Patent US3696442A successfully refreshed from Google Patents.
US3696442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective faceshield
Assignee: Fendall Co
•
Filing: 1969-11-03
•
Granted: 1972-10-10
•
Expires: 1989-11-03
Abstract
Abstract A protective faceshield is provided with head gear in which the head band may be positively adjusted to the proper size by an operator grasping and squeezing the head band with the fingers of one hand. One head band member is provided with a plurality of cam members which cooperate with the holes to provide a unidirectional slip adjustment in one direction and a positive locking in the opposite direction. The head band includes at the ends thereof apertured bosses for receiving corresponding studs of the head gear in a tight press fit to permit the head band to be popped from the head gear to facilitate ready replacement in the field. The head gear is pivotally attached to the crown, which pivotal attachment includes apparatus for providing a plurality of stop locations of the crown relative the head gear and which includes an overriding bevel or cam pin to permit the adjusting elements to slide past the stop in one direction and be positively stopped in the other direction to prevent excessive downward movement of the window. The window is releasably secured to the crown by a locking strap having a plurality of spaced-apart protrusions which cooperably engage corresponding spaced-apart apertures in both the window and the crown. The locking strap is semi-detachable from the crown to permit ease in replacement and proper tensioning of the window and to prevent loss of the strap.
Inventors
- 👤 Paul D Amundsen
- 👤 John N Liautaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:47
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/04; A61F9/06; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1498
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
260 words
A protective faceshield comprising: a crown, a faceshield window secured to said crown, head gear secured to said crown including first and second head band sections, engagement means coupling said first and second sections to permit relative movement thereof in one direction and selectively prevent relative movement thereof in the opposite direction for adjustment to head size, and means for pivotally securing said head gear to said crown including means forming an aperture in said crown, rotatable means carried by said head gear including a shaped portion extending through said aperture including a threaded bore, finger-operated screw means for threadably engaging said threaded bore, pressure transmitting means including a non-round shaped bore for receiving said shaped portion disposed between said crown and said screw means for mutual rotation with said rotatable means to permit rotation of said head gear without loosening said screw means, and a first adjustment member disposed between said crown and said rotatable means including at least one projection thereon, said rotatable means including means for receiving said projection to fix said rotatable means and said first adjustment member for mutual rotation, and a second adjustment member mounted for rotation with said first adjustment member, means for adjusting the position of said members relative to each other, and cam means secured to said crown and disposed to abut said member upon rotation of said head gear in one direction, said cam means including a cam surface permitting a spring override of said cam means by said member upon rotation of said head gear in the opposite direction.
Claim 2
Dependent Claim
260 words
A protective faceshield comprising: a crown, a faceshield window secured to said crown, head gear secured to said crown including first and second head band sections, engagement means coupling said first and second sections to permit relative movement thereof in one direction and selectively prevent relative movement thereof in the opposite direction for adjustment to head size, and means for pivotally securing said head gear to said crown including means forming an aperture in said crown, rotatable means carried by said head gear including a shaped portion extending through said aperture including a threaded bore, finger-operated screw means for threadably engaging said threaded bore, pressure transmitting means including a non-round shaped bore for receiving said shaped portion disposed between said crown and said screw means for mutual rotation with said rotatable means to permit rotation of said head gear without loosening said screw means, and a first adjustment member disposed between said crown and said rotatable means including at least one projection thereon, said rotatable means including means for receiving said projection to fix said rotatable means and said first adjustment member for mutual rotation, and a second adjustment member mounted for rotation with said first adjustment member, means for adjusting the position of said members relative to each other, and cam means secured to said crown and disposed to abut said member upon rotation of said head gear in one direction, said cam means including a cam surface permitting a spring override of said cam means by said member upon rotation of said head gear in the opposite direction.
