Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – With mounting or supporting means
Reexamination Certificate
1999-07-07
2001-05-22
Stodola, Daniel P. (Department: 3634)
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
With mounting or supporting means
C160S199000, C160S214000, C049S199000
Reexamination Certificate
active
06234237
ABSTRACT:
TECHNICAL FIELD
The invention relates to a system for suspension in elongated bearing rails of preferably plate-shaped sound-absorbing elements of a height significantly smaller than the height of the walls in the room in question in such a manner that said elements, if desired, can be taken down for cleaning and disinfecting purposes, where said sound-absorbing elements are suspended in the bearing rails for instance by means of rollers, such as wheels.
BACKGROUND ART
It is important especially inside factory buildings that the sound-absorbing elements are cleaned and disinfected at regular intervals.
German Offenlegungsschrift No. 3,048,214 discloses a suspension of sound-absorbing mats with a drain at the lower edge of the mats. The drain catches the wash water when the sound-absorbing elements are cleaned by way of a spraying thereon of detergent from stationary spray nozzles placed next to each mat.
German Offenlegungsschrift No. 4,220,492 discloses sound-attenuating plates to be suspended in large rooms or buildings. Each plate comprises a core of sound-absorbing fibre material covered on the outer side of a porous lining. The plate elements are suspended in slides by means of hooks, and these slides can be displaced along a T-shaped rail. The slide and the T-shaped rail are, however, subjected to some friction.
BRIEF DESCRIPTION OF THE INVENTION
The object of the invention is to provide a system for suspension of sound-absorbing plate-shaped elements, whereby said elements are easier to take down especially for cleaning purposes than previously.
A suspension system of the above type is according to the invention characterised by the sound-absorbing elements communicating with one another in such a manner that they can be displaced like a train of carriages. As a result, it is particularly easy to mount and subsequently take down the sound-absorbing elements one by one from one and the same place.
In this manner each plate-shaped element can be moved along the carrier means and taken down at the end of said carrier means for cleaning and disinfecting purposes with the result that particular scaffoldings or the like at various locations inside the factory building are no longer required.
Furthermore, the sound-absorbing element may according to the invention be suspended in two wheels arranged at each side of the rail, a space applying between the wheels for the suspension means of the carrier rail extending to the ceiling structure.
Moreover, the sound-absorbing elements may according to the invention be interconnected in such a manner that they can be displaced like a “train of carriages” with the result that the taking down of each element is facilitated.
The invention relates also to a method of cleaning and disinfecting plate-shaped sound-absorbing elements suspended in elongated carrier rails by means of rollers, such as wheels.
The method is according to the invention characterised by the sound-absorbing elements being moved along the carrier rail so as at the end thereof to be taken down one by one for cleaning and disinfecting purposes.
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Cooper & Dunham LLP
Dowden Donald S.
HM Akustik A/S
Lev Bruce A.
Stodola Daniel P.
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