US4595338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-vibrational oscillating blade piezoelectric blower
Assignee: PIEZOELECTRIC PRODUCTS Inc 186 MASSACHUSETTS AVE CAMBRIDGE MA 02139 A CORP
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Filing: 1983-11-17
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Granted: 1986-06-17
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Expires: 2003-11-17
Abstract
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.
Inventors
- 👤 Henry H. Kolm
- 👤 Robert E. Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:15
CPC Classifications
F; F04; F04D; F04D23/00; F04D23/006; F04D33/00
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
50 words
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.
Claim 2
Dependent Claim
50 words
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.
Claim 3
Dependent Claim
17 words
The blower of claim 1 in which said blade is mounted to said bender between said nodes.
Claim 4
Dependent Claim
15 words
The blower of claim 1 in which said blade is generally parallel to said bender.
Claim 5
Dependent Claim
32 words
The blower of claim 3 in which said blade is mounted to one lateral edge of said bender and a second blade is mounted to the opposite lateral edge of said bender.
Claim 6
Dependent Claim
18 words
The blower of claim 1 further including a balancing weight mounted to said bender beyond each said node.
Claim 7
Dependent Claim
20 words
The blower of claim 1 in which said means for supporting includes elastic mounting means for securing said piezoelectric bender.
Claim 8
Dependent Claim
28 words
The blower of claim 1 in which the inertial nodes are at the ends of said bender and said means for supporting support said bender at its ends.
Claim 9
Dependent Claim
29 words
The blower of claim 7 further including a second bender having inertial nodes at its ends and mounted to said means for supporting parallel to the first said bender.
Claim 10
Dependent Claim
22 words
The blower of claim 1 in which said blade is mounted to said bender by a connecting bracket which stiffens said blade.
Claim 11
Dependent Claim
20 words
The blower of claim 1 in which said blade is divided into a plurality of sections with a common base.
Claim 12
Dependent Claim
26 words
The blower of claim 1 in which said bender extends beyond said nodes and there is a blade attached to said bender beyond each said node.
Claim 13
Dependent Claim
15 words
The blower of claim 11 in which said blades are attached transversely of said bender.
Claim 14
Dependent Claim
38 words
The blower of claim 11 in which said bender is folded and includes 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.
Claim 15
Dependent Claim
27 words
The blower of claim 13 in which said blade includes two separate blade portions one attached to each of the adjacent inner ends of said bender sections.
Claim 16
Dependent Claim
20 words
The blower of claim 1 in which said bender includes a balancing weight mounted to said bender between said nodes.
Claim 17
Dependent Claim
15 words
The blower of claim 1 in which said means for supporting have low internal damping.
Claim 18
Dependent Claim
16 words
The blower of claim 1 further including a drive circuit for oscillating said bender at resonance.
Claim 19
Dependent Claim
56 words
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.
Claim 20
Dependent Claim
56 words
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.
Claim 21
Dependent Claim
16 words
The blower of claim 18 in which said bender includes a balancing weight beyond each node.
Claim 22
Dependent Claim
56 words
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.
Claim 23
Dependent Claim
56 words
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.
Claim 24
Dependent Claim
29 words
The blower of claim 20 further including a second bender having inertial nodes at its ends and mounted to said means for supporting parallel to the first said bender.
Claim 25
Dependent Claim
84 words
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.
Claim 26
Dependent Claim
84 words
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.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-16 | 1989-12-16 | 1990-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-16 | 1993-12-16 | 1994-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-16 | 1997-12-16 | 1998-06-17 | $7700.00 | Window Closed / Lapsed |