Alan R Levin

US Patent:

6497232, Dec 24, 2002

Filed:

Oct 16, 2001

Appl. No.:

09/981576

Inventors:

Keith E. Fecteau - Wilbraham MA
David Honan - Concord MA
Kevin M. Krauss - Brighton MA
Alan Levin - New Haven CT

Assignee:

Cabot Safety Intermediate Corporation - Newark DE

International Classification:

A62B 1808

US Classification:

12820711, 12820124, 12820624, 12820612

Abstract:

A quick release mechanism and headpiece for use with a respirator. The quick release mechanism uses a cam latch pivotally attached to a yoke to control the tension in an upper tension strap. In the latched position the upper tension strap traverses the yoke to support and seal the respirator mask against the face of the wearer. In the unlatched position the upper tension straps loosely support the mask below the chin of the wearer in a parked position. In one embodiment, a guide is provided on the yoke to ensure that the mask may be consistently donned and doffed with minimal effort (e. g. , potential one-handed donning and doffing). An opening may also be provided in the face mask and optionally in the yoke, and a filter may be disposed within the opening to provide the desired filtration of inhaled gases.

US Patent:

6536435, Mar 25, 2003

Filed:

Jun 30, 2000

Appl. No.:

09/608899

Inventors:

Keith E. Fecteau - Wilbraham MA
David Honan - Concord MA
Kevin Krauss - Brighton MA
Alan Levin - New Haven CT
Ryan Sullivan - Brighton MA

Assignee:

Cabot Safety Intermediate Corporation - Newark DE

International Classification:

A62B 1808

US Classification:

12820711, 12820124, 12820525, 12820612, 12820621, 12820624

Abstract:

A quick release mechanism and headpiece for use with a respirator. The quick release mechanism uses a cam latch pivotably attached to a yoke to control the tension in an upper tension strap. In the latched position the upper tension strap traverses the yoke and, together with a pair of lower tension straps and neck catch, support and seal the respirator mask against the face of the wearer. In the unlatched position the upper tension straps loosely support the mask below the chin of the wearer in a parked position. The upper strap is attached to a circular shaped headpiece having a crown piece fitting to the top of the head of the wearer. The lower straps are attached to a rounded neck catch secured behind the neck of the wearer. The upper and lower straps preferably and advantageously comprise a material or materials having a low maximum elongation to ensure a snug and comfortable mask fit. Filter or sorbent cartridges and caps are optimized to provide easy replacement of filter or sorbent elements and maximal exposure of filter or sorbent material surface area.

US Patent:

D473937, Apr 29, 2003

Filed:

Oct 16, 2001

Appl. No.:

29/149754

Inventors:

Keith E. Fecteau - Wilbraham MA
David Honan - Concord MA
Kevin Krauss - Brighton MA
Alan Levin - New Haven CT
Ryan Sullivan - Brighton MA

Assignee:

Cabot Safety Intermediate Corp. - Southbridge MA

International Classification:

2902

US Classification:

D241101, D241102