US3655294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump
Assignee: Marine Systems Inc
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Filing: 1970-01-19
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Granted: 1972-04-11
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Expires: 1990-01-19
Abstract
Abstract This invention is a fluid pump having an axially rotating duct which has an internal impeller blade therein disposed substantially axially. The pump has an inlet and outlet to couple the duct with a fluid medium functioning as the source and receiver of the fluid, and a powering means to axially rotate the duct to result in moving the fluid.
Inventors
- 👤 Robert H Thatcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:49
CPC Classifications
F; F04; F04D; F04D3/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
141 words
A fluid pump means comprising: a. a duct substantially cylindrical internally and having a plurality of curved internal impeller blades attached thereto to rotate therewith and adapted for axial movement of fluid, said impeller blades being substantially similar, disposed to a substantial degree axially within said duct, and positioned uniformly on the sides of said duct at oppositely disposed angles from the axis of said duct, said blades being tapered from a thicker portion adjacent the duct wall to a thinner edge portion, generally helical in contour, having a smoothly formed curvilinear edge smoothly coinciding with said duct wall and generally semi-eliptical in shape; b. an inlet to and an outlet from said duct having means to couple same with a fluid medium; and c. a means to couple said duct with a power means adapted to axially rotate said duct.
Claim 2
Dependent Claim
141 words
A fluid pump means comprising: a. a duct substantially cylindrical internally and having a plurality of curved internal impeller blades attached thereto to rotate therewith and adapted for axial movement of fluid, said impeller blades being substantially similar, disposed to a substantial degree axially within said duct, and positioned uniformly on the sides of said duct at oppositely disposed angles from the axis of said duct, said blades being tapered from a thicker portion adjacent the duct wall to a thinner edge portion, generally helical in contour, having a smoothly formed curvilinear edge smoothly coinciding with said duct wall and generally semi-eliptical in shape; b. an inlet to and an outlet from said duct having means to couple same with a fluid medium; and c. a means to couple said duct with a power means adapted to axially rotate said duct.
Claim 3
Dependent Claim
36 words
The pump means of claim 1 wherein said duct is cylindrical, and the plane of said impeller blade is disposed at an angle from the axis of said duct in the range of 15* to 75*.
Claim 4
Dependent Claim
36 words
The pump means of claim 1 wherein said duct is cylindrical, and the plane of said impeller blade is disposed at an angle from the axis of said duct in the range of 30* to 60*.
Claim 5
Dependent Claim
98 words
A fluid pump as described in claim 1, wherein: said means to couple said duct with said fluid medium has, a. a bearing member around said duct to hold same substantially in line with a conduit connecting said fluid medium and support for axial rotation of said duct; b. a seal member around said duct to retain the fluid within said duct and conduit; c. a flow straightening member within the portion of said conduit connecting said duct and said fluid medium; and d. said inlet to and outlet from said duct both having said flow straightening member.
Claim 6
Dependent Claim
101 words
A fluid pump as described in claim 1, wherein there is a means to remotely couple said duct with a power means adapted to axially rotate said duct, a. said power means comprising one selected from the group consisting of an engine, motor, and turbine; b. said duct having an extended flange member therearound adapted to receive a connecting Device; c. said power means having a hub member attached to its output member adapted to receive said connecting device; and d. said flange member of said duct and said hub of said power means connected by said connecting device encircling both.
Claim 7
Dependent Claim
103 words
A fluid pump as described in claim 1, wherein there is a means to directly couple said duct with a power means adapted to axially rotate said duct, a. said power means comprising one selected from the group consisting of a motor, engine, and turbine; b. said duct having an extended flange member therearound adapted with gearing to transmit rolling motion; c. said power means having a hub member attached to its output member adapted with gearing to transmit rolling motion; and d. said flange member of said duct and said hub member of said power means operably positioned to contact one another.
Claim 8
Dependent Claim
71 words
A fluid pump as described in claim 1, wherein there is a means to integrally couple said duct means with a power means adapted to axially rotate said duct, a. said power means being selected from the group consisting of a motor, pump, and turbine; and b. said power means having a passageway therethrough on the axis of the driving member operable to receive, retain, attach and rotate axially said duct.
Claim 9
Dependent Claim
51 words
A fluid pump as described in claim 1, wherein: said duct having internal impeller blade means has means to rotatably couple same with said fluid medium has, a. a plurality of rotatable ducts like said duct connected in a series fluid circuit; and b. said ducts are rotatable in opposite directions.
Claim 10
Dependent Claim
122 words
A fluid pump means comprising: a. a duct substantially cylindrical in form internally and having a plurality of internal impeller blades attached thereto to rotate therewith and adapted for axial movement of fluid, said impeller blades disposed to a substantial degree axially within said duct; b. a streamlined centerbody within said duct; c. said impeller blades being substantially similar, positioned on sides of said duct at oppositely disposed angles, fixed to said centerbody, and support said centerbody, said centerbody turning with said duct in operation; d. an inlet to and an outlet from said duct having means to couple same with a fluid medium; and e. a means to couple said duct with a power means adapted to axially rotate said duct.
Claim 11
Dependent Claim
122 words
A fluid pump means comprising: a. a duct substantially cylindrical in form internally and having a plurality of internal impeller blades attached thereto to rotate therewith and adapted for axial movement of fluid, said impeller blades disposed to a substantial degree axially within said duct; b. a streamlined centerbody within said duct; c. said impeller blades being substantially similar, positioned on sides of said duct at oppositely disposed angles, fixed to said centerbody, and support said centerbody, said centerbody turning with said duct in operation; d. an inlet to and an outlet from said duct having means to couple same with a fluid medium; and e. a means to couple said duct with a power means adapted to axially rotate said duct.
Claim 12
Dependent Claim
98 words
A fluid pump as described in claim 9, wherein: said means to couple said duct with said fluid medium has, a. a bearing member around said duct to hold same substantially in line with a conduit connecting said fluid medium and support for axial rotation of said duct; b. a seal member around said duct to retain the fluid within said duct and conduit; c. a flow straightening member within the portion of said conduit connecting said duct and said fluid medium; and d. said inlet to and outlet from said duct both having said flow straightening member.
Claim 13
Dependent Claim
101 words
A fluid pump as described in claim 9, wherein there is a means to remotely couple said duct with a power means adapted to axially rotate said duct, a. said power means comprising one selected from the group consisting of an engine, motor, and turbine; b. said duct having an extended flange member therearound adapted to receive a connecting device; c. said power means having a hub member attached to its output member adapted to receive said connecting device; and d. said flange member of said duct and said hub of said power means connected by said connecting device encircling both.
Claim 14
Dependent Claim
103 words
A fluid pump as described in claim 9, wherein there is a means to directly couple said duct with a power means adapted to axially rotate said duct, a. said power means comprising one selected from the group consisting of a motor, engine, and turbine; b. said duct having an extended flange member therearound adapted with gearing to transmit rolling motion; c. said power means having a hub member attached to its outPut member adapted with gearing to transmit rolling motion; and d. said flange member of said duct and said hub member of said power means operably positioned to contact one another.
Claim 15
Dependent Claim
71 words
A fluid pump as described in claim 9, wherein there is a means to integrally couple said duct means with a power means adapted to axially rotate said duct, a. said power means being selected from the group consisting of a motor, pump, and turbine; and b. said power means having a passageway therethrough on the axis of the driving member operable to receive, retain, attach and rotate axially said duct.
Claim 16
Dependent Claim
51 words
A fluid pump as described in claim 9, wherein: said duct having internal impeller blade means has means to rotatably couple same with said fluid medium has, a. a plurality of rotatable ducts like said duct connected in a series fluid circuit; and b. said ducts are rotatable in opposite directions.
Claim 17
Dependent Claim
89 words
A pump as described in claim 9, wherein: a. said impeller blades are tapered from a thicker portion adjacent the duct wall to a thinner edge portion and portion attaching said centerbody; b. said impeller blades are of a general semieliptical shape, helical in contour and have a smooth curvilinear edge which joins said duct wall and said centerbody; and c. said centerbody is generally cylindrical in form and tapered to a cone shape on both ends having points aligned with the axis of said duct and said centerbody.
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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) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |