US3918098A - Threaded earcup suspension system - Google Patents

Threaded earcup suspension system Download PDF

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Publication number
US3918098A
US3918098A US543132*A US54313275A US3918098A US 3918098 A US3918098 A US 3918098A US 54313275 A US54313275 A US 54313275A US 3918098 A US3918098 A US 3918098A
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United States
Prior art keywords
earcup
shell
adjustable
suspension
joint
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Expired - Lifetime
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US543132*A
Inventor
Robert P Devaney
Erwin J Fellner
William A Cohen
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Scott Technologies Inc
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CAPTECH Inc
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Priority to US543132*A priority Critical patent/US3918098A/en
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Assigned to TEXACE CORPORATION A CORP. OF TEX. reassignment TEXACE CORPORATION A CORP. OF TEX. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). 11-10-78 Assignors: CAPTECH INC.
Assigned to CAPTECH INC. reassignment CAPTECH INC. NUNC PRO TUNC ASSIGNMENT (SEE DOCUMENT FOR DETAILS). 7-31-69 Assignors: SIERRA ENGINEERING CO.
Assigned to TEXACE CORPORATION, A CORP. OF TX reassignment TEXACE CORPORATION, A CORP. OF TX MERGER (SEE DOCUMENT FOR DETAILS). TEXAS, EFFECTIVE SEPT. 20, 1978 Assignors: CAPTECH INC., A CORP. OF CA., TEXACE CORPORATION, A CORP. OF TX
Assigned to SCOTT AVIATION-SIERRA PRODUCTS, INC., reassignment SCOTT AVIATION-SIERRA PRODUCTS, INC., CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). 11-10-78 Assignors: TEXACE CORPORATION
Assigned to FIGGIE INTERNATIONAL INC., A CORP. OF OHIO reassignment FIGGIE INTERNATIONAL INC., A CORP. OF OHIO ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SCOTT AVIATION-SIERRA PRODUCTS, INC.
Assigned to FIGGIE INTERNATIONAL INC. reassignment FIGGIE INTERNATIONAL INC. MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE DATE: DECEMBER 31, 1986 Assignors: FIGGIE INTERNATIONAL INC., (MERGED INTO) FIGGIE INTERNATIONAL HOLDINGS INC. (CHANGED TO)
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    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/16—Ear protection devices
    • A42B3/166—Integral hearing protection
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
    • A61F11/06—Protective devices for the ears
    • A61F11/14—Protective devices for the ears external, e.g. earcaps or earmuffs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D10/00—Flight suits

Definitions

  • An earcup suspension for a full coverage protective helmet makes use of a ball and socket between a rigid head contacting earcup and an adjustable assembly attached to the helmet shell.
  • the adjustable assembly is manipulated by a knob on the exterior of the helmet shell which has a threaded engagement with a stud to which the ball is connected. Because the stud is secured to prevent rotation, it is moved inwardly or outwardly by rotation of the knob so as to adjust the snugness of the fit of the rigid earcup with respect to the wearers head.
  • Another object of the invention is to provide a new and improved earcup suspension system which can be simply and readily manipulated by adjusting knobs or buttons on the exterior of the helmet shell using one hand only, whereby both the pressure of theearcup against the users headand the location of the earcup with respect to the helmet shellcan be quickly and readily adjusted.
  • Still another object of the invention is to provide a new and improved earcup suspension system, the construction and adjustability of which is such as to make possible effective noise attenuation when adjusted to the users head.
  • Still further among the objects of the invention is to provide a new and improved earcup suspension system which is simple and compact with parts concentrically located, making installation and adjustment positive and dependable under virtually all conditions.
  • the invention consists in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained as hereinafter set forth, pointed out in the appended claims, and illustrated in the accompanying drawings.
  • FIG. 1 is a longitudinal sectional view of the earcup suspension system mounted in a helmet shell;
  • FIG. 2 is a longitudinal cross-sectional view of the cushion between the rigid earcup and the shell;
  • FIG. 3 is an outside elevational view on line 3-3 FIG. 1;
  • FIG. 4 is a fragmentary cross-sectional view on line 4-4 of FIG. 1.
  • an earcup suspension system indicated generally by the reference character mounted upon a helmet shell 11.
  • a relatively rigid earcup 12 has an open side 13 adapted to engage the face of the user and a closed side 14.
  • a socket 15 Centerably disposed on the closed side is a socket 15 formed from the material of the earcup in which a ball 16 is mounted to provide universal movement for the earcup.
  • a retainer 17 overlies the ball 16 to hold it in the socket 15, and the retainer is attached to the earcup by suitable rivets l8.
  • the ball 16 is mounted on the end of a stud 19, and the stud in turn is retained within a bore 20 of a threaded shaft 21. More particularly thereare provided notches 22 in the threaded shaft for retention by a spring clip 23.
  • the threaded shaft 21 threadably engages a threaded sleeve 25 which is part of an adjusting
  • alocking assembly consisting of a locking collar on the outside of the shell, a flange 31 on the inside, and an exteriorly threaded skirt 32.
  • Awasher 33 lies between the flange 31 and the inside surface 34 of the-shell.
  • a shaft retainer plate 35 which is attached to the flange 31 by means of rivet 36.
  • the threaded shaft 21 extends through a hole 37 in the shaft retainer plate 35.
  • a lock finger 38 protrudes into a pocket 39 to prevent rotation of the flange and its threaded skirt when the locking collar is rotatably engaged .with the threads 40.
  • a foam pad 45 of appreciable thickness which separates the earcup 12 from the inside surface of the shell 11.
  • a central hole 46 in the foam pad 45 accommodates appropriate portions of the locking assembly, and a counter sink 47 is adapted to receive the flange 31 and washer 33 so that they are flush with the outside surface 48 of the foam pad in the fully retracted position.
  • the helmet In operation with the locking collar loosened and the adjusting knob rotated to a withdrawn position for the earcup 12, the helmet is donned and the earcup placed over the ear. Tilting is allowed for by reason of the employment of the ball and socket joint.
  • the locking assembly and hence the earcup l2 and the foam pad as well, can be moved about because of there being provided an opening 50 in the helmet shell 11 which is substantially greater in diameter than the outside diameter of the threaded skirt 32 which extends through it when the earcup has thus been shifted to a desired position.
  • the locking collar 30 is then rotated with respect to the threads 40, and the locking assembly exemplified by the flange 31 is drawn against the inside surface of the shell as the locking collar is screwed down against the outside surface, thereby to fasten the locking assembly to the shell and, accordingly, fix the position of the earcup.
  • the earcup Since normally the earcup would be withdrawn away from the head of the wearer to its farthest position during this initial adjustment, the earcup then can be moved toward the head of the wearer until a rim 51 of the earcup bears against the wearers face by rotation of the adjusting knob 26.
  • the knob As the knob is rotated, the threads on the threaded sleeve 25 engage the threaded shaft 21, and by rotation in the proper direction the threaded shaft 21, the stud 19, and therefore also the ball and socket joint are moved in a direction from left to right, as viewed in HO. 1, which serves to move the ,carcup in a corresponding direction towards the face of toward the rear of the helmet will retract the earcups toward the helmet shell.
  • An adjustable earcup suspension for mounting on a protective helmet shell comprising an earcup having one joint member of a universal joint disposed therein, a threaded stud including the other joint member of said joint, fastening means holding said joint members in operating association, said shell having a clearance recess in axial alignment with said earcup, a locking assembly having one element overlying the interior of the shell, a connecting section of cross-sectional size smaller than said recess extending through said recess and another element of said assembly overlying the exterior of the shell in adjustable engagement with said connecting section for adjustably fixing the position of the earcup relative to the center of the recess, an adjusting knob rotatably mounted on the exterior of the locking assembly and a threaded connection between the adjusting knob and said supporting stud whereby to adjustably shift the location of said'earcup alternatively a 4 away from or toward the shell.
  • An adjustable earcup suspension as in claim 1 wherein said earcup, said universal joint, said locking assembly and said adjusting knob are concentrically disposed on said shell.
  • An adjustable earcup suspension as in claim 4 wherein there is a lock finger on said one element of the locking assembly in anchored engagement with the shell whereby to secure said one element against rotation by said locking collar.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Pulmonology (AREA)
  • Biophysics (AREA)
  • Psychology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Helmets And Other Head Coverings (AREA)

Abstract

An earcup suspension for a full coverage protective helmet makes use of a ball and socket between a rigid head contacting earcup and an adjustable assembly attached to the helmet shell. The adjustable assembly is manipulated by a knob on the exterior of the helmet shell which has a threaded engagement with a stud to which the ball is connected. Because the stud is secured to prevent rotation, it is moved inwardly or outwardly by rotation of the knob so as to adjust the snugness of the fit of the rigid earcup with respect to the wearer''s head.

Description

United States Patent [1 1 Devaney et al.
[ Nov. 11, 1975 THREADED EARCUP SUSPENSION SYSTEM [73] Assignee: Sierra Engineering Co., Sierra Madre, Calif.
[22 Filed: Jan. 22, 1975 21 Appl. No.: 543,132
[52] US. Cl. 2/209; 2/6; 179/156 [51] Int. CI. A42B l/06 [58] Field of Search 2/209, 6, 8; 179/156 [56] References Cited UNITED STATES PATENTS 2,858,544 11/1958 Roth 2/209 3,148,376 9/1964 Aileo 2/209 X 3,864,756 2/l975 Desimone 2/6 FOREIGN PATENTS OR APPLICATIONS 555,101 8/1922 France .f. 179/156 286,081 2/l927 United Kingdom l79/l56 1.158.495 7/1969 United Kingdom 2/6 1,052,565 9/1953 France 179/156 PIT/1101') E.\'aminer-Werner H. Schroeder Assistant Eraminer-Peter Nerbun [57 ABSTRACT An earcup suspension for a full coverage protective helmet makes use of a ball and socket between a rigid head contacting earcup and an adjustable assembly attached to the helmet shell..The adjustable assembly is manipulated by a knob on the exterior of the helmet shell which has a threaded engagement with a stud to which the ball is connected. Because the stud is secured to prevent rotation, it is moved inwardly or outwardly by rotation of the knob so as to adjust the snugness of the fit of the rigid earcup with respect to the wearers head.
7 Claims, 4 Drawing Figures U.S. Patent Nov. 11, 1975 3,918,098
THREADED EARCUP SUSPENSION SYSTEM The comfort of fit of earcups within a flyers protective helmet is very important to his efficiency. Communication by way of the earcups is clearly of vital importance. Normally the position and snugness of earcups is initially adjusted to an individual users use before the helmet is donned, although some attempts have been made to build into the earcup mounting a degree of adjustability subsequent to donning. Those expedients heretofore available have had limited applicability and also have lacked the proper degree of universal adjustment. it is, moreover, especially advantageous to have earcups so constructed and fitted to the users head that exterior noises canbe effectively insulated from the users ears.
It is therefore among the objects of the invention to provide a new and improved earcup suspension system which provides a positive means for positioning noise attenuating earcups in a full coverage protective he]- met with full adjustability by the user while the helmet is worn. v
Another object of the invention is to provide a new and improved earcup suspension system which can be simply and readily manipulated by adjusting knobs or buttons on the exterior of the helmet shell using one hand only, whereby both the pressure of theearcup against the users headand the location of the earcup with respect to the helmet shellcan be quickly and readily adjusted.
Still another object of the invention is to provide a new and improved earcup suspension system, the construction and adjustability of which is such as to make possible effective noise attenuation when adjusted to the users head.
Still further among the objects of the invention is to provide a new and improved earcup suspension system which is simple and compact with parts concentrically located, making installation and adjustment positive and dependable under virtually all conditions.
With these and other objects in view, the invention consists in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained as hereinafter set forth, pointed out in the appended claims, and illustrated in the accompanying drawings.
In the drawings:
FIG. 1 is a longitudinal sectional view of the earcup suspension system mounted in a helmet shell;
FIG. 2 is a longitudinal cross-sectional view of the cushion between the rigid earcup and the shell;
FIG. 3 is an outside elevational view on line 3-3 FIG. 1;
FIG. 4 is a fragmentary cross-sectional view on line 4-4 of FIG. 1.
In an embodiment of the invention chosen for the purpose of illustration, there is shown an earcup suspension system indicated generally by the reference character mounted upon a helmet shell 11. A relatively rigid earcup 12 has an open side 13 adapted to engage the face of the user and a closed side 14. Centerably disposed on the closed side is a socket 15 formed from the material of the earcup in which a ball 16 is mounted to provide universal movement for the earcup. A retainer 17 overlies the ball 16 to hold it in the socket 15, and the retainer is attached to the earcup by suitable rivets l8.
In the form of the device chosen for illustrative purposes, the ball 16 is mounted on the end of a stud 19, and the stud in turn is retained within a bore 20 of a threaded shaft 21. More particularly thereare provided notches 22 in the threaded shaft for retention by a spring clip 23. The threaded shaft 21 threadably engages a threaded sleeve 25 which is part of an adjusting For mounting the parts just described in position on the helmet shell, use is made of an arrangement which 'may be appropriately referred to as alocking assembly consisting of a locking collar on the outside of the shell, a flange 31 on the inside, and an exteriorly threaded skirt 32. Awasher 33 lies between the flange 31 and the inside surface 34 of the-shell. For appropriately positioning the stud there is provided a shaft retainer plate 35 which is attached to the flange 31 by means of rivet 36. The threaded shaft 21 extends through a hole 37 in the shaft retainer plate 35. A lock finger 38 protrudes into a pocket 39 to prevent rotation of the flange and its threaded skirt when the locking collar is rotatably engaged .with the threads 40.
v A retaining ring 41 sitting in. an appropriate recess in the threaded sleeve 25holds the threaded sleeve and, accordingly, the adjustable knob in place within a central aperture 42 in the threaded skirt32. A snap ring 43 which overrides a washer 44 serves to prevent the locking collar 30 from being rotated to engage with the adjusting knob 26. The washer 44-is used for accommodation of the mechanism to various sizes of helmet shells.
To complete the assembly there is provided a foam pad 45 of appreciable thickness which separates the earcup 12 from the inside surface of the shell 11. A central hole 46 in the foam pad 45 accommodates appropriate portions of the locking assembly, and a counter sink 47 is adapted to receive the flange 31 and washer 33 so that they are flush with the outside surface 48 of the foam pad in the fully retracted position.
In operation with the locking collar loosened and the adjusting knob rotated to a withdrawn position for the earcup 12, the helmet is donned and the earcup placed over the ear. Tilting is allowed for by reason of the employment of the ball and socket joint. When the earcup is not in proper position with respect to the ear itself, the locking assembly, and hence the earcup l2 and the foam pad as well, can be moved about because of there being provided an opening 50 in the helmet shell 11 which is substantially greater in diameter than the outside diameter of the threaded skirt 32 which extends through it when the earcup has thus been shifted to a desired position. The locking collar 30 is then rotated with respect to the threads 40, and the locking assembly exemplified by the flange 31 is drawn against the inside surface of the shell as the locking collar is screwed down against the outside surface, thereby to fasten the locking assembly to the shell and, accordingly, fix the position of the earcup.
Since normally the earcup would be withdrawn away from the head of the wearer to its farthest position during this initial adjustment, the earcup then can be moved toward the head of the wearer until a rim 51 of the earcup bears against the wearers face by rotation of the adjusting knob 26. As the knob is rotated, the threads on the threaded sleeve 25 engage the threaded shaft 21, and by rotation in the proper direction the threaded shaft 21, the stud 19, and therefore also the ball and socket joint are moved in a direction from left to right, as viewed in HO. 1, which serves to move the ,carcup in a corresponding direction towards the face of toward the rear of the helmet will retract the earcups toward the helmet shell.
Having described the invention, what is claimed as new in support of Letters Patent is:
l 1. An adjustable earcup suspension for mounting on a protective helmet shell comprising an earcup having one joint member of a universal joint disposed therein, a threaded stud including the other joint member of said joint, fastening means holding said joint members in operating association, said shell having a clearance recess in axial alignment with said earcup, a locking assembly having one element overlying the interior of the shell, a connecting section of cross-sectional size smaller than said recess extending through said recess and another element of said assembly overlying the exterior of the shell in adjustable engagement with said connecting section for adjustably fixing the position of the earcup relative to the center of the recess, an adjusting knob rotatably mounted on the exterior of the locking assembly and a threaded connection between the adjusting knob and said supporting stud whereby to adjustably shift the location of said'earcup alternatively a 4 away from or toward the shell.
2. An adjustable earcup suspension as in claim 1 wherein there is a resilient pad between the earcup and the interior of the shell, I
3. An adjustable earcup suspension as in claim 1 wherein the universal joint is a ball and socket joint having a ball member of said joint mounted on said threaded stud.
4. An adjustable earcup suspension as in claim 1 wherein said other element of the locking assembly is a lockingcollar and there is a threaded engagement between said locking collar and the connecting section of said locking assembly.
5. An adjustable earcup suspension as in claim 1 wherein said earcup, said universal joint, said locking assembly and said adjusting knob are concentrically disposed on said shell.
6. An adjustable earcup suspension as in claim 1 wherein the adjusting knob is smaller in size than the lock collar whereby to enable relative independent adjustment of the earcup in directions laterally of and toward and away from said shell.
7. An adjustable earcup suspension as in claim 4 wherein there is a lock finger on said one element of the locking assembly in anchored engagement with the shell whereby to secure said one element against rotation by said locking collar.

Claims (7)

1. An adjustable earcup suspension for mounting on a protective helmet shell comprising an earcup having one joint member of a universal joint disposed therein, a threaded stud including the other joint member of said joint, fastening means holding said joint members in operating association, said shell having a clearance recess in axial alignment with said earcup, a locking assembly having one element overlying the interior of the shell, a connecting section of cross-sectional size smaller than said recess extending through said recess and another element of said assembly overlying the exterior of the shell in adjustable engagement with said connecting section for adjustably fixing the position of the earcup relative to the center of the recess, an adjusting knob rotatably mounted on the exterior of the locking assembly and a threaded connection between the adjusting knob and said supporting stud whereby to adjustably shift the location of said earcup alternatively away from or toward the shell.
2. An adjustable earcup suspension as in claim 1 wherein there is a resilient pad between the earcup and the interior of the shell.
3. An adjustable earcup suspension as in claim 1 wherein the universal joint is a ball and socket joint having a ball member of said joint mounted on said threaded stud.
4. An adjustable earcup suspension as in claim 1 wherein said other element of the locking assembly is a locking collar and there is a threaded engagement between said locking collar and the connecting section of said locking assembly.
5. An adjustable earcup suspension as in claim 1 wherein said earcup, said universal joint, said locking assembly and said adjusting knob are concentrically disposed on said shell.
6. An adjustable earcup suspension as in claim 1 wherein the adjusting knob is smaller in size than the lock collar whereby to enable relative independent adjustment of the earcup in directions laterally of and toward and away from said shell.
7. An adjustable earcup suspension as in claim 4 wherein there is a lock finger on said one element of the locking assembly in anchored engagement with the shell whereby to secure said one element against rotation by said locking collar.
US543132*A 1975-01-22 1975-01-22 Threaded earcup suspension system Expired - Lifetime US3918098A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471496A (en) * 1983-06-27 1984-09-18 Cabot Corporation Articulated earmuff-to-headband attachment construction
DE3722465A1 (en) * 1986-07-10 1988-01-14 Gentex Corp PROTECTIVE HELMET
FR2695302A1 (en) * 1992-09-08 1994-03-11 Bolle G R M Ets Ear muff with pads sliding on joining strip - having each pad mounted on spherical ball and its position adjusted inwards by button connected to screw and through ball
FR2746602A1 (en) * 1996-04-02 1997-10-03 Zedel PROTECTIVE HELMET WITH POSITIONING BUTTONS ADJUSTABLE TO THE HEADSET
FR2792175A1 (en) * 1999-04-13 2000-10-20 Sextant Avionique Aircraft pilot helmet sound quality adjuster having sound enclosure with rod held plate and rear grip mechanism allowing relative outer wall/plate position.
US20130133128A1 (en) * 2011-11-29 2013-05-30 Steven A. Hein Motorsports helmet with noise reduction elements
US20160095376A1 (en) * 2014-10-07 2016-04-07 Light Speed Aviation, Inc. Helmet with externally positionable internal ear cups
US20170019724A1 (en) * 2015-07-16 2017-01-19 Voyetra Turtle Beach, Inc. Headset with internal gimbal
USD790506S1 (en) * 2014-07-02 2017-06-27 Sonetics Holdings, Inc. Communication headset
US20190101359A1 (en) * 2017-10-04 2019-04-04 Trent Zimmer Ballistic helmet that may include an adapter for each earcup secured thereto and an integrated electronic circuit configured to power and operate conductively connected electronic devices
US20200178638A1 (en) * 2017-06-16 2020-06-11 Efem Acoustics, Llc Protective helmet with earpieces

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2858544A (en) * 1956-05-04 1958-11-04 Mine Safety Appliances Co Noise attenuating device
US3148376A (en) * 1962-01-05 1964-09-15 Leonard P Frieder Support for head engaging device
US3864756A (en) * 1972-12-18 1975-02-11 Us Navy Adjustable earmuffs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2858544A (en) * 1956-05-04 1958-11-04 Mine Safety Appliances Co Noise attenuating device
US3148376A (en) * 1962-01-05 1964-09-15 Leonard P Frieder Support for head engaging device
US3864756A (en) * 1972-12-18 1975-02-11 Us Navy Adjustable earmuffs

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471496A (en) * 1983-06-27 1984-09-18 Cabot Corporation Articulated earmuff-to-headband attachment construction
DE3722465A1 (en) * 1986-07-10 1988-01-14 Gentex Corp PROTECTIVE HELMET
FR2695302A1 (en) * 1992-09-08 1994-03-11 Bolle G R M Ets Ear muff with pads sliding on joining strip - having each pad mounted on spherical ball and its position adjusted inwards by button connected to screw and through ball
FR2746602A1 (en) * 1996-04-02 1997-10-03 Zedel PROTECTIVE HELMET WITH POSITIONING BUTTONS ADJUSTABLE TO THE HEADSET
EP0799581A1 (en) * 1996-04-02 1997-10-08 Zedel Protective helmet with positioning members adjustable to head size
US5765234A (en) * 1996-04-02 1998-06-16 Zedel Protective helmet with positioning knobs adjustable to the head size
FR2792175A1 (en) * 1999-04-13 2000-10-20 Sextant Avionique Aircraft pilot helmet sound quality adjuster having sound enclosure with rod held plate and rear grip mechanism allowing relative outer wall/plate position.
US20130133128A1 (en) * 2011-11-29 2013-05-30 Steven A. Hein Motorsports helmet with noise reduction elements
US8931118B2 (en) * 2011-11-29 2015-01-13 Steven A. Hein Motorsports helmet with noise reduction elements
US20150107936A1 (en) * 2011-11-29 2015-04-23 Steven A. Hein Motorsports helmet with noise reduction elements
US9788590B2 (en) * 2011-11-29 2017-10-17 Steven A. Hein Noise reduction elements
USD790506S1 (en) * 2014-07-02 2017-06-27 Sonetics Holdings, Inc. Communication headset
US20160095376A1 (en) * 2014-10-07 2016-04-07 Light Speed Aviation, Inc. Helmet with externally positionable internal ear cups
US10104929B2 (en) * 2014-10-07 2018-10-23 Light Speed Aviation, Inc. Helmet with externally positionable internal ear cups
US20170019724A1 (en) * 2015-07-16 2017-01-19 Voyetra Turtle Beach, Inc. Headset with internal gimbal
US10667029B2 (en) * 2015-07-16 2020-05-26 Voyetra Turtle Beach, Inc. Headset with internal gimbal
US20200178638A1 (en) * 2017-06-16 2020-06-11 Efem Acoustics, Llc Protective helmet with earpieces
US20190101359A1 (en) * 2017-10-04 2019-04-04 Trent Zimmer Ballistic helmet that may include an adapter for each earcup secured thereto and an integrated electronic circuit configured to power and operate conductively connected electronic devices
US10928163B2 (en) * 2017-10-04 2021-02-23 Trent Zimmer Ballistic helmet
US20210293513A1 (en) * 2017-10-04 2021-09-23 Trent Zimmer Ballistic helmet having an integrated electronic circuit configured to power and operate conductively connected electronic devices
US11624589B2 (en) * 2017-10-04 2023-04-11 Trent Zimmer Ballistic helmet having an integrated electronic circuit configured to power and operate conductively connected electronic devices

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