US2134084A - Telephone earpiece - Google Patents

Telephone earpiece Download PDF

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Publication number
US2134084A
US2134084A US36915A US3691535A US2134084A US 2134084 A US2134084 A US 2134084A US 36915 A US36915 A US 36915A US 3691535 A US3691535 A US 3691535A US 2134084 A US2134084 A US 2134084A
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US
United States
Prior art keywords
dome
ear
sound
earpiece
ribs
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.)
Expired - Lifetime
Application number
US36915A
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English (en)
Inventor
Hausdorf Erich
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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
Application granted granted Critical
Publication of US2134084A publication Critical patent/US2134084A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to a telephone earpiece, part I in suitable fashion.
  • This portion 2 passes which comprises a cap adapted to be placed over into the dome 3. against the ear and surround the same, and a The domepossesses the sound outlet apertures dome-like portion which contains the electrical 4.
  • the space 50 of 5 apparatus is adapted to engage into the ear.
  • the dome is subdivided by a plurality of ribs 5.
  • the object of the invention is to provide for the particular form of embodiment shown there greater intelligibility and increased intensity of are thus produced four equal compartments.
  • the sound in connection with earpieces of this deribs 5 taper off towards the bottom I of the dome scription. and, as shown in Fig. 3, may be allowed to inter- This is accomplished according to the invention sect.
  • the central point 8 of the intersecting ribs 10 by the fact that the domelike portion is subcoincides with the central axis of the earpiece. divided by ribs which are disposed vertically to Since the ribs 5 are tapered off towards the me base thereof.
  • the surfaces be the portion of the earpiece surrounding the ear tween the ribs are made to be irregular, for exand that engaging into the ear, and which hereample by being hammered or otherwise roughened tofore have been perfectly smooth, are made iror indented, as indicated at Go.
  • the surfaces ador punched, jacent the dome and the inner surfaces of the cap Earpieces are frequently made of resinous or I surrounding the ear will again be irregular, other non-metallic materials which are pressed for example hammered. This treatment of the into form.
  • the cross-section of the thread serving II is the part of the earpiece containing the for connection of the parts and the tensioning of magnet system acting on the diaphragm.
  • This the diaphragm is made in the form of a rightpart ll,as shown in Figs. 1 and 2, is secured to the 40 angled triangle, the hypotenuse of which is dipart 2 by means of a thread.
  • the part 2 possesses rected towards the diaphragm. an annulus l0. Between the end of the casing II
  • the invention is illustrated by way of example and the annulus l0 there is tensioned the diain the accompanying drawing, in which phragm 9.
  • FIG. 1 is a longitudinal section through an earthe parts is illustrated on enlarged scale in Fig. 2. 45 piece according to the invention. As shown in the drawing, the cross-section of the Fig. 2 shows a portion of the earpiece accordthread constitutes a right-angled triangle, the ing to Fig. 1 on enlarged scale. This figure illushypotenuse I2 of which is directed towards the trates more particularly the thread employed for diaphragm, resulting in the advantages previousconnecting the parts. 1y referred to. 50
  • Fig. 3 is a front view of the earpiece according What I claim as new and desire to secure by to Fig. 1. Letters Patent is:
  • Atelephone earpiece comprisingincombinawhich is adapted to be placed against the ear. tion, a cap adapted to fit against the ear and sur-
  • the part 2 of the earpiece is connected with the round the same, a dome-like portion adapted to 66 engage into the ear, and ribs in the said domelike portion disposed angularly to the base of the dome and dividing the said dome-like portion into single compartments, all of said compartments converging toward the sound outlets whereby the sound is intensified at these outlets.
  • a telephone earpiece comprising in conibination, a cap adapted to fit against the ear and surround the same, a dome-like portion adapted to engage into the ear, and radially disposed ribs in the said dome-like portion dividing it into single compartments, all of said compartments converging toward the sound outlets whereby the sound is intensified at these outlets.
  • a telephone earpiece comprising in combination, a cap adapted to fit against the ear and surround the same, a dome-like portion adapted to engage into the ear, and intersecting ribs in the dome-like portion dividing it into single compartments, all of said compartments converging toward the sound outlets whereby the sound is intensified at these outlets.
  • a telephone earpiece comprising in combination, a cap adapted to fit against the ear and surround the same, a dome-like portion adapted toengage into the ear and ribs in the said domelike portion dividing it into single compartments and terminating in sound outlets in the wall of the dome, all of said compartments converging toward the sound outlets whereby the sound is intensified at these outlets.
  • a telephone earpiece adapted to fit against the ear and surround the same, a dome-like portion adapted to engage into the ear, ribs in the said dome-like portion dividing it into single compartments, and ribs in the space between the said cap and the said dome-like portion all of said compartments converging toward the sound outlets whereby the sound is intensified at these outlets.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
US36915A 1935-04-09 1935-08-19 Telephone earpiece Expired - Lifetime US2134084A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2134084X 1935-04-09

Publications (1)

Publication Number Publication Date
US2134084A true US2134084A (en) 1938-10-25

Family

ID=7986540

Family Applications (1)

Application Number Title Priority Date Filing Date
US36915A Expired - Lifetime US2134084A (en) 1935-04-09 1935-08-19 Telephone earpiece

Country Status (4)

Country Link
US (1) US2134084A (fr)
BE (1) BE410671A (fr)
CH (1) CH190273A (fr)
FR (1) FR793231A (fr)

Also Published As

Publication number Publication date
CH190273A (de) 1937-04-15
FR793231A (fr) 1936-01-20
BE410671A (fr)

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