BREATHING BAGS

• US 3,638,648 A
• Filed: 02/19/1970
• Issued: 02/01/1972
• Est. Priority Date: 02/19/1970
• Status: Expired due to Term

• Current Assignee: Layton A. Wise
• Original Assignee: Layton A. Wise
• Inventors: Wise, Layton A.
• Primary Examiner(s): Gaudet, Richard A.
• Assistant Examiner(s): Mitchell, J. B.
• Application Number:
  US05/012,202
• Time in Patent Office: 712 Days
• Field of Search: 128/202,142.2,203,191,142,147,142.3,142.5-145.8,146-146.7 156/217,227
• US Class Current: 128/205.17
• CPC Class Codes: A62B 9/00 Component parts for respiratory or breathing apparatus A62B19/00, A62B21/00, A62B23/00 take precedence
• CPC Class Codes: Y10T 156/1026 with slitting or removal of material at reshaping area prior to reshaping
• CPC Class Codes: Y10T 156/1036 Bending of one piece blank and joining edges to form article
• CPC Class Codes: Y10T 156/1051 by folding
• CPC Class Codes: Y10T 156/1066 Cutting to shape joining edge surfaces only

Abstract

A single strip of flexible and impervious material is folded lengthwise upon itself to form a double-thickness member, which is provided midway between its ends with a recess extending inwardly from one edge. The edges of the strip and substantially all of the area between the recess and the other edge of said member are sealed together so that two longitudinally spaced breathing bags are formed that are integrally connected at their inner ends by a band adapted to extend around the back of the neck to suspend the bags over the chest. Each bag has an opening therein near its outer or lower end.

Claims

1. A pair of longitudinally spaced breathing bags comprising a single strip of flexible impervious material folded lengthwise upon itself to form a double-thickness member, said member being provided midway between its ends with a recess extending inwardly from one edge thereof, and an adhesive cementing together the edges of the strip and substantially all of the area between said recess and the other edge of said member, whereby two bags are formed that are integrally connected at their inner ends by a band adapted to extend around the back of the neck and suspend the bags against the chest, each bag having an opening therein near its outer end.

2. A pair of breathing bags according to claim 1, in which said recess extends inwardly from the edges of said strip, and the folds of the suspended bags are located adjacent each other.

3. A pair of breathing bags according to claim 2, in which said openings are located along said other edge of said member in positions to face each other when the bags are suspended against the chest of the user.

4. In breathing apparatus, a pair of substantially vertical laterally spaced rectangular breathing bags provided near their lower ends with openings facing each other, and a double-layer band integrally connected to the upper inner corner portions of the bags and adapted to extend around the back of the neck to suspend the bags over the chest of the user, the bags and band being formed from a single strip of flexible impervious material folded lengthwise upon itself to form a double-thickness member, said member being provided midway between its ends with a recess extending inwardly from one edge thereof to form said band, the edges of the strip and the layers of said band being cemented together.

5. In breathing apparatus according to claim 4, said recess extending inwardly from the edges of said strip, and the folds of the bags being located adjacent each other.

6. In breathing apparatus according to claim 4, an air-purifying canister disposed between said bags, and means connecting said bag openings with the canister and supporting it from the bags.