Source: http://www.google.com/patents/US7575006?dq=6,073,142
Timestamp: 2017-09-20 04:48:05
Document Index: 276008814

Matched Legal Cases: ['art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4']

Patent US7575006 - Respirator mask with hygienic protection - Google Patents
The invention relates to a respirator mask with hygienic protection. More specifically, the invention relates to a respirator face mask (2) which provides physiological protection, comprising: an oronasal face piece (10), a semi-flexible lip element (6) which is used to position the oronasal face piece...http://www.google.com/patents/US7575006?utm_source=gb-gplus-sharePatent US7575006 - Respirator mask with hygienic protection
Publication number US7575006 B2
Application number US 10/555,816
PCT number PCT/FR2004/001195
Also published as CA2525563A1, CA2525563C, CN1784252A, CN1784252B, CN102652863A, CN102652863B, EP1624937A1, US20060130845, WO2004103476A1
Publication number 10555816, 555816, PCT/2004/1195, PCT/FR/2004/001195, PCT/FR/2004/01195, PCT/FR/4/001195, PCT/FR/4/01195, PCT/FR2004/001195, PCT/FR2004/01195, PCT/FR2004001195, PCT/FR200401195, PCT/FR4/001195, PCT/FR4/01195, PCT/FR4001195, PCT/FR401195, US 7575006 B2, US 7575006B2, US-B2-7575006, US7575006 B2, US7575006B2
Inventors Robert Schegerin
Patent Citations (38), Referenced by (1), Classifications (6), Legal Events (4)
Respirator mask with hygienic protection
US 7575006 B2
21. The mask as claimed in claim 12, wherein the oronasal face piece has a maximum section, wherein the lip securing part is disposed on a side of the maximum section, and wherein at least a portion of the lip insulation part is disposed on an opposite side of the maximum section.
an oronasal face piece designed to be connected to a respiratory gas source,
a semi-flexible lip element with an edge designed to position the oronasal face piece on the face of a user, and
hygienic protection means which are removably positioned at least partially inside the mask and including a first part which provides hygienic protection and a second part which maintains the hygienic protection means inside the mask, this second part co-operating elastically with the semi-flexible lip element or the face piece.
The hygienic protection means are removable and can therefore be easily replaced between consecutive uses. This is made particularly possible by the second part which cooperates elastically with the semi-flexible lip element or the face piece. Besides the fact that this elastic cooperation facilitates the fitting of the hygienic protection means on the mask and their removal from the mask, it can, if necessary, be used to provide a degree of seal-tightness between the hygienic protection means and the semi-flexible lip element or the face piece.
the first and second parts of the hygienic protection means include different materials;
the second part is in contact with at least an internal part of the semi-flexible lip element;
a thin lip element prolongs, at least in certain areas, the second part, so as to extend a few millimeters beyond the free edge of the semi-flexible lip element;
the thin lip element is prolonged over at least an external part of the semi-flexible lip element;
the first part of the hygienic protection means includes a filter allowing the respiratory gases to pass through;
the first part at least partly filters any infection from the user;
the first part has a corrugated shape, in order to reduce the pressure drop of the hygienic protection means;
the corrugated shape corresponds to waves substantially centered about a central area of the hygienic protection means, to facilitate extraction of the hygienic protection means from the mask;
the mask includes a cord, attached to the hygienic protection means, facilitating the extraction of the hygienic protection means from the mask;
the second part is made of silicone;
the first part of the hygienic protection means covers an area of the semi-flexible lip element which, in the absence of hygienic protection means, would have been in contact with the face once the mask was in place on the latter;
the second part includes an elastic thread gripping the semi-flexible lip element;
a flexible structure is placed between the hygienic protection means and an internal part of the semi-flexible lip element and extending beyond the latter;
a flexible structure is placed outside the hygienic protection means, inside the semi-flexible lip element and extending beyond the latter;
a part located outside the semi-flexible lip element and including a structural part providing the seal between the semi-flexible lip element and the hygienic protection means,
another part located over the entire external part of the semi-flexible lip element which, in the absence of hygienic protection means, would have been in contact with the face once the mask was in place on the latter, and
a third part which is designed to be pressed onto the face, by the effect of the pressure of the respiratory gas inside the mask, when the mask is worn, to provide a seal between the protection means and the face;
the structural part exerts a mechanical pressure on the semi-flexible lip element, the value of which is greater than the maximum value of the maximum pressure of the respiratory gas, which can prevail inside the mask;
the first, second and third areas are formed by a single elastic film; and
the structural part includes an elastic thread.
Other aspects, objects and advantages of the invention will become apparent from reading the description of a number of these embodiments.
According to a variant, illustrated by FIG. 2, a third part 4 c, forming a thin lip element, prolongs the part 4 b and extends beyond the semi-flexible lip element 6 by a few millimeters to make the mask 2 more comfortable to wear and to improve the seal between the hygienic protection system 4 and face of the user 1. Third part 4 c may also be referred to as lip insulation part 4 c. This part 4 c is, for example, also made of silicone or latex, but is thinner than the part 4 b.
