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US3577564A Expired / Lapsed US ⏱️ 0.0 years remaining

Face shield

Assignee: Ilc Industries Inc
•
Filing: 1968-08-26
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Granted: 1971-05-04
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Expires: 1988-08-26
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Abstract

Abstract Protective face shield and mounting means therefor which enable quick and easy structural association and disassociation relative to protective headgear, such as a helmet shell, while providing positive restraint against rotation or pivoting movement of the face shield inwardly toward the face of a wearer.

Inventors

  • 👤 Rodney S Hill

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 00:27
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/18; A42B3/22

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 201 words
A face shield device adapted to be readily and easily secured to and removed from a protective headgear while being securely positioned relative thereto and precluded from relative rotational movement comprising: a face shield having side portions that extend over each side of the face of the wearer and a substantially rigid tongue member extending generally upwardly from each side portion of the upper portion of said face shield, said tongue members adapted to extend in overlapped relationship with the inner margin of said headgear; an elongated slot positioned in each of said tongue members adapted to slidably engage a stud means positioned in the inside margin of said headgear to fixedly attach the face shield to said headgear with a portion of the top edges of said face shield positioned against the edge of said headgear; and a stud means receiving and locking means operatively connected to the inside surface of each of said tongue members and positioned over said elongated slot and adapted to engage one of said stud means when said stud means is inserted in said slot and to releasably lock said face shield to said headgear when said face shield is in its fixedly attached position.
Claim 2
Dependent Claim 201 words
A face shield device adapted to be readily and easily secured to and removed from a protective headgear while being securely positioned relative thereto and precluded from relative rotational movement comprising: a face shield having side portions that extend over each side of the face of the wearer and a substantially rigid tongue member extending generally upwardly from each side portion of the upper portion of said face shield, said tongue members adapted to extend in overlapped relationship with the inner margin of said headgear; an elongated slot positioned in each of said tongue members adapted to slidably engage a stud means positioned in the inside margin of said headgear to fixedly attach the face shield to said headgear with a portion of the top edges of said face shield positioned against the edge of said headgear; and a stud means receiving and locking means operatively connected to the inside surface of each of said tongue members and positioned over said elongated slot and adapted to engage one of said stud means when said stud means is inserted in said slot and to releasably lock said face shield to said headgear when said face shield is in its fixedly attached position.
Claim 3
Dependent Claim 245 words
A face shield device adapted to be readily and easily secured to and removed from a protective headgear while being securely positioned relative thereto and precluded from relative rotational movement comprising: a face shield having side portions that extend over each side of the face of the wearer and a substantially rigid tongue member extending generally upwardly from each side portion of the upper portion of said face shield, said tongue members constructed and arranged to extend in overlapped relationship with the inner margin of said headgear, and to position the shield in a fixed relationship with said headgear, each of said tongue members being provided with an elongated slot adapted to slidably engage a stud means positioned on the inside margin of said headgear to fixedly attach the face shield to said headgear with a portion of the top edge of said face shield positioned against the edge of said headgear; a biased leaf spring locking means operatively connected to the inside surface of each of said tongue members and positioned over said elongated slot having an opening therein that releasably engages one of said stud means when said face shield is in its fixedly attached position to releasably lock the face shield to said headgear; and a second pair of substantially rigid tongue members one of each positioned rearwardly of one of said slotted tongue members and having an upper edge portion thereon adapted to abut the headgear to preclude rotation relative thereto.
Claim 4
Dependent Claim 245 words
A face shield device adapted to be readily and easily secured to and removed from a protective headgear while being securely positioned relative thereto and precluded from relative rotational movement comprising: a face shield having side portions that extend over each side of the face of the wearer and a substantially rigid tongue member extending generally upwardly from each side portion of the upper portion of said face shield, said tongue members constructed and arranged to extend in overlapped relationship with the inner margin of said headgear, and to position the shield in a fixed relationship with said headgear, each of said tongue members being provided with an elongated slot adapted to slidably engage a stud means positioned on the inside margin of said headgear to fixedly attach the face shield to said headgear with a portion of the top edge of said face shield positioned against the edge of said headgear; a biased leaf spring locking means operatively connected to the inside surface of each of said tongue members and positioned over said elongated slot having an opening therein that releasably engages one of said stud means when said face shield is in its fixedly attached position to releasably lock the face shield to said headgear; and a second pair of substantially rigid tongue members one of each positioned rearwardly of one of said slotted tongue members and having an upper edge portion thereon adapted to abut the headgear to preclude rotation relative thereto.
Claim 5
Dependent Claim 42 words
The face shield of claim 2 in which said biased leaf spring locking means has means for lifting said spring out of engagement with said stud means for unlocking the face shield to permit removal of said face shield from said headgear.
Claim 6
Dependent Claim 74 words
The face shield of claim 2 adapted to fit on headgear having a generaLly forwardly extending peak and internally mounted chin strap snaps positioned on each side thereof disposed internally of the headgear wherein the front upper edge portion of said face shield medial of said first mentioned tongue members is adapted to abut the underside of such peak and said second mentioned tongue members are adapted to abut the chin strap attaching snaps.
Claim 7
Dependent Claim 62 words
The face shield defined in claim 2 wherein said slot is of generally keyhole-shaped configuration having an enlarged portion and an elongated portion extending therefrom adapted to receive stud means having a generally enlarged head through said enlarged portion of said slot and to be retained within said elongated portion thereof when said face shield is in fixed position on said headgear.
Claim 8
Dependent Claim 194 words
A protective headgear device having a removable face shield adapted to be readily and easily secured to and removed from said headgear while being securely positioned relative thereto and precluded from relative rotational movement comprising: a protective headgear; a pair of stud means, one positioned on each side of said headgear at the inner margin thereof; a face shield having a pair of spaced tongue members one on each side of said face shield and extending generally upwardly from the top portion thereof, said tongue members extending in overlapped relationship with said inner margin of said headgear; and elongated slot in each of said tongue members in slidable engagement with one of said stud means to fixedly position said face shield on said headgear with the top edge of the face shield engaging the front edge of said headgear between said tongue members; and a biased leaf spring locking means operatively connected to the inside surface of each of said tongue members and positioned over said elongated slot engaging one of said stud means, each of said locking means defining an opening therein that is in releasable engagement with one of said stud means.
Claim 9
Dependent Claim 194 words
A protective headgear device having a removable face shield adapted to be readily and easily secured to and removed from said headgear while being securely positioned relative thereto and precluded from relative rotational movement comprising: a protective headgear; a pair of stud means, one positioned on each side of said headgear at the inner margin thereof; a face shield having a pair of spaced tongue members one on each side of said face shield and extending generally upwardly from the top portion thereof, said tongue members extending in overlapped relationship with said inner margin of said headgear; and elongated slot in each of said tongue members in slidable engagement with one of said stud means to fixedly position said face shield on said headgear with the top edge of the face shield engaging the front edge of said headgear between said tongue members; and a biased leaf spring locking means operatively connected to the inside surface of each of said tongue members and positioned over said elongated slot engaging one of said stud means, each of said locking means defining an opening therein that is in releasable engagement with one of said stud means.

References Cited (Backward Citations)

US846678A Cited
US2167969A Cited
US2248331A Cited
US2934767A Cited
US3419907A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-05-03 1974-11-02 1975-05-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-05-03 1978-11-02 1979-05-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-05-03 1982-11-02 1983-05-04 $7700.00 Window Closed / Lapsed

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