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:
Dec. 03, 2013
Filed:
Oct. 30, 2009
Javier Parraga Gimeno, Madrid, ES;
Qi Zhang, Shenzhen, CN;
Javier Parraga Gimeno, Madrid, ES;
Qi Zhang, Shenzhen, CN;
Woxter Technology Co., Ltd., Causeway Bay, HK;
Abstract
A telescopic loudspeaker includes an extendable telescopic body () responsible for housing a loudspeaker () for generating sound from a input audio signal and for creating a inner resonance chamber () of volume Vwhen the telescopic body () is retracted and of volume Vwhen the telescopic body () is extended, VVbeing met. The telescopic body () includes a support base (); of hollow bodies () with decreasing transversal sections and coupleable to one another, the section decreasing progressively from the body () closest to the base () up to the body () furthest from the base (); and a gasket () between each pair of consecutive bodies () of the telescopic body () for sealing the air chamber inside the enclosure of the telescopic loudspeaker.