The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 1998
Filed:
Jul. 03, 1995
Stephen L Batog, Coal Valley, IL (US);
Robert T Peterson, Gladstone, IL (US);
Case Corporation, Racine, WI (US);
Abstract
Disclosed is a foam sound barrier for a machine such as a construction machine having several control levers. The barrier includes acoustic blocks, each of which has a notch between plural projections. Such blocks are made of acoustic material for sound-deadening and define a clearance portion (i.e., a hole) for accommodating the levers. In one embodiment, the blocks are conformably 'saw-tooth' shaped for wedge fit against one another and in another embodiment, the blocks are collinear and retain a bellows-like boot around one of the levers. The embodiments can be used alone or together. The barrier reduces sound level by at least about 0.8 decibels and also helps exclude dirt from the machine operator's compartment.