Patent US3832105A successfully refreshed from Google Patents.
US3832105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible blade rotary pump
Assignee: Individual
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Filing: 1972-07-21
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Granted: 1974-08-27
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Expires: 1992-07-21
Abstract
Abstract The present invention provides a rotary pump having a rotor between two rotary parallel plates, said rotor having at regular intervals plural flexible blades and fixing at an eccentric shaft, said plate having along its circumference arc guide holes as many as said blades, said guide hole inserted by a rod to pass through a hole of an end of said blade and to insert into another opposite guide hole.
Inventors
- 👤 K Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:10
CPC Classifications
F; F04; F04C; F04C5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
299 words
In a rotary pump, housing means defining in its interior a circular chamber, rotary shaft means carried by said housing means for rotation about the axis of said rotary shaft means, said rotary shaft means being eccentrically mounted with respect to said circular chamber the latter having an axis spaced from and extending parallel to the axis of said rotary shaft means, and a pair of parallel rotary discs situated in said circular chamber and formed with openings passing therethrough and having a diameter large enough to accommodate said rotary shaft means, said pair of discs extending perpendicularly to said rotary shaft means, aNd rotor means situated between said pair of discs and operatively connected with said shaft means to rotate therewith, said rotor means having a central hub portion fixed to said rotary shaft means and a plurality of blade portions extending outwardly from said central hub portion, said blade portions being flexible and each having a leading convex surface and a trailing concave surface, said concave surface of each blade portion being formed at its connection to said hub portion of said rotor means with an axially extending groove which thus is situated at the base of the convex leading surface of the next following blade portion, said blade portions respectively carrying at their outer ends longitudinally extending rods which are parallel to the axis of said shaft means and said discs respectively being formed with arcuate slots passing therethrough and receiving ends of said rods with said slots extending along a circle concentric with the axis of said chamber, whereby during rotation of said rotor means, said blade portions are free to move with respect to said discs at said rods which are movable along said slots while flexing is facilitated by said axially extending grooves.
Claim 2
Dependent Claim
299 words
In a rotary pump, housing means defining in its interior a circular chamber, rotary shaft means carried by said housing means for rotation about the axis of said rotary shaft means, said rotary shaft means being eccentrically mounted with respect to said circular chamber the latter having an axis spaced from and extending parallel to the axis of said rotary shaft means, and a pair of parallel rotary discs situated in said circular chamber and formed with openings passing therethrough and having a diameter large enough to accommodate said rotary shaft means, said pair of discs extending perpendicularly to said rotary shaft means, aNd rotor means situated between said pair of discs and operatively connected with said shaft means to rotate therewith, said rotor means having a central hub portion fixed to said rotary shaft means and a plurality of blade portions extending outwardly from said central hub portion, said blade portions being flexible and each having a leading convex surface and a trailing concave surface, said concave surface of each blade portion being formed at its connection to said hub portion of said rotor means with an axially extending groove which thus is situated at the base of the convex leading surface of the next following blade portion, said blade portions respectively carrying at their outer ends longitudinally extending rods which are parallel to the axis of said shaft means and said discs respectively being formed with arcuate slots passing therethrough and receiving ends of said rods with said slots extending along a circle concentric with the axis of said chamber, whereby during rotation of said rotor means, said blade portions are free to move with respect to said discs at said rods which are movable along said slots while flexing is facilitated by said axially extending grooves.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |