Acoustics – Auditorium
Patent
1975-03-10
1976-06-01
Hix, L. T.
Acoustics
Auditorium
F02F 700, F01N 110
Patent
active
039602370
ABSTRACT:
A sound reducing enclosure for a vibratory feeder includes a cylindrical base assembly which may be in one piece, or alternatively in two halves for ease of installation and maintenance of the equipment within the enclosure. The cylindrical base assembly rests upon a base plate comprising two flat half circles of 1/4 inch aluminum with the space between at right angles to the split between the cylinder halves and bounding a square hole for mounting clearance of vibratory feeder bowl equipment. A transparent generally hemispherical dome assembly of 1/4 inch plexiglass is hingedly secured to the top of the cylinder base assembly for trapping sound within the enclosure while allowing observation of the machine operations. A generally conical-shaped member covered with acoustical foam is suspended from the top of the dome with its apex downward and may be hollow to function as a parts filling funnel with the top hole in the dome being covered by two layers of lead-loaded vinyl and/or other appropriate materials slotted so as to allow parts to flow through while attenuating sound. Alternatively, the top assembly may be flat.
REFERENCES:
patent: 1910981 (1933-05-01), Bescherer
patent: 3316990 (1967-05-01), Wilner
patent: 3478958 (1969-11-01), Hinch
patent: 3700068 (1972-10-01), Francis
patent: 3860085 (1975-01-01), Gilbert
Cohen Jerry
Ecology Controls, Inc.
Hieken Charles
Hix L. T,.
Miska Vit N.
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