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
Method and system for testing indirect bandgap semiconductor devices using luminescence imaging
High surface area composition for use in the catalytic hydroconversion of a heavy hydrocarbon feedstock, a method making such composition and its use
Azole derivatives, methods for producing the same, intermediate thereof, agro-horticultural agents
Methods and systems for delivering customized advertisements
Handheld electronic communication device having sliding display
Display for gloves
Image stabilization
  Randomly Featured Patents
System and method for tracking luggage
Electronic controlled engine exhaust treatment system to reduce NOx emissions
Control system for transfer apparatus
Mechanical heart valve with compliant sewing ring
Sliding roof panel assembly
Circuit substrate and process for its production
Image synthesizing apparatus, image synthesizing method, and computer-readable recording medium in which an image synthesize processing program is recorded
Rotatable organizer
Monitoring of downhole parameters and tools utilizing fiber optics