Paul Francis Freund

US Patent:

47924802, Dec 20, 1988

Filed:

Sep 14, 1987

Appl. No.:

7/095682

Inventors:

Paul X. Freund - Zelienople PA
Sheridan J. Rodgers - Ellwood City PA
Christopher J. Kairys - Allison Park PA

International Classification:

B32B 2700

US Classification:

428286

Abstract:

A material suitable for fabrication into protective garments that is a laminate formed from a layer of a reflective metallic material to provide flash protection and a layer that inhibits penetration by toxic and corrosive chemicals to protect against chemical exposure; both adhered to a cloth substrate to provide support.

US Patent:

D3823415, Aug 12, 1997

Filed:

Mar 27, 1996

Appl. No.:

D/052264

Inventors:

Paul X. Freund - Mars PA

Assignee:

Mine Safety Appliances Company - Pittsburgh PA

International Classification:

2902

US Classification:

D241101

US Patent:

48163309, Mar 28, 1989

Filed:

Aug 26, 1987

Appl. No.:

7/089426

Inventors:

Paul X. Freund - Zelienople PA
Zane N. Frund - Pittsburgh PA

International Classification:

B32B 2708
B32B 3106

US Classification:

428286

Abstract:

A chemical resistant garment material, that is a laminate formed from layers of skived Teflon that have been adhered to a cloth substrate, for use in protective clothing to guard against exposure to toxic agents.

US Patent:

55929370, Jan 14, 1997

Filed:

Jun 7, 1995

Appl. No.:

8/485172

Inventors:

Paul X. Freund - Mars PA

Assignee:

Mine Safety Appliances Company - Pittsburgh PA

International Classification:

A62B 1808
A62B 904

US Classification:

12820616

Abstract:

The present invention provides a respirator mask having a very soft, compliant facepiece that has several stiffening elements integrated therein. The respirator mask preferably includes an exhalation valve and a pair of filter cartridges. It also has a yolk which complements the facepiece and provides for attachment of a harness to secure the respirator mask to the user's face. The respirator mask is lightweight and extremely comfortable due to the novel facepiece made of three stiffening elements which are completely surrounded by and bonded to a flexible material.

US Patent:

49426281, Jul 24, 1990

Filed:

Sep 20, 1989

Appl. No.:

7/409932

Inventors:

Paul X. Freund - Pittsburgh PA

Assignee:

Mine Safety Appliances Company - Pittsburgh PA

International Classification:

A42B 304
A42B 314

US Classification:

2416

Abstract:

A head protection or helmet suspension is shown having a ratchet adjustment apparatus for the adjustment of the suspension size where the ratchet apparatus is comprised of three parts, all pre-molded of resilient plastic material and having a pre-molded spring fixed around the center of the adjustment knob to engage pins in the ratchet case to lock the suspension size in position. The assembly has no metal parts and is therefore suitable for use around electricity and electrical apparatus.