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:
May. 17, 1977
Filed:
Oct. 10, 1975
Werner W Martinmaas, Reno, NV (US);
Other;
Abstract
A chair or bed consists of a base structure forming a closed, external housing and a body-supporting means which cooperates with the housing to provide a chamber which is closed but for pressure relief openings. One or more loudspeakers is mounted in the chamber facing the body-supporting means, and each speaker is operatively connected to an amplifier so that it may produce vibrations within the chamber which are in the audible frequency range, and which are transmitted through the body-supporting means to an occupant thereof. The amplifier is of standard type which functions either with a radio receiver or with a phonograph, and which has a volume control for varying the intensity of the vibrations and tone controls for varying the output as between bass and treble.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile