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Class Information
Number: 128/206.24
Name: Surgery > Respiratory method or device > Face mask covering a breathing passage > Mask/face sealing structure
Description: Subject matter including structure for sealing the contact area between a mask and the user’s face.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5647357 |
Respiratory mask facial seal |
Jul. 15, 1997 |
| 5630412 |
Protective equipment for the head comprising a breathing mask and an optical screen |
May. 20, 1997 |
| 5617849 |
Respirator having thermochromic fit-indicating seal |
Apr. 8, 1997 |
| 5592938 |
Mask apparatus |
Jan. 14, 1997 |
| 5570689 |
Respiratory mask having a vertically adjustable spacer element that limits seal deformation on a wearer's face |
Nov. 5, 1996 |
| 5560354 |
Facial masks for assisted respiration or CPAP |
Oct. 1, 1996 |
| 5558089 |
Respirator nose clip |
Sep. 24, 1996 |
| 5553608 |
Face mask with enhanced seal and method |
Sep. 10, 1996 |
| 5540223 |
Respiratory mask facial seal |
Jul. 30, 1996 |
| 5538001 |
Oxygen masks |
Jul. 23, 1996 |
| 5529056 |
Apparatus and method for testing respirator fit and seal |
Jun. 25, 1996 |
| 5517986 |
Two-point/four-point adjustable headgear for gas delivery mask |
May. 21, 1996 |
| 5499624 |
Breathing mask with face-contact actuated overpressure generating switch |
Mar. 19, 1996 |
| 5492116 |
Respiratory mask with floating seal responsive to pressurized gas |
Feb. 20, 1996 |
| 5476092 |
Resuscitation mask with nose occluding and head inclining structure |
Dec. 19, 1995 |
| 5464010 |
Convenient "drop-down" respirator harness structure and method of use |
Nov. 7, 1995 |
| 5454369 |
Breathing mask with fixed mask body |
Oct. 3, 1995 |
| 5429683 |
Face mask for breathing |
Jul. 4, 1995 |
| 5419318 |
Breathing mask |
May. 30, 1995 |
| 5355878 |
Breathing equipment for aircrew |
Oct. 18, 1994 |
| 5353789 |
A flaccid mask with straps and a supporting element that force the mask into sealing engagement with the wearer's face in response to force exerted by the straps on the supporting element |
Oct. 11, 1994 |
| 5349949 |
Face mask with lip, fold, and resilient spring means to improve seal |
Sep. 27, 1994 |
| 5313937 |
Leak compensation method and apparatus for a breathing system |
May. 24, 1994 |
| 5291880 |
Protective helmet with protective facepiece connection and adjustment provision |
Mar. 8, 1994 |
| 5277179 |
Diver's microphone mask |
Jan. 11, 1994 |
| 5243708 |
Disposable scented mask |
Sep. 14, 1993 |
| 5243971 |
Nasal mask for CPAP having ballooning/moulding seal with wearer's nose and facial contours |
Sep. 14, 1993 |
| 5209226 |
Underwater respiratory device |
May. 11, 1993 |
| 5181506 |
Multilayer protective gas mask |
Jan. 26, 1993 |
| 5143061 |
Supplemental seal for oxygen mask |
Sep. 1, 1992 |
| 5138714 |
Windsheet optical device |
Aug. 18, 1992 |
| D326932 |
Face shield |
Jun. 9, 1992 |
| 5080092 |
Protective mask |
Jan. 14, 1992 |
| 5069205 |
Quick-donning head harness assembly |
Dec. 3, 1991 |
| 5050594 |
Adjustable respirator mask apparatus |
Sep. 24, 1991 |
| 5027810 |
Self-contained emergency breathing apparatus |
Jul. 2, 1991 |
| 5003633 |
Face protector |
Apr. 2, 1991 |
| 4991575 |
Disposable liner for breathing apparatus |
Feb. 12, 1991 |
| 4989596 |
Face chamber |
Feb. 5, 1991 |
| 4966140 |
Protective facial mask |
Oct. 30, 1990 |
| 4961420 |
Gas mask for operation in contaminated areas |
Oct. 9, 1990 |
| 4960121 |
Half-face mask assembly |
Oct. 2, 1990 |
| 4951664 |
Mask and method of manufacture |
Aug. 28, 1990 |
| 4945574 |
Protective mask |
Aug. 7, 1990 |
| 4907584 |
Respiratory mask |
Mar. 13, 1990 |
| 4905683 |
Respirator mask for positive pressure respirator equipment |
Mar. 6, 1990 |
| 4901716 |
Clean room helmet system |
Feb. 20, 1990 |
| 4881538 |
Respirator air guide |
Nov. 21, 1989 |
| 4875477 |
Protective mask having a built-in sensor for monitoring vital functions |
Oct. 24, 1989 |
| 4873972 |
Disposable filter respirator with inner molded face flange |
Oct. 17, 1989 |
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