USD249509S - Acoustical transformer for coupling sound waves from the diaphragm to the throat of a horn-type loudspeaker - Google Patents

Acoustical transformer for coupling sound waves from the diaphragm to the throat of a horn-type loudspeaker Download PDF

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Publication number
USD249509S
USD249509S US05/725,981 US72598176F USD249509S US D249509 S USD249509 S US D249509S US 72598176 F US72598176 F US 72598176F US D249509 S USD249509 S US D249509S
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United States
Prior art keywords
throat
horn
diaphragm
sound waves
type loudspeaker
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
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US05/725,981
Inventor
Clifford A. Henricksen
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.)
Altec Lansing Corp
Original Assignee
Altec Corp
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.)
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Publication date
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Priority to US05/725,981 priority Critical patent/USD249509S/en
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Publication of USD249509S publication Critical patent/USD249509S/en
Assigned to ALTEC LANSING CORPORATION, 101 COLLEGE ROAD, EAST, PRINCETON, NEW JERSEY, 08540, A CORP OF DE. reassignment ALTEC LANSING CORPORATION, 101 COLLEGE ROAD, EAST, PRINCETON, NEW JERSEY, 08540, A CORP OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ALTEC CORPORATION
Assigned to MARINE MIDLAND BANK, N.A. reassignment MARINE MIDLAND BANK, N.A. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ALTEC LANSING CORPORATION
Assigned to ALTEC LANSING CORPORATION reassignment ALTEC LANSING CORPORATION RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: MARINE MIDLAND BANK, N.A., AS AGENT
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

FIG. 1 is a top plan view of the accoustical transformer for coupling sound waves from the diaphragm to the throat of a horn-type loudspeaker showing my new design;
FIG. 2 is a bottom plan view thereof;
FIG. 3 is a side elevational view thereof;
FIG. 4 is a side elevational perspective view thereof; and
FIG. 5 is a side elevational perspective view thereof taken from the side opposite to that shown in FIG. 4.

Claims (1)

  1. The ornamental design for a accoustical transformer for coupling sound waves from the diaphragm to the throat of a horn-type loudspeaker, as shown.
US05/725,981 1976-09-23 1976-09-23 Acoustical transformer for coupling sound waves from the diaphragm to the throat of a horn-type loudspeaker Expired - Lifetime USD249509S (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/725,981 USD249509S (en) 1976-09-23 1976-09-23 Acoustical transformer for coupling sound waves from the diaphragm to the throat of a horn-type loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/725,981 USD249509S (en) 1976-09-23 1976-09-23 Acoustical transformer for coupling sound waves from the diaphragm to the throat of a horn-type loudspeaker

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USD249509S true USD249509S (en) 1978-09-19

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US05/725,981 Expired - Lifetime USD249509S (en) 1976-09-23 1976-09-23 Acoustical transformer for coupling sound waves from the diaphragm to the throat of a horn-type loudspeaker

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110168480A1 (en) * 2008-08-14 2011-07-14 Harman International Industries, Incorporated Phase plug and acoustic lens for direct radiating loudspeaker
USD835076S1 (en) * 2016-11-01 2018-12-04 Safariland, Llc Speaker and microphone housing
USD852169S1 (en) * 2017-07-21 2019-06-25 Premium Loudspeakers (Hui Zhou) Co., Ltd. Phase plug for loudspeaker
USD856981S1 (en) * 2016-09-23 2019-08-20 Tymphany Hk Limited Waveguide for a loudspeaker
USD866525S1 (en) * 2017-12-06 2019-11-12 Tymphany Acoustic Technology (Huizhou) Co., Ltd. Phase plug for loudspeaker

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110168480A1 (en) * 2008-08-14 2011-07-14 Harman International Industries, Incorporated Phase plug and acoustic lens for direct radiating loudspeaker
US8181736B2 (en) 2008-08-14 2012-05-22 Harman International Industries, Incorporated Phase plug and acoustic lens for direct radiating loudspeaker
US8418802B2 (en) 2008-08-14 2013-04-16 Harman International Industries, Incorporated Phase plug and acoustic lens for direct radiating loudspeaker
US8672088B2 (en) 2008-08-14 2014-03-18 Harman International Industries, Inc. Phase plug and acoustic lens for direct radiating loudspeaker
USD856981S1 (en) * 2016-09-23 2019-08-20 Tymphany Hk Limited Waveguide for a loudspeaker
USD835076S1 (en) * 2016-11-01 2018-12-04 Safariland, Llc Speaker and microphone housing
USD852169S1 (en) * 2017-07-21 2019-06-25 Premium Loudspeakers (Hui Zhou) Co., Ltd. Phase plug for loudspeaker
USD866525S1 (en) * 2017-12-06 2019-11-12 Tymphany Acoustic Technology (Huizhou) Co., Ltd. Phase plug for loudspeaker

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