Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1994-05-23
1995-09-12
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310327, 310345, H01L 4108
Patent
active
054499640
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.
REFERENCES:
patent: 2777016 (1957-01-01), Wood
patent: 2879413 (1959-03-01), Johannsen
patent: 2955170 (1960-10-01), Dieter, Jr. et al.
patent: 3043921 (1962-07-01), Hester
patent: 3108161 (1963-10-01), Tourtellot
patent: 3433487 (1969-03-01), Kawaguchi et al.
patent: 3725561 (1973-04-01), Paul
patent: 4012604 (1977-03-01), Speidel
patent: 4054808 (1977-10-01), Tanaka
patent: 4110654 (1978-08-01), Paul
patent: 4538139 (1988-08-01), Clemente
patent: 4837836 (1989-06-01), Barcus
patent: 4984498 (1991-01-01), Fishman
patent: 5036742 (1991-08-01), Youakim
patent: 5134920 (1992-08-01), Clark
patent: 5136202 (1992-08-01), Carenzo et al.
"The Next Generation in Drum Triggers", Trigger Perfect, Tualatin, Orev.; 4 pp.; 1994.
"1993 Drum Trigger Line and Triggering Guide"; Trigger Perfect, Pasadena, Calif.; 8 pp.; 1993.
LandOfFree
Triggering transducer apparatus for acoustic device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Triggering transducer apparatus for acoustic device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Triggering transducer apparatus for acoustic device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-407531