GB2320885A - Rigid polyurethane ear-muff's cup - Google Patents

Rigid polyurethane ear-muff's cup Download PDF

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Publication number
GB2320885A
GB2320885A GB9627042A GB9627042A GB2320885A GB 2320885 A GB2320885 A GB 2320885A GB 9627042 A GB9627042 A GB 9627042A GB 9627042 A GB9627042 A GB 9627042A GB 2320885 A GB2320885 A GB 2320885A
Authority
GB
United Kingdom
Prior art keywords
cup
ear
rigid polyurethane
polyurethane foam
insert
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB9627042A
Other versions
GB9627042D0 (en
GB2320885B (en
Inventor
Parimal Parikh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB9627042A priority Critical patent/GB2320885B/en
Publication of GB9627042D0 publication Critical patent/GB9627042D0/en
Publication of GB2320885A publication Critical patent/GB2320885A/en
Application granted granted Critical
Publication of GB2320885B publication Critical patent/GB2320885B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1008—Earpieces of the supra-aural or circum-aural type
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1058—Manufacture or assembly
    • H04R1/1066—Constructional aspects of the interconnection between earpiece and earpiece support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1083—Reduction of ambient noise

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Psychology (AREA)
  • Otolaryngology (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Signal Processing (AREA)
  • Corsets Or Brassieres (AREA)

Abstract

The Rigid polyurethane foam cup, for Ear Muff's cup A which is made with typical insert B by which it can be fitted to Ear Muff head band C, so that universal movement is obtained to fit the cup with insert securely to get optimum sound attenuation. The cup A can be made with insert B either on top or at the side in order to have the universal movement of cup and solid one piece construction. The cups are of cellular structure having large surface area but very light in weight which results in optimum sound barrier as well as comfort due to light weight/low overall pressure.

Description

RIGID POL YURETHANE FOAM EAR-MUFF'S CUP TECHNICAL FIELD This invention relates to the idea of using rigid polyurethane foam to make Ear-Muffs Cups.
BACKGROUND Ear-Muff's Cups are generally made of plastics. The Ear Muff consists of a Head-Band, to which, at both ends, a cup is attached. Over the cups, two soft cushion pads are provided for adequate fitting purpose. It also provides ear protection in noise polluted areas, at the same time making it possible to communicate when equipped with a radio microphone.
ESSENTIAL TECHNICAL FEATURES According to the present invention, the IDEA IS TO USE RIGID POLYURETHANE FOAM material to make various sizes & shapes of Ear Muff Cup. Unlike plastics,[ ABS , HDPE , PP , ETC ] we can achieve better sound attenuation & as this material is light in weight, the product becomes light weight resulting in overall low pressure which gives optimum protection and comfort to the users of the product.
EXAMPLE Specific parts of the invention will now be described by way of example with reference to the accompanying drawing in which:-- Figure 1 shows in perspective, the complete Ear Muff with top & side mounting and various typical insert attachments.
Figure 2 shows the Ear Muff's cup complete [for which the use of RIGID POLYURETHANE FOAM material example is explained.] Figures 3 [a] [b] [cl [dl show that there can be various shapes & sizes of CUP as per requirement e.g. for noise affected work areas or for two way communication purpose etc.
Referring to the drawing, the Ear Muff is made of a head band C to which at both ends the cup A is typically attached by insert B, and on the cup soft cushioned pads D are mounted. This is a complete Ear Muff as shown in figure 1 , The Ear Muff can be of either top mounting type or side mounting type.
Figure 2 shows the Ear Muffs Cup A in enlarged form. The cellular foam structure & typical insert B.
Figure 3 shows different sizes & shapes of Ear Muff's Cup used commonly, illustrates wide drawings [a] [b] [c] [d] .They can be attached with a head band by typical insert either on top or at the two sides as per their respective requirement with top mounted type or side mounted type of Ear Muff.

Claims (5)

1 The Rigid polyurethane foam material to make Ear Muff's cup. The Idea of using this material in Ear Muffs cup. Ear Muff comprises of head band, cup with typical insert by which they are connected to head band & ear pad [Soft cushioned ear pads ] mounted on cup.
2 The Rigid polyurethane foam cup claimed in Claim 1 wherein cup means various sizes & shapes of cup with typical insert as required in Ear protector in noise polluted area or Ear Muff for communication in work area or remote areas.
3 The Rigid polyurethane foam cup claimed in Claim 1 or Claim 2 , wherein the various typical inserts means a suitable type stud used as insert in cup, making the cup to be fitted with head band & to wearer in universal position.
4 The Rigid polyurethane foam cup claimed in Claim 2 or Claim 3 , wherein the inserts provided either at the top or at the side for top mounting type or for the side mounting type respectively.
5 The Rigid polyurethane foam cup substantially as described here in with reference to figure 1 2 3 [a] lb] [c] [d] of accompanying drawings.
GB9627042A 1996-12-30 1996-12-30 Rigid polyurethane foam ear-muff's cup Expired - Fee Related GB2320885B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9627042A GB2320885B (en) 1996-12-30 1996-12-30 Rigid polyurethane foam ear-muff's cup

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9627042A GB2320885B (en) 1996-12-30 1996-12-30 Rigid polyurethane foam ear-muff's cup

Publications (3)

Publication Number Publication Date
GB9627042D0 GB9627042D0 (en) 1997-02-19
GB2320885A true GB2320885A (en) 1998-07-08
GB2320885B GB2320885B (en) 2001-08-22

Family

ID=10805104

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9627042A Expired - Fee Related GB2320885B (en) 1996-12-30 1996-12-30 Rigid polyurethane foam ear-muff's cup

Country Status (1)

Country Link
GB (1) GB2320885B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7650649B2 (en) 2003-08-12 2010-01-26 180S, Inc. Ear warmer having an external frame
US7717226B2 (en) 2008-02-20 2010-05-18 Kimberly-Clark Worldwide, Inc. Hearing protection cap
US7962970B2 (en) 2003-08-12 2011-06-21 180S, Inc. Ear warmer having a curved ear portion
US7996923B2 (en) 2002-01-28 2011-08-16 180S, Inc. Apparatus and method for making an ear warmer and an ear warmer frame

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6332223B1 (en) 2000-04-05 2001-12-25 Gray Matter Holdings, Llc Apparatus and method for making an ear warmer having interior seams
AU2002230957A1 (en) 2000-12-29 2002-07-16 Gray Matter Holdings, Llc Ear protection device
US7212645B2 (en) 2003-08-12 2007-05-01 180S, Inc. Ear warmer with a speaker system
US8443466B2 (en) 2007-01-22 2013-05-21 180S, Inc. Ear protection device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0338463A1 (en) * 1988-04-18 1989-10-25 Gentex Corporation Energy-absorbing earcup assembly
WO1994024185A1 (en) * 1993-04-19 1994-10-27 Cabot Safety Corporation Acoustical earmuff

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0338463A1 (en) * 1988-04-18 1989-10-25 Gentex Corporation Energy-absorbing earcup assembly
WO1994024185A1 (en) * 1993-04-19 1994-10-27 Cabot Safety Corporation Acoustical earmuff

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7996923B2 (en) 2002-01-28 2011-08-16 180S, Inc. Apparatus and method for making an ear warmer and an ear warmer frame
US7650649B2 (en) 2003-08-12 2010-01-26 180S, Inc. Ear warmer having an external frame
US7962970B2 (en) 2003-08-12 2011-06-21 180S, Inc. Ear warmer having a curved ear portion
US10111781B2 (en) 2003-08-12 2018-10-30 180S, Inc. Ear warmer with a substantially continuous surface
US7717226B2 (en) 2008-02-20 2010-05-18 Kimberly-Clark Worldwide, Inc. Hearing protection cap

Also Published As

Publication number Publication date
GB9627042D0 (en) 1997-02-19
GB2320885B (en) 2001-08-22

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20061230