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Class Information
Number: 416/171
Name: Fluid reaction surfaces (i.e., impellers) > Specific drive or transmission means > Impeller driven by fluid motor
Description: Apparatus wherein the prime mover means for driving the impeller comprises a device which converts fluid energy to mechanical energy.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7290987 |
Impeller hub for torque converter |
Nov. 6, 2007 |
| 6852025 |
Vertical ventilator for outdoors and/or indoors |
Feb. 8, 2005 |
| 6786150 |
Printing press roll having auxiliary rotation capability |
Sep. 7, 2004 |
| 6257498 |
Method and apparatus for an agricultural air handler |
Jul. 10, 2001 |
| 5975848 |
Ceiling fan having rotary inner housing |
Nov. 2, 1999 |
| RE33347 |
Air-driven ceiling fan |
Sep. 25, 1990 |
| 4936748 |
Auxiliary power source in an unducted fan gas turbine engine |
Jun. 26, 1990 |
| 4916894 |
High bypass turbofan engine having a partially geared fan drive turbine |
Apr. 17, 1990 |
| 4915586 |
Propfan blade attachment |
Apr. 10, 1990 |
| 4892269 |
Spinner ducted exhaust for pusher turboprop engines |
Jan. 9, 1990 |
| 4883403 |
Impellers for centrifugal pumps |
Nov. 28, 1989 |
| 4863352 |
Blade carrying means |
Sep. 5, 1989 |
| 4826403 |
Turbine |
May. 2, 1989 |
| 4817382 |
Turboprop propulsion apparatus |
Apr. 4, 1989 |
| 4815273 |
Single propeller turboprop propulsion apparatus |
Mar. 28, 1989 |
| 4809498 |
Gas turbine engine |
Mar. 7, 1989 |
| 4810164 |
Pitch change arrangement for a variable pitch fan |
Mar. 7, 1989 |
| 4796424 |
Intake for a turbopropeller gas turbine engine |
Jan. 10, 1989 |
| 4767271 |
Gas turbine engine power turbine |
Aug. 30, 1988 |
| 4767269 |
Rotor system, particularly a boat propeller system |
Aug. 30, 1988 |
| 4766723 |
Turbofan gas turbine engine and mountings therefore |
Aug. 30, 1988 |
| 4765135 |
Gas turbine engine |
Aug. 23, 1988 |
| 4764313 |
Air driven water circulation mill |
Aug. 16, 1988 |
| 4751816 |
Turbofan gas turbine engine |
Jun. 21, 1988 |
| 4744214 |
Engine modularity |
May. 17, 1988 |
| 4732538 |
Blade hub air scoop |
Mar. 22, 1988 |
| 4704862 |
Ducted prop engine |
Nov. 10, 1987 |
| 4653705 |
Autogyro with auxiliary rotor drive |
Mar. 31, 1987 |
| 4648801 |
Wind turbines |
Mar. 10, 1987 |
| 4623299 |
Driving arrangement for watercraft |
Nov. 18, 1986 |
| 4598632 |
Air-driven ceiling fan |
Jul. 8, 1986 |
| 4592202 |
Thrust augmentor |
Jun. 3, 1986 |
| 4569630 |
Axial piston machine having a control flow fluid line passing through a medial shaft portion |
Feb. 11, 1986 |
| 4488399 |
Propfan aircraft propulsion engine |
Dec. 18, 1984 |
| 4464259 |
Hydraulic horizontal mixer |
Aug. 7, 1984 |
| 4371346 |
System for propulsion of boats by means of winds and streams and for recovery of energy |
Feb. 1, 1983 |
| 4370095 |
Compound coaxial windmill |
Jan. 25, 1983 |
| 4354801 |
Reaction fan with noise suppression |
Oct. 19, 1982 |
| 4292540 |
Wind-powered impeller-mixer |
Sep. 29, 1981 |
| 4276816 |
Wind propelled fan |
Jul. 7, 1981 |
| 4205943 |
Hydro-electric generator |
Jun. 3, 1980 |
| 4184654 |
Rotor aircraft |
Jan. 22, 1980 |
| 4141215 |
Windmill mechanism |
Feb. 27, 1979 |
| 4093155 |
Steam powered tilting engine VTOL airplane |
Jun. 6, 1978 |
| 4074951 |
Wind power converter |
Feb. 21, 1978 |
| 4050849 |
Hydrodynamic transmission for ship propulsion |
Sep. 27, 1977 |
| 4046335 |
Helicopters safety drive |
Sep. 6, 1977 |
| 4030859 |
Floating aerator having means to vary the length of the draft pipe |
Jun. 21, 1977 |
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