Quotables
"Without question, the greatest invention in the history of mankind is beer. Oh, I grant you that the wheel was also a fine invention, but the wheel does not go nearly as well with pizza."
Dave Barry
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7658594 | Wind turbine, hydraulic system, air bleed system and method of controlling at least two wind turbine blades The invention relates to a wind turbine having rotating means including at least two wind turbine blades which are turnable around the longitudinal axis of said blades, and a wind turbine hub connecting said at least two wind turbine blades with at least one shaft. ... | 02/09/2010 |
| 7172391 | Propeller actuation system An auxiliary tank is filled by a pitch control system, which enables the size of the auxiliary tank to be reduced. ... | 02/06/2007 |
| 7124662 | Reversible driving apparatus for PCU pumps An accessory driving apparatus for an aircraft system is connected to an accessory unit to be driven, such as a PCU pump. A gear set for transferring rotational power from the driving shaft to the driven shaft is provided for selective arrangement in first and secon... | 10/24/2006 |
| 6981844 | Cyclic actuation system for a controllable pitch propeller and a method of providing aircraft control therewith A propeller control generates a once per revolution (1P) blade thrust variation through cyclic pitch of rigidly mounted non-flapping propeller blades. The resultant shaft bending moment is used to provide aircraft attitude control. Axial translation of a pitch chang... | 01/03/2006 |
| 5391055 | Propeller pitch change mechanism with impulse turbines The pitch of either a fan or propeller driven by a gas turbine engine is changed by utilizing a pair of impulse turbines interfacing between the stationary and rotating portion of the fan or propeller and utilizing a servo control responding to a desired ... | 02/21/1995 |
| 5028207 | Arrangement for adjusting the rotor blades of a propfan turboprop engine An arrangement for the adjusting of rotor blades of a propfan turboprop engine equipped with two counter-rotating propfan rotors has a number of double-toothed planet wheels which are fastened in a rotatably disposed web. The web is supported on the side ... | 07/02/1991 |
| 4946354 | Hydraulic device for individual control of pitch of a rotor blade A hydraulic device for the individual control of the pitch of a helicopter rotor blade by a rotary hydraulic jack, the stator vanes of which are integral with a sleeve fitted on the hub. The jack rotor carries rotor vanes movable relative to the stator va... | 08/07/1990 |
| 3976397 | Rotary actuators suitable for bladed rotors A rotary actuator, suitable for use with rotors having flow-varying blading, for effecting adjustment of the blading, including two relatively-rotatable and co-axially-disposed main actuator components. Each of the components carries a respective abutment... | 08/24/1976 |
| 3970410 | Rotary actuators suitable for bladed rotors A rotary actuator includes two relatively-rotatable main actuator components, abutment means being carried by the first component and displaceable axially with respect thereto, and further abutment means being carried by the second component. Holding mean... | 07/20/1976 |
| 3942911 | Bladed rotors A bladed rotor including a hub which carries, so as to be rotatable therewith, a liquid reservoir, at least one pump operable upon rotation of the rotor, a single liquid-pressure-operable vane-type actuator for adjusting the blades of the rotor to vary fl... | 03/09/1976 |
