Non-vibrational oscillating blade piezoelectric blower
AssigneePiezo Electric Products, Inc.
InventorsHenry H. Kolm, Robert E. Carter
Life of this patent
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Abstract
A non-vibrational oscillating blade piezoelectric blower is disclosed, including: a piezoelectric bender and means for supporting the piezoelectric bender at its inertial nodes. Weights may be attached to the bender to control the location of the inertial nodes. Flexible blades may be attached to the bender at various locations and with their planes in various orientations. The blower according to this invention may also consist of two benders oscillating 180 degrees out of phase to further minimize vibration and noise.
Claims22
A non-vibrational oscillating blade piezoelectric blower comprising:
- a piezelectric bender having at least two spaced inertial nodes;
- means for supporting said piezoelelctric bender at each of said inertial nodes;
- and a flexible blade mounted to said piezoelectric bender remote from said nodes and driven to oscillate by said piezoelectric bender.
A non-vibrational oscillating blade piezoelectric blower comprising:
- a piezoelectric bender having at least two spaced inertial nodes;
- means for supporting said piezoelectric bender at its inertial nodes;
- and at least one flexible blade mounted parallel to and along a lateral edge of said piezoelectric bender between said nodes and driven to oscillate by said piezoelectric bender.
A non-vibrational oscillating blade piezoelectric blower comprising:
- a piezoelectric bender having an inertial node at each end;
- means for supporting said piezoelectric bender at its inertial nodes;
- and at least one flexible blade mounted parallel to and along a lateral edge of said piezoelectric bender between said nodes and driven to oscillate by said piezoelectric bender.
A non-vibrational oscillating blade piezoelectric blower comprising:
- a folded piezoelectric bender having at least two spaced inertial nodes and including first and second extended bender sections each attached to one end of said bender and extending inwardly along, spaced from and parallel to said bender;
- means for supporting said piezoelectric bender at its inertial nodes;
- a flexible blade including two separate blade portions one attached to each of the adjacent inner ends of said bender sections and driven to oscillate by said piezoelectric bender.
Dependencies are inferred from the claim text.