexible ventilation conduit is connected to exhaust means. Transparent face plate is held to support member in spaced relation to wearer's head. Aperture means in conduit allow ingress of air, and exhaust means connected to conduit sections exhaust air from ventilation conduit and interior of mask. In one form, means in upper portion of face plate admit airflow and direct it down over inner surface of face plate to prevent fogging. Hood of air-impermeable material fits over head and shoulders. Gown of similar material over body and lower part of hood and tied at neck completes assembly. Any leakage is that of sterile air from exterior to interior of mask because of continuously operating exhaust system.
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| Attorney, Agent or Firm: |
Fulwider Patton Rieber Lee and Utecht ;
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| Primary / Asst. Examiners: |
Michell, Robert W.; Recla, Henry J.
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| Parent Case: |
BACKGROUND OF THE INVENTION
This is a continuation-in-part of my earlier patent application, Ser. No. 252,069, filed May 18, 1972 and now abandoned, entitled "SURGICAL EXHAUST MASK".
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| Family: |
None
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First Claim:
Show all 5 claims |
I claim:
1. A surgical exhaust mask comprising
- a support member sized and shaped to fit on the head of the wearer and including a head band adapted to surround the head in a generally horizontal position;
- a removable transparent face plate releasably carried by said support member to extend downwardly from said member and having a spherical configuration;
- a suction ventilation conduit opening into the space enclosed by said transparent face plate at the bottom thereof, said conduit at least in part being a flexible tube extending rearwardly and downwardly from said face plate and having its forward portion supported from said support member;
- aperture means in the upper portion of the face plate to permit ingress of air from the exterior of said plate and angled inwardly and downwardly to direct the inflow close to the inner surface of the face plate to prevent fogging; and
- a hood of flexible sheet material extending over said support member to a point below said face plate and ventilation conduit adapted to enclose the head and shoulders of the wearer, said hood having an opening through which said face plate projects, and the suction from said ventilation conduit drawing said hood against said support member, said face plate, and the head and shoulders of the wearer.
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
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| Description: |
Show description
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| Forward References: |
Show 42 U.S. patent(s) that reference this one
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