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Publication numberUS3713508 A
Publication typeGrant
Publication dateJan 30, 1973
Filing dateJan 13, 1972
Priority dateJan 13, 1972
Also published asCA965016A, CA965016A1
Publication numberUS 3713508 A, US 3713508A, US-A-3713508, US3713508 A, US3713508A
InventorsEckel O
Original AssigneeEckel O
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sound absorbing and attenuating structure
US 3713508 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

United States Patent [191 Eckel Jan. 30, 1973 SOUND ABSORBING AND ATTENUATING STRUCTURE Inventor: Oliver 0. Eckel, PO. Box 226,

Weston, Mass. 02138 [22] Filed: Jan. 13,1972

I [21] App1.N0.: 217,455

Related US. Application Data I63] Continuation-in-part of Ser. No. 18,531, March 11,

l970, abandoned.

"[52] US Cl ..181/33 GB, 181/33 G '[51] Int. Cl. ..E04b 1/86 [58] Field ofSearch.181/33 0,33 GA,33 GB,33 K; 52/404, 406, 624, 625, 627

[56] References Cited UNITED STATES PATENTS 1,578,344 3/1926 Munroe ..52/618 1,899,653 2/1933 Venzie I 1 ..52/404 2,128,540 8/1938 Rocque ..52/404 2,363,068 11/1944 Leadbetter ..52/404 3,120,295 2/1964 Lemmerman.... .....181/33 GB 3,273,297 9/1966 Wehe ..181/33 GB FOREIGN PATENTS OR APPLICATIONS 3,907 4/1901 Austria ..52/624 Primary ExaminerRobert S. Ward, Jr. Attorney-Harold E. Cole [57] ABSTRACT does, but is equipped with shelves that extend al-,

ternately left to right and right to left. Covers at the top and bottom extremities close my structure.

6 Claims, 4 Drawing Figures SOUND ABSORBING AND ATTENUATING STRUCTURE This is a continuation-in-part of my Pat. application, Ser. No. 18,531, filed Mar. ll, 1970, for a Sound Absorbing And Attenuating Panel, and now abandoned.

My principal object is to provide a structure so formed that absorption of sound waves is increased without having to increase the thickness of the structure, and effecting this economically, by reducing weight.

The foregoing and other objects which will appear as the nature of the invention is better understood, may be accomplished by a construction, combination and arrangement such as is disclosed by the drawing. The na ture of the invention is such as to render it susceptible to various changes and modifications, and, therefore, I am not to be limited to the construction disclosed by the drawing, nor to the particular parts described in the specification; but am entitled to all such changes therefrom as fall within the scope of my claims.

In the drawing:

FIG. 1 is a top plan view showing a number of my panels joined together.

FIG. 2 is a perspective view of a complete panel.

FIG. 3 is an enlarged, sectional view taken on the line 33 of FIG. 2.

FIG. 4 is an enlarged, fragmentary perspective view of my panel, one side of said panel being broken away to show the interior thereof.

As illustrated, my panel 8 has supporting means known as a perimeter frame 10 with a cover 12 at one end having a flange l3 terminating in a turned over, inwardly extending portion or loop portion 14. A similar cover 16 is at the opposite end that also has a loop portion, not shown.

Said frame 10 also has a left side 18 and a right side 19 along which said covers 12 and 16 extend a short distance. Attached to said sides is a front face member 20 formed of mesh or similar material and a back face member 22 similarly formed. The foregoing provides a perimeter frame 10 which retains acoustical insulating means such as fiber glass or other sound absorbing material later referred to.

Within said frame 10 is a septum 26 that extends between and reaches said covers 12 and 16. Said septum has a plurality of shaft portions 28, 30, 32, and 34, some relatively short, as shown, although the number and length may be varied. These shaft portions not only strengthen the septum, but they alternate their positions as will be later referred to. Between each two shaft portions, and extending at a right angle thereto, there are connectors shown as 44, 46 and 48.

Said septum 26 not only defines a compartment 42 intermediate two outer compartments 40 and 43. Said two outer compartments are filled with said sound insulating means, such as mineral wool or fiber glass, which are preferably formed in rigid layers M that may be cemented to one surface of said shaft portions 28, 30, 32 and 34, and to said sides 18 and 19. Said intermediate compartment 42 is empty to thus provide a space to effect sound absorption between the sound insulating means in said compartments 40 and 43 on opposite sides thereof.

Said connectors 44, 46, 48, serve to alternate the positions of said shaft portions 28, 30, 32 and 34 so that one shaft portion IS next to a said compartment 40 and another is next to said compartment 43. This alternation accentuates the sound absorption qualities of my panel since said connectors interfere with the travel of sound waves to thus also serve as sound repellents.

In said FIG. 1, I show a number of said panels 8 hingedly joined together by means of well-known hinges 52, which structure makes it possible to enclose or set off a space occupied by a telephone switchboard, business machines, between machinery in textile plants or other similar installations.

What I claim is:

1. A sound absorbing structure comprising outer supporting means having front and rear face members spaced apart, a septum supported by said means and positioned intermediate of and spaced from said front and rear face members to thereby provide an intermediate compartment and two compartments in said spaces at opposite sides of said septum, said septum having shaft portions alternately adjoining said latter two compartments and having connectors spaced apart and extending respectively at an angle between two of said shaft portions, and sound absorbing material in said latter two compartments.

2. A sound absorbing structure as of claim 1, said intermediate compartment being empty, said material forming a rigid unit in each of said latter two compartments.

3. A sound absorbing structure as of claim 1, said supporting means having sides at opposite extremities of said structure, and covers having flanges respectively extending parallel with and adjacent said sides and respectively terminating in loop portions turned inwardly towards said sides.

4. A sound absorbing structure as of claim 1, an adjoining said structure, and hinges movably connecting said structures.

5. A sound absorbing structure as of claim 1, said supporting means having covers at opposite ends thereof, said septum shaft portions extending from and between said covers.

6. A sound absorbing structure as of claim 5, said intermediate compartment being empty, said means having sides at opposite extremities of said structure, said covers having flanges respectively extending parallel with and adjacent said sides.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3934382 *Feb 27, 1974Jan 27, 1976Gartung Clifford WModular sound-absorbing screens
US3949827 *Apr 24, 1975Apr 13, 1976Owens-Corning Fiberglas CorporationAcoustical panel assembly
US4031664 *Jan 20, 1976Jun 28, 1977United States Gypsum CompanySuspension system for sound absorption panels
US4057123 *Dec 3, 1975Nov 8, 1977Conwed CorporationLightweight sound absorbent panels having high noise reduction coefficient
US4227355 *Mar 30, 1978Oct 14, 1980United States Gypsum CompanySupport system for sound absorbing panels
US4276954 *Oct 1, 1979Jul 7, 1981Acoustic StandardsAdjustable light and air-admitting window thermal and acoustic barrier system
US4441580 *Oct 17, 1980Apr 10, 1984Steelcase Inc.Acoustical control media
US4832152 *Mar 22, 1988May 23, 1989Herman Miller, Inc.Acoustic tile
US4838524 *Sep 8, 1987Jun 13, 1989Cyclops CorporationNoise barrier
US5418340 *Nov 22, 1993May 23, 1995Wambolt; Bryan K.Method and apparatus for acoustical partition
US5424497 *Jan 25, 1994Jun 13, 1995California Prison Industry AuthoritySound absorbing wall panel
US20060260870 *Mar 15, 2006Nov 23, 2006Nagata Kosakusho Co., Ltd.Sound absorber and sound absorbing device
Classifications
U.S. Classification181/287
International ClassificationE04B1/82, E04B1/84, E04B2/74, E04B1/86
Cooperative ClassificationE04B2001/8452, E04B2/7427, E04B2001/8428, E04B2/7409, E04B1/8227
European ClassificationE04B2/74C3D3, E04B1/82E
Legal Events
DateCodeEventDescription
Feb 2, 1981ASAssignment
Owner name: ECKEL INDUSTRIES, INC. 155 FAWCETT ST, CAMBRIDGE,
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ECKEL, OLIVER C.;REEL/FRAME:003826/0793
Effective date: 19810126