US1148849A - Ear-protector. - Google Patents

Ear-protector. Download PDF

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Publication number
US1148849A
US1148849A US789315A US789315A US1148849A US 1148849 A US1148849 A US 1148849A US 789315 A US789315 A US 789315A US 789315 A US789315 A US 789315A US 1148849 A US1148849 A US 1148849A
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United States
Prior art keywords
ear
protector
unit
membrane
diaphragm
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Expired - Lifetime
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US789315A
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Arnulph Mallock
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Individual
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Priority to US789315A priority Critical patent/US1148849A/en
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    • 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
    • A61F11/08—Protective devices for the ears internal, e.g. earplugs
    • 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
    • A61F11/08—Protective devices for the ears internal, e.g. earplugs
    • A61F11/085—Protective devices for the ears internal, e.g. earplugs including an inner channel

Definitions

  • This invention relates to appliances which are intended to protect the car from acoustic shocks, such as occasioned by explosions, and in which one or more vibratory membranes of gold-beaters skin, or other suitable thin material, are arranged between stop plates of wire gauze and clamped in position by suitable means, thus forming a diaphragm barrier which allows of the transmission of ordinary vibrations while stopping such as are excessive.
  • the component parts of the diaphragm being small and of fragile material are very easily damaged in assembling when handled by the ordinary workmen.
  • the several component parts of the diaphragm are formed as one unit, so that it can be readily handled and inserted in the body or holder of the ear protector.
  • the drawing shows a section of an ear protector constructed according to this invention.
  • celluloid guard ring 2 is the body or holder of the ear protec tor into one end of which has been inserted the diaphragm composed of the following elements :celluloid guard ring 2, wire gauze disk 3, thin celluloid separating ring 4, membrane 5, thin celluloid separating ring 6, wire guaze disk 7, celluloid guard ring 8, which before insertion into the holder have been superimposed and secured together by a celluloid solvent, such as acetone, in a press thus forming a unit.
  • a celluloid solvent such as acetone
  • the spacing of the disks 3 and 7 is designed to allow the membrane 5 to respond to the VEll'litl/ib is of air pressure due to conversation or other ordinary sounds without touching the disks while in responding to pressure variations largely in excess of Specification of Letters Patent.
  • the vibrations of the membrane are arrested by the disks whereby the possible variation of air pressure within the ear cavity is limited and consequently the tympanum of the ear is protected against excessive variations of pressure.
  • the press employed is so constructed that the pressure exerted to secure the parts together does not expand them as the side of the unit is supported and thus it is preserved strictly to gage in its diameter, with the result that it is quite simple to insert them into the chamber or cavity 9 of the holder 1 while to effectively retain the unit in the cavity 9 the latter has its side wall expanded toward the rear of the opening as shown at 10 by a slight undercutting so that when pressure is exerted on the unit to force it into place it is at once securely held without any other retaining devices.
  • An ear protector having a diaphragm composed of elements including a membrane, devices on eith r side for limiting the movement of the embrane, and separating devices, such membrane, limiting devices, and separating devices being secured together so that they may be handled as a unit.
  • An ear protector having a compound diaphragm formed as a unit consisting of a membrane a separating ring on each side of same, a wire gauze disk on the outside of each separating ring and a guard ring on the outside of each disk all the parts being cemented together.
  • An ear protector comprising a chambered holder, the chamber having its sides undercut at the rear, and a compound diaphragm formed as a unit, in such chamber.

Description

A. MALLOCK. EAR PROTECTOR.
APPLICATION FILED FEB. 12.
Patented Aug. 3, 1915.
Jnrenfin W WIT/76556;.
ARNULPH IVIALLOOK, OF LONDON, ENGLAND.
EAR-PROTECTOR.
Application filed February 12, 1915.
To all whom it may concern Be it known that I, ARNULPH MALLooK, a subject of His Majesty the King of Great Britain and Ireland, residing at London, England, have invented a certain new and useful Improvement in Ear-Protectors, of which the following is a specification.
This invention relates to appliances which are intended to protect the car from acoustic shocks, such as occasioned by explosions, and in which one or more vibratory membranes of gold-beaters skin, or other suitable thin material, are arranged between stop plates of wire gauze and clamped in position by suitable means, thus forming a diaphragm barrier which allows of the transmission of ordinary vibrations while stopping such as are excessive.
In practice it has been found that the component parts of the diaphragm being small and of fragile material are very easily damaged in assembling when handled by the ordinary workmen. According to this invention the several component parts of the diaphragm are formed as one unit, so that it can be readily handled and inserted in the body or holder of the ear protector.
The drawing shows a section of an ear protector constructed according to this invention.
1 is the body or holder of the ear protec tor into one end of which has been inserted the diaphragm composed of the following elements :celluloid guard ring 2, wire gauze disk 3, thin celluloid separating ring 4, membrane 5, thin celluloid separating ring 6, wire guaze disk 7, celluloid guard ring 8, which before insertion into the holder have been superimposed and secured together by a celluloid solvent, such as acetone, in a press thus forming a unit.
The spacing of the disks 3 and 7 is designed to allow the membrane 5 to respond to the VEll'litl/ib is of air pressure due to conversation or other ordinary sounds without touching the disks while in responding to pressure variations largely in excess of Specification of Letters Patent.
Patented Aug. 3, 1915.
Serial No. 7,893.
these, the vibrations of the membrane are arrested by the disks whereby the possible variation of air pressure within the ear cavity is limited and consequently the tympanum of the ear is protected against excessive variations of pressure.
The press employed is so constructed that the pressure exerted to secure the parts together does not expand them as the side of the unit is supported and thus it is preserved strictly to gage in its diameter, with the result that it is quite simple to insert them into the chamber or cavity 9 of the holder 1 while to effectively retain the unit in the cavity 9 the latter has its side wall expanded toward the rear of the opening as shown at 10 by a slight undercutting so that when pressure is exerted on the unit to force it into place it is at once securely held without any other retaining devices.
What I claim is 1. An ear protector having a diaphragm composed of elements including a membrane, devices on eith r side for limiting the movement of the embrane, and separating devices, such membrane, limiting devices, and separating devices being secured together so that they may be handled as a unit.
2. An ear protector having a compound diaphragm formed as a unit consisting of a membrane a separating ring on each side of same, a wire gauze disk on the outside of each separating ring and a guard ring on the outside of each disk all the parts being cemented together.
3. An ear protector comprising a chambered holder, the chamber having its sides undercut at the rear, and a compound diaphragm formed as a unit, in such chamber.
In witness whereof I have hereunto set my hand in the presence of two subscribing witnesses.
ARNULPH MALLOCK. "Witnesses:
- ALLEN PARRY JONES,
EDWARD TRUMP FOSTER.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, I). C.
US789315A 1915-02-12 1915-02-12 Ear-protector. Expired - Lifetime US1148849A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US789315A US1148849A (en) 1915-02-12 1915-02-12 Ear-protector.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US789315A US1148849A (en) 1915-02-12 1915-02-12 Ear-protector.

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US1148849A true US1148849A (en) 1915-08-03

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2672864A (en) * 1951-07-18 1954-03-23 Makara Frank Audio mask
US2849533A (en) * 1951-12-12 1958-08-26 Dictaphone Corp Headphone device
US3916873A (en) * 1973-11-30 1975-11-04 Eric I Wasserman Valve for tympanic membrane ear surgery
US4807612A (en) * 1987-11-09 1989-02-28 Industrial Research Products, Inc. Passive ear protector
US5153387A (en) * 1990-12-31 1992-10-06 Syracuse University Layered earplug
US20030159878A1 (en) * 2000-04-06 2003-08-28 Jorgen Hakansson Earplug
US20070125590A1 (en) * 2005-12-07 2007-06-07 Phonak Ag Hearing protection device with acoustic filter element and method for manufacturing the same
EP2515810B1 (en) 2009-12-22 2017-04-26 Dynamic Ear Company B.V. Ear protector with a sound damping filter, sound damping filter for such an ear protector as well as method for manufacturing a sound damping filter for such an ear protector
US10271993B2 (en) 2006-01-10 2019-04-30 President And Fellows Of Harvard College Nano-otologic protective equipment for impact noise toxicity and/or blast overpressure exposure

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2672864A (en) * 1951-07-18 1954-03-23 Makara Frank Audio mask
US2849533A (en) * 1951-12-12 1958-08-26 Dictaphone Corp Headphone device
US3916873A (en) * 1973-11-30 1975-11-04 Eric I Wasserman Valve for tympanic membrane ear surgery
US4807612A (en) * 1987-11-09 1989-02-28 Industrial Research Products, Inc. Passive ear protector
US5153387A (en) * 1990-12-31 1992-10-06 Syracuse University Layered earplug
US20030159878A1 (en) * 2000-04-06 2003-08-28 Jorgen Hakansson Earplug
US20070125590A1 (en) * 2005-12-07 2007-06-07 Phonak Ag Hearing protection device with acoustic filter element and method for manufacturing the same
US10271993B2 (en) 2006-01-10 2019-04-30 President And Fellows Of Harvard College Nano-otologic protective equipment for impact noise toxicity and/or blast overpressure exposure
EP2515810B1 (en) 2009-12-22 2017-04-26 Dynamic Ear Company B.V. Ear protector with a sound damping filter, sound damping filter for such an ear protector as well as method for manufacturing a sound damping filter for such an ear protector
EP3195839B1 (en) 2009-12-22 2022-04-06 Sonova AG Ear protector with a sound damping filter, sound damping filter for such an ear protector

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