Resources Contact Us Home
Piezoelectric pump assembly

Image Number 11 for United States Patent #4983876.

A piezoelectric diaphragm pump assembly is disclosed, wherein there is disposed a housing having an inlet port provided with a feed check valve, and an outlet port provided with a discharge check valve, wherein a casing is disposed for accomodating an amplification mechanism, said casing having an L-shape stationary member, to which a plate spring is fixed, a front end portion of the plate spring being fixed with a lever member of the amplification mechanism, which is engaged with an upper portion of a longitudinally effective type piezoelectric actuator, and wherein a diaphragm body coated with a film is disposed, characterized in that a front end portion of the lever member is fixed with a supporting member which is, in turn, fixed with a U-shape supporting member for supporting the diaphragm body, and that the supporting member is connected via a spring to the L-shape stationary member.

  Recently Added Patents
Area efficient through-hole connections
Electric rotating machine for vehicle
Display screen with graphical user interface
Manufactured product configuration
Calendar integration methods and systems for presentation of events having combined activity and location information
Adaptive contact window wherein the probability that an answering user/expert will respond to a question corresponds to the answering users having response rates that are based on the time of
Image forming device
  Randomly Featured Patents
Transmit antenna alignment peak search method and apparatus
RFID-based loss-prevention system
Broadcast receiver and method for optimizing a scale factor for a log-likelihood mapper
Apparatus for holding, supporting and maneuvering an animal carcass while holding open the rib cage of the carcass
Capacitive pressure transducer with an integrally formed front housing and flexible diaphragm
22109, a novel human thioredoxin family member and uses thereof
Inkjet drop ejection apparatus with radially extending thermal actuators
Color diffusion transfer element with hydroquinone type compound
Device for regulating the minute hand of a clock having at least a minute hand and a second hand
Display system for stiff flat samples