According to another variant, illustrated by FIG. 3, a fourth part 4 d, also forming a thin lip element, prolongs the third part 4 c so as to at least partly cover the outer surface of the semi-flexible lip 6. This part 4 d also provides a hygienic protection function. It can also be made of silicone or latex like the part 4 c. Fourth part 4d may also be referred to as lip extension part 4 d.
According to yet another variant, illustrated by FIG. 4, the part 4 a has a corrugated shape, with corrugations substantially centered inside the mask 2 and/or the inspiratory valve 8, in order to reduce the pressure drop and/or facilitate the handling and/or extraction and replacement of the hygienic protection means 4.
a part 4 c which insulates the semi-flexible lip element 6 from the skin P of the user 1,
another, so-called structural, part 4 b, which rests in the hollow of the semi-flexible lip element 6, preventing the hygienic protection means 4 from coming away from the mask 2, and
yet another part 4 b′, placed outside the mask 2, preventing the hygienic protection means 4 from entering into the mask 2 when it is used and if possibly including an elastic thread 13 gripping the semi-flexible lip element 6.
The part 4 c which insulates the semi-flexible lip element 6 from the skin P of the user 1 is placed all around this semi-flexible lip element 6. It is placed on the external part of the semi-flexible lip element 6, but, possibly, also over a large portion of its internal part. This part 4 c is made of silicone, latex or a fibrous or woven material, for example.
The last part 4 b′, the one possibly including an elastic thread 13, is fixed all around the outer perimeter of the hygienic protection system 4 in order to keep it stably positioned by preventing it from re-entering into the mask 2 while it is being used. This part 4 b′ can be made of silicone or latex, for example. Part 4 b′ may also be referred to as lip securing part 4 b′.
This architecture takes into account the possible elastic distortions of the mask 2, of the structural part 4 b and of the possible thread 13, so that the assembly comprising the hygienic protection means 4, the structural part 4 b and the possible elastic thread 13, can easily be replaced after each use.
a part 4 b′ on which the thin film is pulled against the semi-flexible lip element 6; this area can be strengthened by a reinforcing structure consisting of an elastic thread 13 incorporated in the thin film; this particular arrangement allows the thin film to be replaced easily and firmly presses it on the outside of the semi-flexible lip element 6 by creating a pressure PM providing the seal between the thin film and the semi-flexible lip element 6; the elastic characteristics of the assembly comprising the thin film and the reinforcing structure are chosen so that the pressure PM exerted is greater than the relative pressure PA of the air contained inside the mask 2, but without being too great to avoid significantly distorting the semi-flexible lip element 6;
a part 4 c placed between the skin P and the semi-flexible lip element 6 which forms a hygienic protection; and
a part 4 d extending beyond the semi-flexible lip element 6; this part is very flexible, is used to follow the contours of the skin P and any folds in it and thus provide the seal between the skin P and the thin film.
This thin film therefore provides a seal that is significantly better than the masks of the prior art.
US762039 Dec 2, 1903 Jun 7, 1904 James Freel Antiseptic attachment for telephone-mouthpieces.
US4873972 Feb 4, 1988 Oct 17, 1989 Moldex/Metric Products, Inc. Disposable filter respirator with inner molded face flange
US5094236 Feb 12, 1990 Mar 10, 1992 Better Breathing Inc. Face mask
US5155863 May 23, 1991 Oct 20, 1992 Roberts Johniece T Removable protective cover for breathing mask
CN1095631A May 3, 1994 Nov 30, 1994 萧传儒 Improved gauze mask
DE390903C Dec 18, 1917 Jun 6, 1924 Verwertung Chemischer Produkte Halbmaske aus weichem Stoff zum Abhalten schaedlicher Gase
DE3032437A1 Aug 28, 1980 Mar 11, 1982 Draegerwerk Ag Dust filter in form of half face mask - has corrugated paper filtering material edges fixed by support ring, abutting rigid conical edge ring
DE20001040U1 Jan 21, 2000 Apr 6, 2000 Mpv Truma Ges Fuer Medizintech Nasale Beatmungsmaske und Maskenkissen für eine nasale Beatmungsmaske
EP0258508A1 Sep 5, 1986 Mar 9, 1988 Siebe North, Inc. Replaceable filter respirator
FR104670A Title not available
FR300419A Title not available
FR301024A Title not available
FR2657264A1 Title not available
FR2682043A1 Title not available
FR2812819A1 Title not available
GB2176404A Title not available
U.S. Classification 128/206.28, 128/206.21, 128/205.25
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SCHEGERIN, ROBERT;REEL/FRAME:017552/0802
Owner name: ZODIAC AEROTECHNICS, FRANCE
Free format text: CHANGE OF NAME;ASSIGNOR:INTERTECHNIQUE;REEL/FRAME:033593/0289