USD753074S1 - Frequency diffuser - Google Patents

Frequency diffuser Download PDF

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Publication number
USD753074S1
USD753074S1 US29/488,510 US201429488510F USD753074S US D753074 S1 USD753074 S1 US D753074S1 US 201429488510 F US201429488510 F US 201429488510F US D753074 S USD753074 S US D753074S
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United States
Prior art keywords
frequency diffuser
diffuser
frequency
view
ornamental design
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.)
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US29/488,510
Inventor
Dennis Kliegle
Gary Gotlieb Unterschuetz
David C. Weber
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Individual
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Individual
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Priority to US29/488,510 priority Critical patent/USD753074S1/en
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Publication of USD753074S1 publication Critical patent/USD753074S1/en
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Description

FIG. 1 is a front perspective view of a frequency diffuser showing our new design.
FIG. 2 is a back perspective view thereof.
FIG. 3 is a top view thereof.
FIG. 4 is a front view thereof.
FIG. 5 is a side view thereof; and,
FIG. 6 is a back view thereof.
The design is for a Quadratic Residue Diffuser (QRD) acoustic diffuser which is used to control reflection of sound in a listening environment.

Claims (1)

    CLAIM
  1. The ornamental design for a frequency diffuser, as shown and described.
US29/488,510 2014-04-21 2014-04-21 Frequency diffuser Active USD753074S1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US29/488,510 USD753074S1 (en) 2014-04-21 2014-04-21 Frequency diffuser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29/488,510 USD753074S1 (en) 2014-04-21 2014-04-21 Frequency diffuser

Publications (1)

Publication Number Publication Date
USD753074S1 true USD753074S1 (en) 2016-04-05

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ID=55589407

Family Applications (1)

Application Number Title Priority Date Filing Date
US29/488,510 Active USD753074S1 (en) 2014-04-21 2014-04-21 Frequency diffuser

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US (1) USD753074S1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD793977S1 (en) * 2015-02-23 2017-08-08 Omni Lps. Co., Ltd. DC electric power noise cutoff device for electric anticorrosion apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD317909S (en) * 1989-07-07 1991-07-02 Kitagawa Industries Co., Ltd. Absorber of electric noise
USD403301S (en) * 1996-02-08 1998-12-29 Danfoss A/S Box for a frequency converter
USD443842S1 (en) * 1999-03-01 2001-06-19 Citizen Electronics Co., Ltd Electro-magnetic sound generator
USD471172S1 (en) * 2001-07-13 2003-03-04 Richard P Greenway High frequency transmitter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD317909S (en) * 1989-07-07 1991-07-02 Kitagawa Industries Co., Ltd. Absorber of electric noise
USD403301S (en) * 1996-02-08 1998-12-29 Danfoss A/S Box for a frequency converter
USD443842S1 (en) * 1999-03-01 2001-06-19 Citizen Electronics Co., Ltd Electro-magnetic sound generator
USD471172S1 (en) * 2001-07-13 2003-03-04 Richard P Greenway High frequency transmitter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD793977S1 (en) * 2015-02-23 2017-08-08 Omni Lps. Co., Ltd. DC electric power noise cutoff device for electric anticorrosion apparatus

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