Class 310/347 - Compensated air gap

Subclass of Class 310 - Electrical generator or motor structure
Definition: Subject matter wherein the device includes at least one
No. of patents: 4
Last issue date: 04/15/2008

Number	Title	Issue Date
7358643	Piezoelectric actuator, method for manufacturing piezoelectric actuator, and liquid transporting apparatus A piezoelectric actuator includes a supporting member in which pressure chambers are formed, a vibration plate which is joined to a joining section of the supporting member, a piezoelectric layer formed on the vibration plate, and an FPC provided on the piezoelectri...	04/15/2008
7164222	Film bulk acoustic resonator (FBAR) with high thermal conductivity The specification discloses embodiments of an apparatus comprising a film bulk acoustic resonator (FBAR) filter comprising a piezoelectric membrane having a portion thereof sandwiched between a first electrode and a second electrode, the piezoelectric membrane being...	01/16/2007
7154212	Acceleration insensitive piezo-microresonator An acceleration insensitive piezo-microresonator provides substantially reduced acceleration sensitivity with a plano—plano piezo-microresonator, upper gap and lower gap embedded in a rigid structural supporting member holding major surfaces of the piezo-microreso...	12/26/2006
5691582	Can body maker with linear motor redraw actuator A can body maker wherein the redraw sleeve is provided with an plurality of air escape openings to provide for the passage of air as the ram moves through the redraw sleeve and wherein the redraw sleeve is attached to the armature of a linear motor which ...	11/25/1997

PatentStorm