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Class 251/250.5 - Mating segments


Subclass of Class 251 - Valves and valve actuation
Definition: Subject matter wherein the gearing includes meshing segments
No. of patents: 28
Last issue date: 03/04/2008


NumberTitleIssue Date
7337806Stepper motor driven proportional fuel metering valve
A low energy stepper motor driven fuel metering valve (FMV) that eliminates the need for a position sensor is provided. The stepper motor rotates a cam that replaces the flapper valve used in conventional systems. The cam rotation increases the gap between the cam a...
03/04/2008
7108599Vehicle air conditioning system having door drive mechanism
A pitch circle radius of a driving side gear of a drive mechanism of an air mix door is continuously and progressively increased from a maximum heating position side part to a maximum cooling position side part. A pitch circle radius of a driven side gear of the dri...
09/19/2006
7025328Damper actuator system
A damper actuator includes a housing and a hub extending through and rotatably coupled to the housing. The actuator is configured to be a side-mount direct coupled actuator. In one embodiment, an external clamp is coupled to the housing and is configured to be attac...
04/11/2006
6793573Air conditioning systems for vehicles and vehicles comprising such air conditioning systems
An air conditioning system for a vehicle includes a first air path formed within an air duct, and a second air path formed within the air duct. The air conditioning system also includes an air mixing damper for adjusting a first amount of air, which flows within the...
09/21/2004
6789617Air mix damper device and vehicle air conditioner
The invention provides an air mixing damper apparatus and an air conditioning apparatus for vehicles where the temperature of discharged air can be changed linearly with respect to the operation of an actuator lever. A rotation speed adjustment mechanism is disposed...
09/14/2004
6776393Torque booster for valve operation
A torque booster for operating a valve during initial opening and closing movements of the valve. The torque booster includes a rotatable valve operating stem, a rotatable operator shaft, a gear reduction unit, and a coupling for temporarily operatively interposing ...
08/17/2004
6364284Throttle valve control device for an internal combustion engine
A throttle valve controller for an internal combustion engine in which a ring gear comprises a center body, a teeth portion, at least one rotation detent portion and at least one contraction detent portion for preventing the ring gear from rotation along ...
04/02/2002
6267352Electronic throttle return mechanism with default and gear backlash control
An electronic throttle control system having a housing 22 with a motor 40, throttle valve 60, gear mechanism 100, and failsafe mechanism 130. A main spring member 150 positioned between the housing 22 and a gear mechanism 104, which in turn is attached to...
07/31/2001
6244564Motor-type damper unit
A motor-type damper unit includes a motor for driving in a single direction, an opened/closed member for reciprocating in an opening direction and a closing direction with a fulcrum shaft serving as a center by a drive force of said motor, an intermittent...
06/12/2001
6173939Electronic throttle control system with two-spring failsafe mechanism
An electronic throttle control system having a housing 22 with a motor 40, throttle valve 60, gear mechanism 100, and failsafe mechanism 130. A spring member 150 attached between the housing 22 and a gear member 104 attached to the throttle valve shaft 62...
01/16/2001
6135415Exhaust gas recirculation assembly
The present invention provides an exhaust gas recirculation assembly. The exhaust gas recirculation assembly includes a single housing having an integrated airflow passage, a recirculated exhaust gas passage, and valve mechanism. The airflow passage is op...
10/24/2000
6031226Integrated ventilation mode and temperature control system for vehicles
A rotary temperature control system for use in controlling the temperature of a blended air stream supplied to a vehicle passenger compartment is combined with a rotary ventilation mode control system in a common housing. The ventilation mode and temperat...
02/29/2000
6009900Gas fitting
The gas fitting contains a supply-pressure shut-off element, a pressure regulator and a pressure gage for the pressure indication in a row, the supply-pressure shut-off element and the pressure regulator being arranged between the pressure gage and the co...
01/04/2000
5881994Variable temperature control system for vehicles
A rotary temperature control system for use in controlling the temperature of a blended air stream supplied to a vehicle passenger compartment includes a manually operable rotary control knob operatively connected with a control pulley that is, in turn, c...
03/16/1999
5809780Hydraulic control valve
A hydraulic control valve has a two position body shifted by rotation. The shaft of the valve body carries a drive wheel segment extending through an arc that corresponds to the shift angle of the valve. A spring is provided to bias, at least in the final...
09/22/1998
5725033Filling system for robot-capable filling of a vehicle with fuel
A filling system for robot-capable filling of a motor vehicle with fuel has a filler nozzle and a tank filler neck, with a docking extension provided with a central opening being provided on the neck on the filling side of the vehicle. The extension is ro...
03/10/1998
5647399Flow control device
A flow control device including first and second flow control members, first and second actuators, and first and second transmission devices wherein both flow control members are adapted for rotation about a common axis. The first flow control member has ...
07/15/1997
5618027Gate valve
A valve comprising a gate closure member which is actuated by a stem that is operatively connected with the valve operator handle at the upper end of the stem and the lower end of the stem connected to a toothed pinion engaging an arcuate toothed rack on ...
04/08/1997
5507469Valve actuator system for initial torque reduction
A system for reducing the initial force required to actuate a valve, preferably a rotary valve, from its fully closed position is disclosed. The system comprises an operating arm fixed to and rotatable with the valve stem. Disposed and rotatable about, bu...
04/16/1996
5435358Fuel tank filler neck closure
A closure for a fuel tank filler neck has a closure cap which is swivel-mounted on the upper side of the said closure and can be opened from the closed position by the effect of force on a lever arm arranged on the far side of the swivel axis. A pawl for ...
07/25/1995
5409194Variable flow electrically controlled valve
A method for controlling a valve including a direct current motor acting upon an aperture adjusting part (3) against the force of elastic means (11) biasing the aperture adjusting part towards a zero flow rest position, comprising the steps of: selecting ...
04/25/1995
5054516Automatic flow control valve
An automatic flow control valve according to the instant invention maintains a constant flow rate despite varying fluid pressure, and employs a dual outer and inner cup construction through which a range of flow rates can be accommodated via a change in t...
10/08/1991
5050638Device for controlling a volumetric rate of flow in a guide tube
In a device for controlling a volumetric rate of flow in a guide tube (1), in particular for controlling the volumetric flow of air in a ventilation system or an air-conditioning plant, an adjusting flap (5) is to be arranged variably, in particular rotat...
09/24/1991
4913398High speed dumping valve apparatus
A high speed water dumping valve apparatus usable attached with respect to a water reservoir which includes a housing with a flow chamber and water inlet and outlet defined therein. A door with a gasket means is adapted to extend over the water inlet for ...
04/03/1990
4741358Liquid level control float valve
A liquid level control float valve which comprises a valve body, an open/close valve disposed in the valve body, the open/close valve being mounted on a gear shaft which extends from the inside of the valve body to the outside of the valve body and on opp...
05/03/1988
4656926Ventilation control unit for motor vehicles
A control unit for setting heating, air conditioning and/or ventilation in otor vehicles is provided. The control unit comprises a body adaptable for insertion into the instrument panel of a motor vehicle, said body having a front panel and a rear carrier ...
04/14/1987
4427023Dry product valve
Method and means for solidifying nuclear waste for permanent disposal are disclosed. A storage container, in the preferred form of a drum or barrel, is charged with a predetermined amount of liquid polymer resin in an uncatalyzed state. Catalyst-containin...
01/24/1984
4352483Differential throttle opening control mechanism
A mechanism for providing differential control of the opening of the throttle valve which controls the amount of air introduced into the induction manifold of an internal combustion engine. The angle of opening of the throttle valve changes with a predete...
10/05/1982
 
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