A respirator apparatus including an improved helmet or headgear construction with a unique shield including a protective lens and cuff attachment therefor. The protective lens is a thin clear plastic sheet designed to be used as a lens with a (PAPR) respirator and the cuff is an attached fabric or similar material designed to form a facial seal around the wearer.

Claims

16 · 1 independent · depth 3

16 granted claims

›1.independentA protective headgear apparatus comprising,na facial shield including first and second thin sheets of material which substantially overlie each other,…+15

›2.↳ 1The apparatus recited in claim 1 wherein,nsaid second portion of the perimeter of said first sheet of material is a substantially straight edge.d2

›3.↳ 1The apparatus recited in claim 1 wherein,nsaid second portion of the perimeter of said second sheet is a curved edge.d2+1

›4.↳ 1The apparatus recited in claim 1 including,na support structure for supporting said facial shield thereon.d2+3

›8.↳ 1The apparatus recited in claim 1 wherein,na portion of said second sheet adjacent to free edge is cut in an interlocking chevron pattern allowing the …d2+1

›10.↳ 1The apparatus recited in claim 1 wherein,na portion of said second sheet is elastic.d2

›11.↳ 1The apparatus recited in claim 1 wherein,nsaid second portion of said first sheet extends beyond said second portion of said second sheet.d2+1

›14.↳ 1The apparatus recited in claim 1 wherein,nsaid apparatus comprises a lens and a cuff to define an enclosed area about a wearer's face.d2

›15.↳ 1The apparatus recited in claim 1 wherein,nsaid support tab extends from said one edge thereof toward said second portion of the perimeter of said seco…d2

›16.↳ 1The apparatus recited in claim 1 wherein,nsaid support tab flexes around said one edge in order to selectively separate said second portions of said f…d2

Classifications

4 codes

IPC · International Patent Classification

Section A — Human necessities

A42B3/20

USPC · US Patent Classification

2/92/4242/15

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Pendency

3.7 y

1,352 days filing → grant

Office actions

after a restriction

Responses

1 RCE

Interviews

examiner interview summaries

Examiner

Christopher Harmon

art unit 3721 · TC 3700

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Citations: 6 back · 0 forward

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Priority chain

1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20100125934 A1	27 May 2010

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