US1896053A - Sound suppressing ventilator - Google Patents

Sound suppressing ventilator Download PDF

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Publication number
US1896053A
US1896053A US437177A US43717730A US1896053A US 1896053 A US1896053 A US 1896053A US 437177 A US437177 A US 437177A US 43717730 A US43717730 A US 43717730A US 1896053 A US1896053 A US 1896053A
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United States
Prior art keywords
chamber
ventilator
sound
ventilating
sound suppressing
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Expired - Lifetime
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US437177A
Inventor
Fisk Ernest Thomas
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Individual
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B1/86—Sound-absorbing elements slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8428—Tray or frame type panels or blocks, with or without acoustical filling containing specially shaped acoustical bodies, e.g. funnels, egg-crates, fanfolds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S454/00—Ventilation
    • Y10S454/906—Noise inhibiting means

Definitions

  • This invention relates to means for ventilating a building or any other compartment or chamber intended for human habitation and being enclosed by walls and a roof; the means for ventilating being devised to allow the passage of ventilating currents of air while the energy of sound waves entering the same passage is reduced by absorption or dissipation.
  • the invention consists in its simplest form of a tube or channel open at two ends for inlet and outlet of ventilating air currents, with lateral holes in the sides of such tube or channel (hereinafter called the ventilating channel) opening into a closed chamber (hereinafter called the damping chamber).
  • Fig. 1 shows a ventilator comprising a damping chamber having one laterally perforated channel passing through it.
  • Figs. 2 and 3 show modifications in which a plurality of ventilating channels are fitted in a single damping chamber, which is lined or packed with sound absorbent material.
  • Ventilating air currents being substantially steady currents will flow. through the tubes or channels 11 without loss of energy other than frictional or eddy losses, but sound wave oscillations passing through the same channels 11 will be subject to considerable reduction of energy as a result of the dampening effect of the lateral openings 12.
  • the dampening chamber 10 may be constructed of sound absorbent material; or it may be lined with such material as shown at 16 in Fig. 3, or packed with such material as shown at 13 in Fig. 2.
  • the channels 11 are also preferably lined with sound absorbent material as shown at 15 in Fig. 2, or alternatively they may be constructed Wholly of such material.
  • a plurality of ventilating channels 11 are enclosed in a single damping chamber 10.
  • a plurality of ventilating channels 11 are enclosed in a single damping chamber 10.
  • a ventilator comprising a sound reducing chamber having side walls, an open-ended tube traversing the chamber and having its ends fixed in the side walls of the chamber and with its ends flush with the outer faces of the side walls, said tube having openings formed therein affording communication between the chamber and tube.
  • a ventilator comprising a sound absorbing chamber having side walls, sound absorbent material secured to the inner faces of its walls, open-ended tubes traversing the chamber and having their ends fixed in the walls of the chamber and in the absorption material, the ends of the tubes being flush with the outer faces of the side walls of the chamber, said tubes having openings therein affording communication between the chamber and tubes.

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Description

Jan. 31, 1933. E. T. FISK SOUND SUPPHESSING VENTILATOR Filed March 19, 1950 F/Gl.
Patented Jan. 31, 1933 ERNEST THOMAS FI SK, OF SYDNEY, NEW SOUTH WALES, AUSTRALIA.
SOUND SUPPRESSING VENTILATOR Application filed March 19, 1930, Serial No. 437,177, and in Australia July 27, 1927.
This invention relates to means for ventilating a building or any other compartment or chamber intended for human habitation and being enclosed by walls and a roof; the means for ventilating being devised to allow the passage of ventilating currents of air while the energy of sound waves entering the same passage is reduced by absorption or dissipation.
The invention consists in its simplest form of a tube or channel open at two ends for inlet and outlet of ventilating air currents, with lateral holes in the sides of such tube or channel (hereinafter called the ventilating channel) opening into a closed chamber (hereinafter called the damping chamber).
Fig. 1 shows a ventilator comprising a damping chamber having one laterally perforated channel passing through it.
Figs. 2 and 3 show modifications in which a plurality of ventilating channels are fitted in a single damping chamber, which is lined or packed with sound absorbent material.
Ventilating air currents being substantially steady currents, will flow. through the tubes or channels 11 without loss of energy other than frictional or eddy losses, but sound wave oscillations passing through the same channels 11 will be subject to considerable reduction of energy as a result of the dampening effect of the lateral openings 12.
To intensify the sound dampening effect, the dampening chamber 10 may be constructed of sound absorbent material; or it may be lined with such material as shown at 16 in Fig. 3, or packed with such material as shown at 13 in Fig. 2. The channels 11 are also preferably lined with sound absorbent material as shown at 15 in Fig. 2, or alternatively they may be constructed Wholly of such material.
In one form of the invention a plurality of ventilating channels 11 are enclosed in a single damping chamber 10. In another form,
only one ventilating channel is contained in the damping chamber but a plurality of such units may be assembled and built into a wall aperture to constitute a ventilating screen. The present invention is an improvement on my Patent 1,816,769, issued July 28, 1931,
which patent did not disclose the loosely packed material at 13 as disclosed in Fig. 2 of this application.
What I claim as my invention and desire to secure by Letters Patent is z 1. As a new article of manufacture, a ventilator, comprising a sound reducing chamber having side walls, an open-ended tube traversing the chamber and having its ends fixed in the side walls of the chamber and with its ends flush with the outer faces of the side walls, said tube having openings formed therein affording communication between the chamber and tube.
2. As a new article of manufacture, a ventilator, comprising a sound absorbing chamber having side walls, sound absorbent material secured to the inner faces of its walls, open-ended tubes traversing the chamber and having their ends fixed in the walls of the chamber and in the absorption material, the ends of the tubes being flush with the outer faces of the side walls of the chamber, said tubes having openings therein affording communication between the chamber and tubes.
In testimony whereof I afiix my signature.
ERNEST THOMAS FISK.
US437177A 1927-07-27 1930-03-19 Sound suppressing ventilator Expired - Lifetime US1896053A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU1896053X 1927-07-27

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US1896053A true US1896053A (en) 1933-01-31

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3238944A (en) * 1962-10-08 1966-03-08 Max L Hirschhorn Temperature controlling device for living organs
US8662971B2 (en) 2010-07-01 2014-03-04 Tamarack Technologies, Inc. Door insert for balancing air pressure
US9109389B1 (en) * 2010-11-23 2015-08-18 Jerry G. Crittenden Hollow core door with internal air flow
US10837171B2 (en) * 2016-01-14 2020-11-17 Flex House Srl Spacer element for a disposable formwork for the construction of walls and disposable formwork incorporating the spacer element

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3238944A (en) * 1962-10-08 1966-03-08 Max L Hirschhorn Temperature controlling device for living organs
US8662971B2 (en) 2010-07-01 2014-03-04 Tamarack Technologies, Inc. Door insert for balancing air pressure
US9109389B1 (en) * 2010-11-23 2015-08-18 Jerry G. Crittenden Hollow core door with internal air flow
US10837171B2 (en) * 2016-01-14 2020-11-17 Flex House Srl Spacer element for a disposable formwork for the construction of walls and disposable formwork incorporating the spacer element

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