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. 01, 2012
Filed:
Jun. 03, 2011
Applicant:
Frederick E. Severson, Beaverton, OR (US);
Inventor:
Frederick E. Severson, Beaverton, OR (US);
Assignee:
QS Industries, Inc., Beaverton, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63H 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
On-board model railroad speaker enclosure designs are presented that isolate back and front speaker waves. In one example, a first speaker may be disposed inside of a model steam locomotive tender, and a second speaker disposed inside of the model steam locomotive. Bass sounds and mid-range sounds may be separately directed to the first and second speakers, and isolated from mixing with one another.