Claim 3
Dependent Claim
147 words
A protective faceshield comprising: a crown, a faceshield window secured to said crown, head gear secured to said crown including first and second head band sections, and engagement means coupling said first and second sections to permit relative movement thereof in one direction and selectively prevent relative movement thereof in the opposite direction for adjusting to head size and means for securing said faceshield to said crown comprising a strap, non-yielding means fixedly pivotally securing said strap at one end thereof to said crown and including a plurality of spaced-apart protrusions thereon, said crown and said window having corresponding spaced-apart and aligned apertures therein for receiving said protrusion, and adjustable rotatable cam means for releasably securing the other end of said strap to said crown to provide an interlocked crown and window assembly, said securing cam means including means for positively tensioning said strap in assembled relation.
Claim 4
Dependent Claim
147 words
A protective faceshield comprising: a crown, a faceshield window secured to said crown, head gear secured to said crown including first and second head band sections, and engagement means coupling said first and second sections to permit relative movement thereof in one direction and selectively prevent relative movement thereof in the opposite direction for adjusting to head size and means for securing said faceshield to said crown comprising a strap, non-yielding means fixedly pivotally securing said strap at one end thereof to said crown and including a plurality of spaced-apart protrusions thereon, said crown and said window having corresponding spaced-apart and aligned apertures therein for receiving said protrusion, and adjustable rotatable cam means for releasably securing the other end of said strap to said crown to provide an interlocked crown and window assembly, said securing cam means including means for positively tensioning said strap in assembled relation.
Claim 5
Dependent Claim
181 words
In a protective faceshield, a crown, a window secured to said crown, head gear, means adjusting said head gear to the head size of the wearer, and coupling means for pivotally securing said head gear to said crown, said coupling means comprising means forming an aperture in said crown, rotatable means carried by said head gear and including a shaped portion extending through said aperture having a threaded bore therein, and being axially longer than the aperture to project a distance from the crown, screw means for threadedly engaging said threaded bore, said screw means including a head, and a pressure transmitting member including a shaped bore conforming to the shape of and receiving said shaped portion of said rotatable means for mutual rotation therewith, said pressure transmitting member disposed between said head of said screw means and said crown and being axially thicker than said distance in order to be directly engaged by said head and to space said head and said crown to prevent loosening of said screw means upon rotational movement of said head gear relative said crown.
Claim 6
Dependent Claim
181 words
In a protective faceshield, a crown, a window secured to said crown, head gear, means adjusting said head gear to the head size of the wearer, and coupling means for pivotally securing said head gear to said crown, said coupling means comprising means forming an aperture in said crown, rotatable means carried by said head gear and including a shaped portion extending through said aperture having a threaded bore therein, and being axially longer than the aperture to project a distance from the crown, screw means for threadedly engaging said threaded bore, said screw means including a head, and a pressure transmitting member including a shaped bore conforming to the shape of and receiving said shaped portion of said rotatable means for mutual rotation therewith, said pressure transmitting member disposed between said head of said screw means and said crown and being axially thicker than said distance in order to be directly engaged by said head and to space said head and said crown to prevent loosening of said screw means upon rotational movement of said head gear relative said crown.
Claim 7
Dependent Claim
191 words
In a protective faceshield, a crown, a window secured to said crown, head gear, means adjusting said head gear to the head size of the wearer, and coupling means for pivotaLly securing said head gear to said crown, said coupling means comprising means forming an aperture in said crown, rotatable means carried by said head gear and including a shaped portion extending through said aperture having a threaded bore therein, screw means for threadedly engaging said threaded bore, said screw means including a head, and pressure transmitting means including a shaped bore conforming to the shape of and receiving said shaped portion of said rotatable means for mutual rotation therewith, said pressure transmitting means disposed between said head of said screw means and said crown to space said head and said crown to prevent loosening of said screw means upon rotational movement of said head gear relative said crown, including an arm secured for rotation with said head gear, and means on said crown cooperable with said arm to prevent rotation of said arm relative to said crown in one direction and permit rotation of said arm in the opposite direction.
Claim 8
Dependent Claim
191 words
In a protective faceshield, a crown, a window secured to said crown, head gear, means adjusting said head gear to the head size of the wearer, and coupling means for pivotaLly securing said head gear to said crown, said coupling means comprising means forming an aperture in said crown, rotatable means carried by said head gear and including a shaped portion extending through said aperture having a threaded bore therein, screw means for threadedly engaging said threaded bore, said screw means including a head, and pressure transmitting means including a shaped bore conforming to the shape of and receiving said shaped portion of said rotatable means for mutual rotation therewith, said pressure transmitting means disposed between said head of said screw means and said crown to space said head and said crown to prevent loosening of said screw means upon rotational movement of said head gear relative said crown, including an arm secured for rotation with said head gear, and means on said crown cooperable with said arm to prevent rotation of said arm relative to said crown in one direction and permit rotation of said arm in the opposite direction.
Claim 9
Dependent Claim
220 words
In a protective faceshield, a crown, a window secured to said crown, head gear, means adjusting said head gear to the head size of the wearer, and coupling means for pivotally securing said head gear to said crown, said coupling means comprising means forming an aperture in said crown, rotatable means carried by said head gear and including a a shaped portion extending through said aperture having a threaded bore therein, screw means for threadedly engaging said threaded bore, said screw means including a head, and pressure transmitting means including a shaped bore conforming to the shape of and receiving said shaped portion of said rotatable means for mutual rotation therewith, said pressure transmitting means disposed between said head of said screw means and said crown to space said head and said crown to prevent loosening of said screw means upon rotation movement of said head gear relative said crown, including an arm secured for rotation with said head gear, and means cooperable with said arm to prevent rotation in one direction and permit rotation in the opposite direction, wherein the last-mentioned means includes a pin secured to said crown in an interference relationship with rotational travel of said arm, said pin having a camming surface oriented to permit override thereof by said arm upon rotation of said opposite direction.
Claim 10
Dependent Claim
220 words
In a protective faceshield, a crown, a window secured to said crown, head gear, means adjusting said head gear to the head size of the wearer, and coupling means for pivotally securing said head gear to said crown, said coupling means comprising means forming an aperture in said crown, rotatable means carried by said head gear and including a a shaped portion extending through said aperture having a threaded bore therein, screw means for threadedly engaging said threaded bore, said screw means including a head, and pressure transmitting means including a shaped bore conforming to the shape of and receiving said shaped portion of said rotatable means for mutual rotation therewith, said pressure transmitting means disposed between said head of said screw means and said crown to space said head and said crown to prevent loosening of said screw means upon rotation movement of said head gear relative said crown, including an arm secured for rotation with said head gear, and means cooperable with said arm to prevent rotation in one direction and permit rotation in the opposite direction, wherein the last-mentioned means includes a pin secured to said crown in an interference relationship with rotational travel of said arm, said pin having a camming surface oriented to permit override thereof by said arm upon rotation of said opposite direction.
Claim 11
Dependent Claim
119 words
In a protective faceshield having a crown, a window secured to said crown and head gear secured to said crown, the improvement comprising means for releasably securing said window to said crown including first means forming a plurality of spaced-apart apertures in said window, second means forming a plurality of spaced-apart apertures in said crown for alignment with the apertures of said window, a strap, non-yielding means fixedly pivotally securing said strap at one end thereof to said crown, said strap including a plurality of protrusions thereon to be received by the aligned apertures of said crown and window, and adjustable means for releasably securing the other end of said strap to said crown with said strap adjustably tensioned.
Claim 12
Dependent Claim
119 words
In a protective faceshield having a crown, a window secured to said crown and head gear secured to said crown, the improvement comprising means for releasably securing said window to said crown including first means forming a plurality of spaced-apart apertures in said window, second means forming a plurality of spaced-apart apertures in said crown for alignment with the apertures of said window, a strap, non-yielding means fixedly pivotally securing said strap at one end thereof to said crown, said strap including a plurality of protrusions thereon to be received by the aligned apertures of said crown and window, and adjustable means for releasably securing the other end of said strap to said crown with said strap adjustably tensioned.
Claim 13
Dependent Claim
169 words
In a protective faceshield having a crown, a window secured to said crown and head gear secured to said crown, the improvement comprising means for releasably securing said window to said crown including first means forming a plurality of spaced-apart apertures in said window, second means forming a plurality of spaced-apart apertures in said crown for alignment with the apertures of said window, a strap, means permanently pivotally securing one end thereof to said crown, said strap including a plurality of protrusions thereon to be received by the aligned apertures of said crown and window, and means for securing the other end of said strap to said crown with said strap in tension, wherein the last-mentioned means comprises lever means secured to said crown, means forming an elongate slot in said other end of said strap for receiving said lever means, and means formed on said crown cooperable with said lever means to tenSion said strap, said lever means being adjustable and releasably securing the strap in adjustable tension.
Claim 14
Dependent Claim
169 words
In a protective faceshield having a crown, a window secured to said crown and head gear secured to said crown, the improvement comprising means for releasably securing said window to said crown including first means forming a plurality of spaced-apart apertures in said window, second means forming a plurality of spaced-apart apertures in said crown for alignment with the apertures of said window, a strap, means permanently pivotally securing one end thereof to said crown, said strap including a plurality of protrusions thereon to be received by the aligned apertures of said crown and window, and means for securing the other end of said strap to said crown with said strap in tension, wherein the last-mentioned means comprises lever means secured to said crown, means forming an elongate slot in said other end of said strap for receiving said lever means, and means formed on said crown cooperable with said lever means to tenSion said strap, said lever means being adjustable and releasably securing the strap in adjustable tension.
Claim 15
Dependent Claim
132 words
A crown-to-headgear attachment comprising means for pivotally securing said head gear to said crown including means forming a circular aperture in said crown, rotatable means carried by said head gear including a shaped portion extending through said aperture including a threaded bore, and being axially longer than said aperture, finger-operated screw means for threadably engaging said threaded bore and having a head, and pressure transmitting means including a non-round shaped bore for receiving said shaped portion disposed between said crown and said screw means for mutual rotation with said rotatable means to permit rotation of said head gear without loosening said screw means, said pressure transmitting means being axially longer than the part of said shaped portion projecting beyond the aperture for direct engagement between said head and said pressure transmitting means.
Claim 16
Dependent Claim
132 words
A crown-to-headgear attachment comprising means for pivotally securing said head gear to said crown including means forming a circular aperture in said crown, rotatable means carried by said head gear including a shaped portion extending through said aperture including a threaded bore, and being axially longer than said aperture, finger-operated screw means for threadably engaging said threaded bore and having a head, and pressure transmitting means including a non-round shaped bore for receiving said shaped portion disposed between said crown and said screw means for mutual rotation with said rotatable means to permit rotation of said head gear without loosening said screw means, said pressure transmitting means being axially longer than the part of said shaped portion projecting beyond the aperture for direct engagement between said head and said pressure transmitting means.
Claim 17
Dependent Claim
128 words
Attachment structure for securing a curved window to a curved crown comprising a strap, non-yielding means fixedly securing said strap at one end thereof to said crown, said strap including a plurality of spaced-apart protrusions thereon, said crown and said window having corresponding spaced-apart and aligned apertures therein receiving said protrusions, the transverse width of the apertures in said window being at least as small as the transverse width of said protrusions to cooperate with said protrusions in press fit relation, and means for securing the other end of said strap to said crown to provide an interlocked crown and window assembly, said last-named means including a rotatable means attached to said crown projecting through an opening in said strap adjustably releasably tensioning said strap in assembled relation.
