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Pet Toilet-Like Water Disk and Food Storage
One pet-friendly inventor patented "a device for watering pets, e.g., a dog or cat." The device, he helpfully noted, "has the general shape of a toilet."
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| Number | Title | Issue Date |
| 7326036 | Helicopter rotor transmission assembly A helicopter rotor transmission assembly for translating motion of a drive shaft driven by a helicopter engine into rotary motion of a helicopter rotor mast that carries rotor blades. The transmission assembly includes a fixed outer housing, an inner housing carried... | 02/05/2008 |
| 7320629 | Steering device for small watercraft In a steering device for a small watercraft that has at least two outboard motors which propulsive directions and propulsive forces are individually controllable. The steering device can have a steering wheel that can be inclined relative to an axis of a steering sh... | 01/22/2008 |
| 7178758 | Propellers and propeller related vehicles A propeller related vehicle in accordance with one embodiment of the present invention is described as a helicopter having an airframe housing a motor mechanism for powering a main propeller attached to a main drive shaft that extends vertically through the airframe... | 02/20/2007 |
| 7137786 | Tilting transmission gearbox comprising a pivoting connection with plain bearings A transmission gearbox (1) has a casing (2) that tilts around a tilting axis (B—B) via two bearings (19). Each of the bearings includes: a fixed part (20) having a sleeve (20a); and a trunnion (21a) which bel... | 11/21/2006 |
| 7089806 | Device and method for measuring torque on an electric motor A device for measuring torque on an electric motor, which has a first motor portion and a second motor portion, which are rotatable in relation to each other, is proposed, the device comprising a rotatable holding plate for receiving the first motor portion, by mean... | 08/15/2006 |
| 7037072 | Rotor head for a rotary-wing aircraft A preferred embodiment of a rotor head for a rotary-wing aircraft having a plurality of rotor blades and a drive shaft includes a gimbal mechanically coupled to the drive shaft so that the gimbal rotates with the drive shaft, and a hub pivotally coupled to the gimba... | 05/02/2006 |
| 6979175 | Downstream wind turbine A downstream wind turbine for converting wind energy into electrical energy. In a preferred embodiment the downstream wind turbine adapted to respond to high winds and gyroscopic precession. The downstream wind turbine comprises a support tower; a yaw bearing attach... | 12/27/2005 |
| 6908284 | Fan attachment with dynamic out-of-balance equalization The invention is based on an axial fan with a hub region (4, 27) for connecting the axial fan with a driven shaft (20) of an electrical drive (21), whereby the axial fan is statically balanced by means of a balancing weight (26). A flexur... | 06/21/2005 |
| 6695254 | Rotary-wing aircraft rotor with constant velocity drive A tilting rotor of a convertible aircraft comprises, between the mast and the hub, a constant velocity drive mechanism and pivoting arrangement comprising two gimbals, each of which is driven by the mast and pivots about one respectively of two diametral ... | 02/24/2004 |
| 6634861 | Power plant for propeller aircraft A power plant for propeller aircraft has two propulsion devices, each having a propeller, an engine for powering the propeller, and a gear transmission interposed between the engine and the propeller. The transmission has a power input shaft connected dir... | 10/21/2003 |
| 6607357 | Aircraft constant-velocity transmission rotor An aircraft rotor having a drive shaft, a number of blades extending substantially radially with respect to the shaft, and a constant-velocity transmission connecting the blades to the shaft; the transmission having a hub supported adjustably about a fixe... | 08/19/2003 |
| 6164915 | Simplified anti-vibration suspension device for a helicopter The anti-vibration suspension device includes at least three diagonal bars each articulated on the transmission box and on the structure by a rigid lever supporting a damping weight itself articulated to at least pivot on this structure, and, for each dia... | 12/26/2000 |
