Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
James J. Duffy Patents
Inventor:
Duffy; James J.
Address:
Winfield, IL
No. of patents:
33
Patents:




Patent Number Title Of Patent Date Issued
6813863 Automobile protection system November 9, 2004
The automobile protection system for a multiple car garage comprises a cushion positioned between parking spaces of the garage, which cushion is suspended and sized to extend at least along the length of doors of cars parked in the spaces to keep the door of one car from striking the
5392875 Hydraulic reaction variable assist power steering system February 28, 1995
A power steering system for automobiles comprising a rotary, driver-operated valve which is adapted to control pressure distribution from a steering pump to power-assist fluid motors and to a set of transversely disposed fluid pressure reaction pistons and which responds to a reactio
5307895 Hydraulic reaction variable assist power steering control hydraulic "detent" May 3, 1994
A power steering system for an automotive vehicle having a rotary steering valve comprising an inner valve member and a surrounding valve sleeve member, the valve members having cooperating valve lands that control pressure distribution to a fluid motor that effects a steering assist, th
5297647 Variable assist power steering gear with hydraulic reaction controls March 29, 1994
The invention comprises a steering gear for an automotive vehicle having a rotary valve mechanism that controls pressure distribution to a fluid motor that establishes a power assist during steering maneuvers, pressure reaction pistons being provided to establish a resistance to relative
5224564 Hydrostatic power steering system July 6, 1993
A power steering system for controlling the dirigible wheels of an automotive vehicle includes a pump that develops a pressure in an accumulator, the pump being deactivated when accumulator pressure reaches a predetermined range and being activated when the accumulator pressure is lo
5165702 Seal ring assembly for high pressure valves November 24, 1992
A seal ring located in a seal ring groove of a valve member of a rotary valve assembly has an outer seal surface in sealing engagement with a surrounding valve housing and is adapted to isolate pressure passages communicating with the valve assembly regardless of the direction of the
5029513 Variable-orifice, servo-solenoid valve for a variable-assist power steering system July 9, 1991
A power steering system for a wheeled vehicle comprising a fluid motor connected to dirigible wheels of the vehicle, a power steering pump and a steering valve structure situated in flow delivery and flow return passages that connect the pump with the fluid motor, the valve structure
4926956 Electronically controlled steering system May 22, 1990
A power steering gear mechanism for vehicles with a variable assist characteristic having primary and secondary steering valve portions, the primary portion controlling pressure in a power steering fluid motor, a steering control valve that controls the magnitude of the steering assist
4877099 Electronically controlled variable assist power steering system October 31, 1989
A power steering gear for a vehicle capable of providing a variable degree of power assistance to supplement manual steering effort wherein the variable assist is achieved by controlling directly the magnitude of the steering pressure made available to a pressure operated motor by a vehi
4828067 Electronic power assist control steering system May 9, 1989
A variable assist power steering gear mechanism for vehicles having primary and secondary steering valve portions, the primary portion controlling pressure in a power steering fluid motor, a steering pressure valve that controls the magnitude of the steering pressure as a function of veh
4760892 Variable assist power steering system using electronic pressure control August 2, 1988
A power steering gear for a vehicle capable of providing a variable degree of power assistance to supplement manual steering effort wherein the variable assist is achieved by controlling directly the magnitude of the steering pressure made available to a pressure operated motor by a vehi
4742883 Pinion ball bearings with preload adjustment for power rack and pinion steering gears May 10, 1988
A rack and pinion power steering gear mechanism having a driving pinion connected to a driver controlled steering shaft through a torsion rod, a gear rack engageable with the pinion and connected to steering gear linkage members, a fluid motor having a movable piston connected to the
4714413 Speed sensitive power steering pump unload valve December 22, 1987
A positive displacement pump for a vehicle power steering system comprising a rotor (42) rotatable in and cooperating with a stator (20) to define a pump cavity (52), (54), inlet and outlet ports (56), (58) and (34), (36) communicating with the pump cavity and a flow control valve (96) l
4609331 Speed sensitive power steering valve September 2, 1986
A positive displacement pump for a vehicle power steering system comprising a rotor (42) rotatable in and cooperating with a stator (20) to define a pump cavity (52), (54), inlet and outlet ports (56), (58) and (34), (36) communicating with the pump cavity and a flow control valve (96) l
4586582 Power steering system with vehicle speed-sensitive flow May 6, 1986
A power steering gear mechanism for an automotive vehicle comprising a fluid motor connected drivably to a vehicle steering gear linkage and a control valve for directing motor actuating fluid pressure to the fluid motor from a power steering pump, the control valve including a vehicle
4570735 Dual rotary valve for variable assist power steering gear for automotive vehicles February 18, 1986
A power steering gear mechanism for an automotive vehicle having a pressure operated vehicle steering mechanism controlled by a rotary valve with primary and secondary valve portions wherein the primary valve portion develops a fast-rising steering pressure characteristic for incremental
4561521 Variable assist power steering system December 31, 1985
A power steering gear mechanism for an automotive vehicle having a pressure operated vehicle steering mechanism controlled by a rotary valve with primary and secondary valve portions wherein the primary valve portion develops a fast-rising steering pressure characteristic for incremental
4516471 Power steering valve with chamfered lands May 14, 1985
A power steering gear for controlling the dirigible wheels of an automotive vehicle comprising steering gear elements and a fluid motor adapted to drive the steering gear elements to supplement the manual steering effort comprising a rotary valve assembly for controlling distribution of
4504611 Flame retardant polyamide compositions March 12, 1985
Polyamide compositions having improved flame retardant properties and arc tracking resistance comprises, in percent by weight, about 35 to about 76 percent polyamide; about 6 to about 10 percent zinc borate; about 10 to about 15 percent melamine cyanurate; 0 to about 35 percent glass fib
4485883 Power steering system with vehicle speed-sensitive flow December 4, 1984
A power steering gear mechanism for an automotive vehicle comprising a fluid motor connected drivably to a vehicle steering gear linkage and a control valve for directing motor actuating fluid pressure to the fluid motor from a power steering pump, the control valve including a bypass
4434866 Speed-sensitive power steering system March 6, 1984
A power steering mechanism for controlling the dirigible wheels of an automotive vehicle comprising a fluid motor that provides a power assist to manual steering effort applied to the steering gear mechanism wherein a hydraulic reaction mechanism (44) applies a reaction torque to the dri
4378030 Power steering gear mechanism with rotary control valve March 29, 1983
A power steering gear mechanism comprising a pinion adapted to be connected drivably to the steering gear linkage for a road vehicle, a pressure cylinder, a double acting piston movable in said cylinder and defining therewith a pair of pressure chambers, said piston being connected to or
4135436 Two-stage flow control valve for a power steering system January 23, 1979
A power steering pump flow and pressure control valve comprising a valve spool located on the high pressure side of the pump and on the upstream side of the vehicle steering gear. The valve includes a spool slidably situated in a valve chamber and a metering pin that is moved relative to
4063490 Rack and pinion power steering gear mechanism December 20, 1977
A rack and pinion steering gear mechanism for use with the dirigible wheels of a road vehicle comprising a steering gear pinion adapted to be connected to a vehicle steering linkage, a power rack engageable with the pinion and adapted for reciprocating linear motion, said rack including
4053450 Dialkyl alkyl and cyclic phosphoramidomethyl phosphonates October 11, 1977
New compounds are disclosed of the formula: ##STR1## wherein R' is phenyl, lower alkenyl and halogen substituted and unsubstituted lower alkyl of 1-6 carbon atoms, m is an integer from 1-2 wherein when m is 2, R is alkoxy of 1-8 carbon atoms and when m is 1, R is alkylene dioxy o
4034141 Brominated phosphoramidates July 5, 1977
Brominated phosphoramidates of the structure ##STR1## wherein R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen, chloro, bromo, and chloro or bromo substituted alkyl of from 1 to 8 carbon atoms;R.sup.3 is selected from the group consisting of hydrog
4026808 Flame retardant textile finishes May 31, 1977
Normally flammable textile materials are rendered flame retardant by the intimate association therewith of a flame retarding amount of a composition comprising a phosphorus containing N-hydroxy-methyl amide and tetrakis(hydroxymethyl) phosphonium chloride.
4018560 Dialkyl alkyl and cyclic phosphoramidomethyl phosphonates April 19, 1977
New compounds are disclosed of the formula: ##STR1## wherein R' is phenyl, lower alkenyl and halogen substituted and unsubstituted lower alkyl of 1-6 carbon atoms, m is an integer from 1-2 wherein when m is 2, R is alkoxy of 1-8 carbon atoms and when m is 1, R is alkylene dioxy o
4007236 Brominated phosphoramidates February 8, 1977
Brominated phosphoramidates of the structure ##STR1## wherein R.sup.1 and R.sup.2 are independently selected from the group consisting of hydrogen, chloro, bromo, and chloro or bromo substituted alkyl of from 1 to 8 carbon atoms;R.sup.3 is selected from the group consisting of hydrog
4000114 Fire retardant polymer compositions with improved physical properties December 28, 1976
High impact thermoplastic polymers such as the styrenic based polymers, ABS and high impact polystyrene, are rendered fire retardant by the incorporation in the polymer of a mixture of a diadduct of hexahalocyclopentadiene and decabromodiphenyl oxide. The fire retardance of the compo
3976620 Phosphorus containing amides flame retardants August 24, 1976
New compounds are disclosed of the formula: ##EQU1## wherein R' is selected from the group consisting of phenyl, lower alkenyl and halogen substituted and unsubstituted lower alkyl of 1-6 carbon atoms, y is an integer from 1-2 provided that when y is 1, R is selected from the gro
3959551 Dialkyl alkyl and aromatic sulfonamidomethyl phosphonates May 25, 1976
New compounds are disclosed of the formula: ##EQU1## wherein R is selected from the group consisting of lower alkyl of 1-6 carbon atoms, phenyl and alkyl substituted phenyl and R' is selected from the group consisting of phenyl, lower alkenyl and halogen substituted and unsubstit
3935162 Dialkyl aromatic amidomethyl phosphonate flame retardants January 27, 1976
New flame retardant materials are disclosed having applied thereto compounds of the formula: ##SPC1##Wherein R is selected from the group consisting of phenyl, lower alkenyl and halogen substituted and unsubstituted lower alkyl of 1-6 carbon atoms, X is selected from the group consis


 
 
  Recently Added Patents
Battery monitor
Vascular compression device
Image processing device, method, program and recording medium recording the program
Imaging lens for infrared cameras
Method and apparatus for aggressive compression, storage and verification of the dynamics of handwritten signature signals
Deep slot magazine storage library
Rear body of a golf car
  Randomly Featured Patents
Contact for strip line switch
Hydraulic drive for a high-voltage switchgear
Thrust-type film cassette assembly
Electrode for optical waveguide element and method of forming the same
End mill cutting tool and indexable insert therefor
Antihypertensive diuretic combination composition and associated method
Carbon for a lithium secondary battery, lithium secondary battery, and manufacturing methods therefor
Reconfigurable toy vehicle
Lifting hooks
Implantable biosensor and methods of use thereof