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:
Feb. 22, 1994
Filed:
Feb. 03, 1993
Robert P Miller, Charlottesville, VA (US);
Other;
Abstract
A slide housing having a plurality of rows of side wall ports directed into the side walls of the housing is arranged to receive a slide block within the housing, wherein the slide block includes through-extending bores arranged for alignment with the side wall bores, with a helical wind tube mounted to the side walls, with the wind tube having individual coils, and each coil including a coil exit port, and the coil exit ports are mounted to the side wall ports, with the slide arranged to effect intercommunication between a selected number of the individual coils to effect pitched change in use of the instrument. The slide block includes a slide conduit received within an instrument bell conduit in pneumatic communication with the instrument bell.