US3869224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary gear device to provide pulsating flow
Assignee: Individual
•
Filing: 1972-12-26
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Granted: 1975-03-04
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Expires: 1992-12-26
Abstract
Abstract This invention utilizes the rotary motion of a pair of gears to provide pulsating or reciprocating motion to a fluid. The device comprises a gear block containing a gear cavity, a power gear rotatably mounted in the gear cavity and operably connected to a power unit, a mutilated idler gear disposed in the cavity in meshing contact with the power gear, a fluid reservoir fluidly connected to the cavity, and a discharge conduit fluidly connected to the cavity, wherein during a complete revolution of the mutilated gear the fluid is pumped from the reservoir to the discharge conduit in a pulsating flow.
Inventors
- 👤 Glen E Brinkman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:16
CPC Classifications
F; F04; F04C; F04C13/00; F04B; F04B43/00; F04B43/02; F04B43/06; F04C2/00; F04C2/08; F04C2/082; F04C2/084
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
377 words
A rotary gear device to provide pulsating fluid flow, the device comprising: a gear block having a gear cavity formed therein and a hole formed through one wall thereof which communicates with said cavity, said cavity having an inlet port and an outlet port; a toothed power gear rotatably mounted in said cavity and having a shaft disposed in said hole and projecting axially from said power gear; a first idler gear rotatably mounted in said cavity in meshing engagement with said power gear, wherein said gears are operable to pump fluid from said inlet port to said outlet port, said first idler gear having a plurality of adjacent mutilated teeth formed by removing a portion of said teeth and a portion of the gear hub adjacent thereto, thus maintaining said meshing engagement during a full revolution of said first idler gear and creating a passage between said gears during a portion of said revolution; a fluid reservoir disposed in said gear block and fluidly connected to said inlet port; a discharge conduit formed in said gear block and fluidly connected to said outlet port; barrier means mounted in said discharge conduit, said barrier means being sequentially moveable between a first position and a second position by displacement of fluid in said discharge conduit; and a second idler gear rotatably mounted in said cavity and disposed opposite said first idler gear in meshing engagement with said power gear, said second idler gear having a plurality of mutilated teeth formed by removing a portion of said teeth and a portion of the gear hub adjacent thereto, thus maintaining said meshing engagement during a full revolution of said second idler and creating a passage between said power gear and said second idler gear during a portion of said revolution, said cavity having a second inlet port and a second outlet port, wherein said gears are operable to pump fluid from said second inlet port to said second outlet port, said second inlet port fluidly connected to said reservoir, a second discharge conduit formed in said gear block and fluidly connected to said second outlet port, and second barrier means being sequentially moveable between a first position and a second position by displacement of fluid in said second discharge conduit.
Claim 2
Dependent Claim
377 words
A rotary gear device to provide pulsating fluid flow, the device comprising: a gear block having a gear cavity formed therein and a hole formed through one wall thereof which communicates with said cavity, said cavity having an inlet port and an outlet port; a toothed power gear rotatably mounted in said cavity and having a shaft disposed in said hole and projecting axially from said power gear; a first idler gear rotatably mounted in said cavity in meshing engagement with said power gear, wherein said gears are operable to pump fluid from said inlet port to said outlet port, said first idler gear having a plurality of adjacent mutilated teeth formed by removing a portion of said teeth and a portion of the gear hub adjacent thereto, thus maintaining said meshing engagement during a full revolution of said first idler gear and creating a passage between said gears during a portion of said revolution; a fluid reservoir disposed in said gear block and fluidly connected to said inlet port; a discharge conduit formed in said gear block and fluidly connected to said outlet port; barrier means mounted in said discharge conduit, said barrier means being sequentially moveable between a first position and a second position by displacement of fluid in said discharge conduit; and a second idler gear rotatably mounted in said cavity and disposed opposite said first idler gear in meshing engagement with said power gear, said second idler gear having a plurality of mutilated teeth formed by removing a portion of said teeth and a portion of the gear hub adjacent thereto, thus maintaining said meshing engagement during a full revolution of said second idler and creating a passage between said power gear and said second idler gear during a portion of said revolution, said cavity having a second inlet port and a second outlet port, wherein said gears are operable to pump fluid from said second inlet port to said second outlet port, said second inlet port fluidly connected to said reservoir, a second discharge conduit formed in said gear block and fluidly connected to said second outlet port, and second barrier means being sequentially moveable between a first position and a second position by displacement of fluid in said second discharge conduit.
Claim 3
Dependent Claim
24 words
A rotary gear device as defined in claim 1 wherein said gears are horizontally disposed and said reservoir is disposed above said inlet ports.
Claim 4
Dependent Claim
18 words
A rotary gear device as defined in claim 2 wherein said shaft hole fluidly communicates with said reservoir.
Claim 5
Dependent Claim
47 words
A rotary gear device as defined in claim 3 wherein said first discharge conduit and said second discharge conduit are interconnected and said first barrier means and said second barrier means forms a piston having a piston rod connected thEreto and projecting outwardly of said discharge conduit.
Claim 6
Dependent Claim
35 words
A rotary gear device as defined in claim 3 wherein approximately one half of the teeth of both said idler gears are mutilated and said mutilated portions are disposed in opposed relation to each other.
Claim 7
Dependent Claim
25 words
A rotary gear device as defined in claim 3 wherein said first barrier means is a diaphragm and said second barrier means is a diaphragm.
Claim 8
Dependent Claim
28 words
A rotary gear device as defined in claim 6 wherein said first discharge conduit and said second discharge conduit are fluidly interconnected downstream of each of said diaphragms.
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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) | 1978-03-03 | 1978-09-02 | 1979-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-03 | 1982-09-02 | 1983-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-03 | 1986-09-02 | 1987-03-04 | $7700.00 | Window Closed / Lapsed |