Claim 18
Dependent Claim
128 words
Attachment structure for securing a curved window to a curved crown comprising a strap, non-yielding means fixedly securing said strap at one end thereof to said crown, said strap including a plurality of spaced-apart protrusions thereon, said crown and said window having corresponding spaced-apart and aligned apertures therein receiving said protrusions, the transverse width of the apertures in said window being at least as small as the transverse width of said protrusions to cooperate with said protrusions in press fit relation, and means for securing the other end of said strap to said crown to provide an interlocked crown and window assembly, said last-named means including a rotatable means attached to said crown projecting through an opening in said strap adjustably releasably tensioning said strap in assembled relation.
Claim 19
Dependent Claim
106 words
Attachment structure for securing a curved window to a curved crown comprising a strap, means permanently securing said strap at one end thereof to said crown, said strap including a plurality of spaced-apart protrusions thereon, said crown and said window having corresponding spaced-apart and aligned apertures therein receiving said protrusions, the transverse width of the apertures in said window being at least as small as the transverse width of said protrusions to cooperate with said protrusions in press fit relation, and adjustable means for releasably securing the other end of said strap to said crown in adjustable tension to provide an interlocked crown and window assembly.
Claim 20
Dependent Claim
106 words
Attachment structure for securing a curved window to a curved crown comprising a strap, means permanently securing said strap at one end thereof to said crown, said strap including a plurality of spaced-apart protrusions thereon, said crown and said window having corresponding spaced-apart and aligned apertures therein receiving said protrusions, the transverse width of the apertures in said window being at least as small as the transverse width of said protrusions to cooperate with said protrusions in press fit relation, and adjustable means for releasably securing the other end of said strap to said crown in adjustable tension to provide an interlocked crown and window assembly.
Claim 21
Dependent Claim
241 words
A protective faceshield comprising: a crown, a faceshield window secured to said crown, head gear secured to said crown including first and second head band sections formed of stiff resilient material having an unstressed longitudinally straight shape, and engagement means coupling said first and second sections to permit relative movement thereof in one direction to shorten their total length and selectively prevent relative movement thereof in the opposite direction for adjusting to head size while in position on the wearer, said first head band section comprising a plurality of apertures therein spaced apart longitudinally of the band and said second head band section having projecting cam means thereon including a sloped cam surface disposed toward said first head band section to spring into and over said apertures upon relative movement in said one direction and to seat in said apertures to prevent relative movement in said opposite direction, said second head band section further including means adjacent said cam means and longitudinally spaced therefrom for closely slidably embracing said first head band section to force said cam means against said first head band section, the bending of the head band sections around the wearer''s head urging said cam means into said apertures, at least one of said sections being manually deflectable along its length when said head band is off the wearer''s head to permit separation of said cam means from an engaged aperture to permit aDjustment in said opposite direction.
Claim 22
Dependent Claim
241 words
A protective faceshield comprising: a crown, a faceshield window secured to said crown, head gear secured to said crown including first and second head band sections formed of stiff resilient material having an unstressed longitudinally straight shape, and engagement means coupling said first and second sections to permit relative movement thereof in one direction to shorten their total length and selectively prevent relative movement thereof in the opposite direction for adjusting to head size while in position on the wearer, said first head band section comprising a plurality of apertures therein spaced apart longitudinally of the band and said second head band section having projecting cam means thereon including a sloped cam surface disposed toward said first head band section to spring into and over said apertures upon relative movement in said one direction and to seat in said apertures to prevent relative movement in said opposite direction, said second head band section further including means adjacent said cam means and longitudinally spaced therefrom for closely slidably embracing said first head band section to force said cam means against said first head band section, the bending of the head band sections around the wearer''s head urging said cam means into said apertures, at least one of said sections being manually deflectable along its length when said head band is off the wearer''s head to permit separation of said cam means from an engaged aperture to permit aDjustment in said opposite direction.
References Cited (Backward Citations)
US2272833A
Cited
US2390006A
Cited
US2606321A
Cited
US2658200A
Cited
US2747191A
Cited
US2907041A
Cited
US3075201A
Cited
US3144695A
Cited
US3152376A
Cited
US3430263A
Cited
US3500474A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |