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:
Sep. 12, 1995
Filed:
May. 23, 1994
Michael J Snyder, Tualatin, OR (US);
Other;
Abstract
Disclosed is a triggering transducer for signaling external equipment from an acoustic device having a foundational structure and an acoustic member, The transducer includes a base for mounting to the foundational structure; an elastic beam member having an anchor portion supported relative to the base and having a beam extremity for limited area contact with the acoustic member; a piezoelectric element attached to the beam member between the beam extremity and the anchor portion for coupling bending strain from the beam member to the piezoelectric element in response to vibration of the acoustic member, the piezoelectric element being in proximate facing contact with an active portion of the beam member, the active portion being inclined at an angle .theta. from the acoustic member, the angle .theta. is between approximately 30.degree. and approximately 45.degree.; a first resilient member bonded over substantially the entire face area of the piezoelectric element for damping the element, the beam member being U-shaped between the anchor portion and the active portion, the first resilient member being located between the active and anchor portions of the beam member and connecting the anchor portion of the beam member; an arm member, the arm member being adjustably fixable relative to the base; and a second resilient member supportively connecting the anchor portion of the beam member to the arm member.