| 6082968 | Centrifugally activated variable damper assembly A centrifugally activated variable damper assembly for a stopped-rotor aircraft is disclosed for adjusting dampening level of teetering motions produced by the rotors during the in-flight conversion process from rotary-wing to fixed-wing flight, or vise v... | 07/04/2000 |
| 5853145 | Rotor head for rotary wing aircraft A flexible beam rotor assembly for an aircraft includes a rotor spar having an axis of rotation and a hole through which the axis of rotation passes. A spindle has a teetering connection to the rotor spar, the teetering connection having a teetering axis ... | 12/29/1998 |
| 5381988 | Tethered model gyroglider A tethered model gyroglider having a fuselage, a rotor support extending upwardly from the fuselage, and a unitary two-bladed rotor rotatably mounted onto the rotor support. A teetering mechanism permits the rotor to pivot about an axis proximate the cent... | 01/17/1995 |
| 5304036 | Autogyro aircraft An autogyro aircraft has freewheeling rotor blades that provide lift. A separate pusher propeller provides forward thrust. The rotor system (20) has a collective arm (30) as a control for selectively setting and maintaining a tension force on a collective... | 04/19/1994 |
| 5244346 | Portable wind machine A portable wind machine comprising a vehicle movable along the ground and a support carried by the vehicle and extending upwardly substantially above the vehicle. A transverse member is coupled to the support at a location substantially above the vehicle,... | 09/14/1993 |
| 5165854 | Mechanism for controlling pitch change in helicopter blades Mechanism for controlling pitch changes in helicopter blades, related to the helicopter mast and connected to a lever assembly mounted into the structure, having a pair of command arms, the assembly comprising first and second bars, related by rocker arms... | 11/24/1992 |
| 5137228 | Rotary wing with torsionally flexible blades A controllable lifting rotary wing for an aircraft wherein each rotor blade is of torsionally flexible construction and control may be accomplished by twisting the rotor blades. The root end of each blade is mounted to a central hub by means which allow b... | 08/11/1992 |
| 4913411 | High-capacity elastomeric combination journal-thrust bearing A high-capacity elastomeric combination journal-thrust bearing comprises at least one encapsulated lobe. The encapsulated lobe comprises an outer tubular member having a first ring joined along substantially all of its outer periphery to the inner periphe... | 04/03/1990 |
| 4881874 | Tail rotor A helicopter tail rotor (10, 130) includes a drive mast (12) having an axis of rotation (14). A first blade pair (20) is mounted for rotation about the drive mast (12). The first blade pair (20) includes a pitch change axis (54) perpendicularly disposed t... | 11/21/1989 |
| 4877375 | Drive shaft and rotor hub for helicopter flexible rotor system A rotor system according to this invention includes a structurally flexible rotor shaft for transmitting rotor torque and other rotor loads to a rotor hub. The rotor hub is adapted to have rotor blades mounted thereon and is mounted by an elastomeric sphe... | 10/31/1989 |
| 4838761 | Methods and apparatus for preventing or retarding fruit and vegetable freezing Apparatus is provided for protecting crops such as fruit tree groves from frost damage in the form of a vertical tower fixed to the earth against gyration, a rotor on top with two airfoil blades extending upward at a conical angle and drive means drivingl... | 06/13/1989 |
| 4824326 | Autogyro An autogyro has rotor blades carried by a rotor head mounted on a support member (10) rotatable about a pitch axis (18) and independently rotatable about a roll axis (22) for control of the autogyro in pitch and roll respectively. The pitch and roll axes ... | 04/25/1989 |
| 4792281 | Wind turbine pitch control hub In a variable pitch wind turbine system, pitch angle is determined by a pneumatically pressurized hydraulic actuator connected between crank arms on the blade pitch axles. The hydraulic line extends coaxially through the rotor drive shaft via a rotary uni... | 12/20/1988 |
| 4759514 | Tail rotor yaw position control for a helicopter A yaw rate stabilizer for the tail rotor of a helicopter includes a tail rotor shaft rotatably supporting a tail rotor on which rotor blades are radially mounted to develop a lift force directed substantially horizontal and transverse to the longitudinal ... | 07/26/1988 |
| 4759689 | Bladed aircraft rotor with flexible blade mountings A two-bladed aircraft rotor is disclosed having blades mounted for freedom of blade motions, at least in the flapping sense and in the pitch-change sense, with the blades driven by flexible bellows.... | 07/26/1988 |
| 4754958 | Motion snubber A motion snubber comprises layers of elastomeric and substantially inextensible material stacked one on top of the other between a base and mounting plate, and is characterized by a rigid restraining pin disposed in a bore within the stack so as to restra... | 07/05/1988 |
| 4755106 | Balance-bar hub for a twin blade rotor The invention provides a balance bar twin blade hub. A beam is formed of a tube made from a composite material of evolutive form whose section is cylindrical at its end on the blade side and progressively elliptical as far as its central connection part. ... | 07/05/1988 |
| 4741672 | Collective pitch change system for teter-bar type gyroplane rotary wing aircraft A collective pitch change system for gyroplane rotary wing aircraft is provided. The system is particularly adapted for teter-bar rotors and is simple and direct. The system can change the blade pitch while the rotor is rotating to permit jump take-offs.... | 05/03/1988 |
| 4737074 | Wear resistant hub for wind machines A one piece fan blade for a wind machine is sandwiched between a hub and a plate, the fan blade and the hub and is secured thereto by a teeter pin extending through the bore from opposed passageways in the hub. The shaft is centered in the bore of the hub... | 04/12/1988 |
| 4729753 | Constant velocity elastomeric bearing joint A constant velocity joint (10) is provided specifically for connecting a yoke (14) to a mast (12) in a helicopter and more generally (200) for interconnecting a first shaft (202) to a second shaft (204) for bidirectional drive. The constant velocity joint... | 03/08/1988 |
| 4720059 | High speed helicopter A high speed helicopter, ideally suited for use with rotors which are tip propelled, has an offset flapping hub mounted on a tiltable mast which is located a substantial distance off to the retreading blade side of the fuselage of the helicopter. This cau... | 01/19/1988 |
| 4710055 | Riding-type multiple trowel machine A riding-type surface working machine includes a pair of rotors each of which carries a plurality of trowels or surface working members. Each rotor includes a transmission unit and power from the engine is transmitted through each transmission unit to rot... | 12/01/1987 |
| 4708591 | Bladed aircraft rotor with flexible blade mountings A bladed aircraft rotor is disclosed having blades mounted by means of flexible devices providing freedom for blade motions, at least in the flapping sense and in the pitch-change sense, without employment of flapping or pitch bearings or pivots, the roto... | 11/24/1987 |
| 4702437 | Electric air-driven helicopter A helicopter has a low profile electric motor mounted in each of the rotor blades to drive a cross-flow fan which draws air in through a slot at the leading edge of the blade and forces it out through an opposing slot adjacent the trailing edge of the bla... | 10/27/1987 |
| 4695227 | All composite, constant speed universal joint for use in a shaft driven tiltable main rotor for a helicopter A universal joint for use in a pitch cone rotor system in a helicopter is comprised of crossed lift beams, one beam of which is coupled to the rotor hub and the other beam of which is coupled to the driven rotor shaft. The two crossed lift beams are coupl... | 09/22/1987 |
| 4653705 | Autogyro with auxiliary rotor drive An improved autogyro including a main airframe having a main engine and pusher propeller as customarily applied in autogyros, and a lifting rotor having an auxiliary drive for the lifting rotor for tapping a minor portion of power from the main propulsive... | 03/31/1987 |
| 4595337 | Hub for wind machines A one piece fan blade for a wind machine is sandwiched between a hub and a plate. A rotatable shaft penetrably engages a bore extending through the plate, the fan blade and the hub and is secured thereto by a teeter pin extending through the bore from opp... | 06/17/1986 |
| 4580945 | Helicopter gimbal rotor Rotor tilt is permitted by two spherical elastomeric bearings, one above a hub member and one below, that have coincident centers at a tilt point (P) on the rotorshaft axis which is below the rotor plane. Positive rotor thrust is reacted by the upper bear... | 04/08/1986 |
