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Class 474/104 - Fluid motor


Subclass of Class 474 - Endless belt power transmission systems or components
Definition: Subject matter wherein force for actuating said device is
No. of patents: 26
Last issue date: 11/29/2011


NumberTitleIssue Date
8066598Chain tensioning apparatus with temperature-based leakdown
An apparatus for tensioning a chain is provided that compensates for the affect of temperature on oil viscosity by providing, in addition to a continuously open oil leakage path, an additional leakage path open only at lower temperatures when oil is more viscous and...
11/29/2011
7338400Motor belt tensioning construction for an air handling unit
A belt tensioning system for a motor and a belt-driven blower each secured inside an air handling unit. The blower rotatably carries a first shaft, a first sheave and a bladed arrangement being secured to the first shaft. A second sheave secured to a second shaft is...
03/04/2008
6957735Pneumatic spinner drive tensioning assembly
An pneumatic tensioner apparatus is disclosed, the apparatus including: a main drive belt; a chuck assembly, suspended from the main drive belt, having a spinning member and a drive contact portion; a first frictional drive belt in a first track, the first frictiona...
10/25/2005
6312562Traveling screen system
A traveling screen system has a traveling screen guided about a multiplicity of support and guide rollers. A scanning device scans a transverse position of the traveling screen and an adjusting device adjusts the angular orientation of at least one of the...
11/06/2001
6135906Gas actuating device with an exhaust passage that prevents contamination of an actuating member
A gas actuating device includes a housing having a gas applying chamber, an actuator chamber and a gas applying passage for communicating gas from the gas applying chamber to the actuator chamber. An actuating member having a first side and a second side ...
10/24/2000
6066057Gas actuated derailleur having an indexing mechanism for setting a chain guide in a plurality of fixed positions
A gas actuated derailleur for a bicycle includes a base member, a movable member supporting a chain guide, a coupling mechanism coupling the base member to the movable member so that the movable member moves relative to the base member, and an actuation m...
05/23/2000
6012999Hydraulically-operated bicycle shifting system with positive pressure actuation
A family of new bicycle shifting systems incorporate improved derailleur designs that are controlled by sealed hydraulic actuators. The shifting systems (i) a hydraulically-actuated, manually-powered front and rear derailleur shifting system, (ii) a hydra...
01/11/2000
5653331Paper roll guide
The invention is directed to a guide connectable to a paper roll in a paper machine for moving an end of the roll in a direction transverse to a longitudinal axis of the roll. The guide includes a roll mounting frame connectable to the roll, a support fra...
08/05/1997
5379932Tensioning apparatus for a web threading endless rope
A compact rope stretcher maintains the tension in an endless rope used for threading a web in a papermaking machine and includes an elongated H-beam having a flange engaged by guide wheels supporting a pair of separate carriages. The carriages support cor...
01/10/1995
5377892Fluid pressure tensioning apparatus for a web threading endless rope
A compact rope stretcher maintains the tension in an endless rope used for threading a web in a papermaking machine and includes a beam having a flange forming a track which is engaged by guide wheels supporting a pair of separate carriages. The carriages...
01/03/1995
5375753Tensioning apparatus for a web threading endless rope
A compact rope stretcher maintains the tension in an endless rope used for threading a web in a papermaking machine and includes a beam having parallel flanges forming tracks which are engaged by guide wheels supporting separate carriages. The carriages s...
12/27/1994
5333578Four-cycle engine
A motorcycle engine having an exhaust passage air introduction system. Each cylinder includes two exhaust passages which are joined at a point displaced from the engine. Air is introduced into one of the exhaust passages of the two so as to more fully com...
08/02/1994
5263623Tensioning apparatus for a web threading endless rope
A compact rope stretcher maintains the tension in an endless rope used for threading a web in a papermaking machine and includes an elongated H-beam having a flange engaged by guide wheels supporting a pair of separate carriages. The carriages support cor...
11/23/1993
5090946Tensioner with replaceable filter in oil path
A fluid tensioner for use with power transmission chains such as automotive camshaft drive chains users engine lubricating oil as its operating fluid, and includes a built-in oil filter for removing foreign matter which might interfere with proper tension...
02/25/1992
5073149Diaphragm seal type tensioner
In a fluid tensioner for a camshaft drive belt, a piston rod is sealed by a flexible diaphragm having an enlarged inner end clamped in a conforming groove in the piston rod by a spring clamp. This maintains the inner end of the diaphragm at a fixed positi...
12/17/1991
5069027Tangential belt drive for spinning or twisting machines
In the case of a tangential belt drive for spinning or twisting machines having several rotating elements driven by a common tangential belt and having belt guiding members, which can be adjusted for correcting the moving direction of the tangential belt,...
12/03/1991
4966653Apparatus for controlling a moving band
The invention relates to an apparatus for controlling the passage of a moving band (1) or the like in a paper machine or the like. The apparatus comprises a roll (2) mounted at one end turnably with respect to a machine body (3) while the other end is mou...
10/30/1990
4761155Tensioner for wrapping connector transmission device for internal combustion engine
A tensioner acting on and allowing an endless transmission belt, stretched between a driving wheel and driven wheels supported on the body of an internal combustion engine, to run under a constant tension, wherein an oscillating lever supports a tension p...
08/02/1988
4674996Tensioner device for wrapping connector driving device in internal combustion engine
A tensioner device for applying a predetermined tension force to a transmission belt extended between a driving wheel and a driven wheel supported on the body of an internal combustion engine, including a hydraulic automatic adjuster which comprises a plu...
06/23/1987
4354595Apparatus and method for maintaining positional alignment between two spaced-apart points on a moveable member
The invention relates to a method and apparatus for maintaining relative positional alignment between two spaced-apart points on a moveable member, such as a rotating axle on which is mounted a conveyor belt pulley. The invention comprises a hydraulic pum...
10/19/1982
4189223Steering and supporting system for a photoconductive belt
An apparatus in which an endless belt is at least partially supported on the fluid film in a predetermined path of movement. A pneumatic system, responsive to a deviation of the belt from the path of movement, restrains the movement of the belt to the pre...
02/19/1980
4175689Apparatus for centering strips in rolling mills and the like
A strip control system and steering roll which may be utilized in a rolling mill. The steering roll, having a semi-cylindrical outer shell, contacts a strip or web of material being processed. A degree of axial freedom is provided each half of the outer s...
11/27/1979
4173904Apparatus for automatically centering an endless band trained over two rolls
In an apparatus wherein an endless band is trained over a stationary guide roll and a stretching roll, and a nut-and-spindle mechanism at the ends of the stretching roll can displace the stretching roll in a plane defined by the axes of the rolls when the...
11/13/1979
4140574Web spreader and guide
A web spreading and guiding device to maintain a running paper sheet making foraminous web comprising a wire or pick-up felt transversely taut and straight running in a papermaking machine, has a pair of free running pneumatic tires having their treads in...
02/20/1979
4083206Washing machines and rinsing machines
A rinsing machine suitable for rinsing a washable dust mat is provided with first squeeze means, pressure means downstream of the first squeeze means and at least one intermediate squeeze means between the first squeeze means and the pressure means. Rinsi...
04/11/1978
4051742Arrangement for tensioning and guiding the belts of a cellular plastic forming machine
An automatic-tensioning arrangement for roller driven belts of a cellular plastic forming machine is described. Sensor means are provided for detecting lateral movement of the belts on the support or drive rollers thereof and for generating a control sign...
10/04/1977
 
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