US3741335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound reducing unit for machinery
Assignee: WOODWORKING ENG AND MACHINERY CO
•
Filing: 1972-05-30
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Granted: 1973-06-26
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Expires: 1992-05-30
Abstract
Abstract An open top housing formed of sound deadening material surrounds the lower portion of machinery with the upper portion of machinery encased by a movable housing formed of sound deadening material. A depending conduit extends through top of the movable housing with cooperating guide means between said top and the depending conduit limiting lateral movement between said top and the conduit. Movable housing is moved selectively along the conduit to an upper position spaced from the stationary housing to a lower position in cooperation with the stationary housing.
Inventors
- 👤 R Lebeau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:37
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/16
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
138 words
A sound reducing unit for sound emitting machinery comprising: a. an open bottom, movable housing formed of a sound deadening material and having a top wall connected to depending side walls disposed to cooperate with a supporting structure to encase said machinery, b. there being an opening through said top wall, c. a conduit having a depending portion extending downwardly through said opening in said top wall, d. cooperating guide means between said top wall and the depending portion of said conduit limiting lateral movement of said top wall relatIve to said conduit so that said movable housing is movable selectively to an upper position in spaced relation to said supporting structure providing access to said machinery and to a lower position in cooperation with said supporting structure, and e. means to raise and lower said movable housing
Claim 2
Dependent Claim
138 words
A sound reducing unit for sound emitting machinery comprising: a. an open bottom, movable housing formed of a sound deadening material and having a top wall connected to depending side walls disposed to cooperate with a supporting structure to encase said machinery, b. there being an opening through said top wall, c. a conduit having a depending portion extending downwardly through said opening in said top wall, d. cooperating guide means between said top wall and the depending portion of said conduit limiting lateral movement of said top wall relatIve to said conduit so that said movable housing is movable selectively to an upper position in spaced relation to said supporting structure providing access to said machinery and to a lower position in cooperation with said supporting structure, and e. means to raise and lower said movable housing
Claim 3
Dependent Claim
35 words
A sound reducing unit for machinery as defined in claim 1 in which said supporting structure is a stationary housing formed of a sound deadening material disposed to encase the lower portion of said machinery.
Claim 4
Dependent Claim
30 words
A sound reducing unit for machinery as defined in claim 1 in which a major portion of the walls of said movable housing are formed of light, sound deadening material.
Claim 5
Dependent Claim
27 words
A sound reducing unit for machinery as defined in claim 1 in which the major portion of the walls of said movable housing are formed of fiberglass.
Claim 6
Dependent Claim
29 words
A sound reducing unit for machinery as defined in claim 1 in which the outer surface of said sound deadening material is covered by a protective sheet of material.
Claim 7
Dependent Claim
29 words
A sound reducing unit for machinery as defined in claim 1 in which reinforcing members extend diagonally alongside surfaces of said movable housing to add strength and rigidity thereto.
Claim 8
Dependent Claim
59 words
A sound reducing unit as defined in claim 1 in which said cooperating guide means between said top wall and the depending portion of said conduit comprises: a. vertical guide rails carried by opposite sides of said depending portion, and b. rollers carried by said top wall at opposite sides of said depending portion and engaging said guide rails.
Claim 9
Dependent Claim
28 words
A sound reducing unit as defined in claim 1 in which a transverse section of said depending portion of said conduit is formed of a sound deadening material.
Claim 10
Dependent Claim
56 words
A sound reducing unit as defined in claim 1 in which oppositely disposed passageways are provided through opposite sides of said side walls of said movable housing for passing materials to be processed by said machinery and movable closure members extend across said passageways to close said passageways while materials are not passing through said passageways.
Claim 11
Dependent Claim
34 words
A sound reducing unit as defined in claim 9 in which a movable closure member is mounted at opposite ends of each said passageway through said side walls to define an air space therebetween.
Claim 12
Dependent Claim
66 words
A sound reducing unit as defined in claim 10 in which each movable closure member is a flexible member supported along its upper edge adjacent the upper edge of the adjacent passageway and vertical slits are provided in the lower portion of each closure member with said vertical slits of the closure members at opposite ends of said passageway being out of alignment with each other.
References Cited (Backward Citations)
US1749177A
Cited
US2177686A
Cited
US2355208A
Cited
US2701618A
Cited
US3684053A
Cited
US3700068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |