| Patent Number |
Title Of Patent |
Date Issued |
| T998004 |
Vehicle motor mounting facilitating motor installation |
September 2, 1980 |
| A motor mounting assembly is separable into two portions between the frame and the motor enabling one portion of the mounting assembly to remain resiliently connected to the vehicle frame while the other portion is removed with the motor. Reinstallation of the motor is greatly simplified |
| RE31314 |
Brake drum seal with dual elastomeric legs |
July 19, 1983 |
| A seal (16) is positioned to prevent entry of foreign matter through an annular opening (26) between first and second members (12,14). The first and second members (12,14) are, for example, a stationary backing plate (20) and a rotatable hub (22) of a brake assembly (24) or a rotatable |
| RE31058 |
Seal and seal assembly |
October 19, 1982 |
| A seal (16) has a body (38), a leg (40) and first and second sealing areas (42,44). The seal (16) is used in a seal assembly (10) having first and second members (12,14), such as, for example, a frame portion (20) and steering knuckle (27) of a work vehicle. Apparatus (28) such as bearin |
| D259424 |
Vehicle cab |
June 2, 1981 |
|
| D251727 |
Lift truck instrument panel |
May 1, 1979 |
|
| 4567757 |
Apparatus and method for testing vehicle brakes |
February 4, 1986 |
| The subject brake test apparatus operates in conjunction with a vehicle having a source of power, a traction motor controllably connected to the power source and to at least one vehicle wheel, and a vehicle brake associated with at least one vehicle wheel. An actuator controllably en |
| 4567467 |
Angular rotary position encoder |
January 28, 1986 |
| Information related to the rotary angular position of a steerable wheel portion of an electric vehicle is required for proper control of the vehicle and especially for differential control of the driven wheels of the vehicle. Available rotary position encoders are expensive, prone to |
| 4564085 |
Controlling arrangement |
January 14, 1986 |
| Controlling arrangements of the type used for aligning a load engaging assembly with a load to be lifted tend to be bulky, costly, unable to accurately position the load engaging assembly with the load to be lifted, and unable to accommodate different types of load supporting structures. |
| 4558194 |
Foot pedal switch |
December 10, 1985 |
| Single pedal vehicle speed and direction controls are advantageously applied in industrial vehicles. Available pedals are prone to damage in an industrial environment and require multiple discrete pedal portions for various pedal functions. The instant apparatus provides a simple and |
| 4557343 |
Power steering control apparatus and method |
December 10, 1985 |
| Power assisted steering systems are commonly used on industrial vehicles such as industrial lift trucks. Advantageously, the output of such systems should be responsive to vehicle speed and the systems should be energy efficient. The subject power steering control system includes process |
| 4555651 |
Motor speed control apparatus |
November 26, 1985 |
| Apparatus is provided for controlling increases in the speed of a motor, including a transducer coupled to an accelerator pedal, that generates digital numbers representing motor speed commands, a data processor for receiving the speed commands, generating motor speed limit signals in |
| 4531615 |
High-visibility mast assembly for lift trucks |
July 30, 1985 |
| The mast assembly for a standard lift truck includes a lift system having a centrally-disposed hydraulic cylinder and a pair of chains mounted on the cylinder to selectively raise and lower a movable upright assembly on a fixed upright assembly and a carriage on the movable upright assem |
| 4529919 |
Plugging and plugging override control apparatus |
July 16, 1985 |
| A control system (28) is provided for controlling the supply of power to a motor (12) having an armature (34) and a plugging diode (38) connected across the armature (34), including a circuit (14) for producing direction command signals, a circuit (98) for generating digital motor power |
| 4526251 |
Chain retention device |
July 2, 1985 |
| A retention assembly is disclosed for use with an elongated flexible member (22) such as the lift chain used in a lift truck (10). This assembly consists of a first member (30) affixed to the carriage (28) and having an irregular surface (32) corresponding to the irregular surface (26) o |
| 4523886 |
Container handler with programmed electro-hydraulic control circuit |
June 18, 1985 |
| Container handlers comprise a plurality of double-acting hydraulic cylinders to effect the various side shift, twist lock, tilt, height adjustment, and spread modes of operation. Separate control valves and hoses, entrained over the mast assembly having the attachment thereon, are re |
| 4521885 |
Diagnostic display apparatus |
June 4, 1985 |
| The invention pertains to an apparatus (10) for diagnosing and displaying the condition of various components in an electro-mechanical vehicle or other system. The apparatus (10) includes command signal producing devices (12), control signal receiving devices (14), and means (16) for del |
| 4520986 |
Suspended seat assembly |
June 4, 1985 |
| This invention relates to a suspended seat assembly (10) which eliminates the problems of excessive elevational movement and limited field of use, harsh ride, inability to accommodate a broad range of occupant weights, bulkiness, wear and premature failure, and difficult adjustment. The |
| 4518902 |
Plugging electrical braking control circuit |
May 21, 1985 |
| The invention pertains to a control system (46) for controlling the supply of power to a motor (12) to produce plugging electrical braking and current limit control, including a circuit (60) for controlling the direction of energization of the motor (12), a circuit (88) for generating |
| 4514665 |
Current limit control circuit |
April 30, 1985 |
| Apparatus (10) is provided for controlling current through a motor (12), including a circuit (14) for generating motor speed command data, a circuit (26) for generating a control signal in response to a maximum value of current through the motor (12), a programmable data processor (7 |
| 4511947 |
Coil and coil driver control apparatus |
April 16, 1985 |
| Apparatus (10) for monitors and protects a plurality of contactor coils (14A-E) and coil drivers (16A-E) from damage owing to short circuits, and prevents the concurrent energization of more than a preselected number of the coils (14A-E). Included is a monitor (84) for sensing the total |
| 4509409 |
Pump arrangement for a linear fluid operated device |
April 9, 1985 |
| This invention relates to a pump arrangement (54) for use in a linear fluid operated device having a reciprocating piston (14) separating a first active fluid chamber (30) and a second chamber (32) which eliminates the problem associated with fluid leakage buildup developing in the secon |
| 4508999 |
Short circuit protection apparatus |
April 2, 1985 |
| An apparatus (10) for controlling the supply of power from a power source (12) to a motor (14,14'). The apparatus (10) has a controllable switch (20,20') for coupling power to the motor (14,14') responsive to a pulse train, a circuit (22,22') for converting the voltage applied to the mot |
| 4506750 |
Pivotal hood arrangement |
March 26, 1985 |
| A hood (18) and a control device (38) mounted on a vehicle (10) adjacent the hood (18) obstructs access to a source of motive power (24) of the vehicle (10), interferes with removal of the source of motive power (24) resulting in damage to the control device (38) and hood (18), and requi |
| 4503936 |
Hydraulic hose mounting arrangement for high-visibility mast assembly |
March 12, 1985 |
| Special attachments mounted on a carriage assembly of a lift truck normally require one or more hydraulic cylinders to effect the various work tasks. A plurality of flexible hoses are normally routed over a mast assembly of the lift truck and are suitably connected to the cylinders to co |
| 4503935 |
Lift jack retention bracket |
March 12, 1985 |
| A lift mast for industrial trucks includes a stationary upright having a movable upright mounted thereon and a lift jack interconnected between the uprights. A bracket member is secured to a cylinder of the lift jack and is further secured to the stationary upright along with at least on |
| 4498838 |
Retention device for a load engaging member |
February 12, 1985 |
| This invention relates to a retention device (30) for releasably maintaining a load engaging member (24) at a transport position (28) which eliminates the problems of supporting and simultaneously locking the load engaging member (24) at the transport position (28), failure of the lock |
| 4497607 |
Fork position retainer |
February 5, 1985 |
| A lift truck carriage (12) is provided with a cylindrical bar (34) upon which the forks (16,18) may be mounted. The forks (16,18) are each retained in any desired position along the bar (34) by a clamp (42) located between a pair of mounting sleeves (28,30), and may be rotated about |
| 4496896 |
Vehicle battery charging apparatus |
January 29, 1985 |
| Apparatus (10) for delivering electrical energy from a charging station (12) to a vehicle (14), for example, to charge a vehicle battery (16). The apparatus (10) includes vehicle and station bumpers (18,20) each associated with a respective wire coil (28,24), and forming respective f |
| 4491195 |
Adjustable mounting arrangement for a rotatable guide member |
January 1, 1985 |
| The invention relates to an adjustable mounting arrangement (10) for a rotatable guide member (12) of a lift mast assembly (14) which eliminates the problems of inadvertent loosening, complexity of adjustment and premature wear. The mounting arrangement (10) includes a shaft (36) having |
| 4487106 |
Fluid operated system |
December 11, 1984 |
| Fluid control systems frequently eliminate use of fluid operated jack protecting relief valves because additional visibility blocking and damage prone conduits are required to connect the relief valves to the reservoir. A fluid operated system having a controlling valve, a selecting valv |
| 4481554 |
Voltage adaptive solenoid control apparatus |
November 6, 1984 |
| An apparatus (10) is provided for controllably operating at least one solenoid coil (12) in a battery operated system. The mean voltage applied to the coil (12) is controlled in response to at least the battery voltage, facilitating the use of various battery voltages with a single v |
| 4476960 |
Adjustable chain anchor for lift trucks |
October 16, 1984 |
| The lift system for the mast assembly of a lift truck normally includes at least one hydraulic cylinder and a pair of lift chains for selectively raising and lowering a movable assembly (upright or carriage assembly) on a fixed upright assembly. The tensions in the lift chains must be |
| 4472663 |
Failure protection circuit for a two-motor lift truck |
September 18, 1984 |
| An electrically operated dual motor drive system having first and second reversible traction motors (14, 16) driven by a power source (18). Motor control circuitry (10, 12) for controlling the direction of current flow through the motors (14, 16) is designed to be actuated by only two co |
| 4471975 |
Counterweight and axle mounting arrangement |
September 18, 1984 |
| This invention relates to a mounting arrangement (47) for pivotally connecting a counterweight (18) and a steering axle assembly (30) to a trunnion shaft (28) of a vehicle (10) which eliminates the problems of removal of both of the counterweight (18) and the steering axle assembly ( |
| 4471853 |
Mounting arrangement for an exhaust system |
September 18, 1984 |
| This invention relates to a mounting arrangement (10) for resiliently connecting an exhaust stack (12) to an exhaust pipe (14) and a frame (18) which eliminates the problems of vibration, noise transfer, joint failure, high exhaust temperatures, complexity, and inability to quickly assem |
| 4471848 |
Universally movable control panel assembly |
September 18, 1984 |
| This invention relates to a mounting arrangement (42) for connecting a control panel assembly (18) to an operators station (10) of a vehicle (12) which solves the problems of improper control panel location, poor visibility, operator discomfort, and poor accessibility. The mounting a |
| 4471273 |
Dual-motor control apparatus |
September 11, 1984 |
| The invention pertains to a control circuit (10) for controlling the speed of a pair of motors (12,14), including a pair of switching elements (68,74) coupling power to the motors (12,14), a pair of controllable circuits (64,74) for driving the switching elements (68, 74), a circuit |
| 4459080 |
Log handling attachment |
July 10, 1984 |
| Log handling attachments frequently encounter inadvertent log loss during transportation, and damage to the logs and the log handling forks (36,38) due to excessive loading. A log handling attachment (14) is provided which has a pair of log carrying forks (36,38), a clamp (48), an ejecto |
| 4452332 |
Apparatus and method for mounting a transmission |
June 5, 1984 |
| This invention relates to an apparatus and method for mounting a transmission (32) in a frame (10) of a vehicle (12) which eliminates the problems of accessibility, complexity and the need to elevate the vehicle for access from beneath. The mounting arrangement has a first trunnion ( |
| 4445090 |
Voltage level monitoring and indicating apparatus |
April 24, 1984 |
| A voltage level monitoring and indicating apparatus (10) including a voltage-to-frequency converter (12), an input conditioning circuit (16) that shifts voltage signals received from different voltage sources to the same input level for the converter (12) which then produces a proportion |
| 4442922 |
Adjustable slider bearing assembly |
April 17, 1984 |
| The invention provides several embodiments of support assemblies (26,30,32) suitable for use in a lift mast (10). Each support assembly (26,30,32) has two slider bearings (36) for symetrically loading the main loading surface (37) and the inboard and outboard flange edge (38,40) of the c |
| 4441585 |
Lift mast assembly |
April 10, 1984 |
| This invention relates to a lift mast assembly (10) preferably for a vehicle (34) which eliminates the problems of reduced visibility, reduced load carrying capacity for a given vehicle size and weight. The lift mast assembly has a fixed upright assembly (12) having first and second spac |
| 4417769 |
Self adjusting bearing arrangement |
November 29, 1983 |
| This invention relates to a self adjusting bearing arrrangement (10) for a pair of relatively movably members (12) which eliminates the problems of manual adjustment, improper adjustment, premature bearing failure and inefficient operation of the relatively movable members (12). The self |
| 4403904 |
Lift truck guide assembly |
September 13, 1983 |
| A guide assembly in a material-handling device (10) is disclosed which includes a frame (18), a mast assembly (12) pivotally mounted adjacent its bottom end (16) to the frame, and hydraulic cylinders (20) for rotating the mast assembly to tilt forwardly and rearwardly. The assembly furth |
| 4392773 |
Carriage assembly with shiftable forks |
July 12, 1983 |
| It is desirable to have relatively clear forward and downward vision for the operator of a lift truck which has a side shiftable carriage. Herein, a structure (52) mounts a top end portion (40) of a vertical leg (38) of a tine (36) to transfer substantially only horizontal forces to an u |
| 4392772 |
Load lifting carriage having side shift adjustable forks |
July 12, 1983 |
| A load lifting carriage (12) has horizontal rails (24, 26), vertical side members (28, 30), forks (16, 18) slidably supported on the rails (24, 26), cylinders (32, 34) having outer jackets (36, 40) connected to the vertical members (16, 18) and cylinder rods (38, 42), and couplers (44, 4 |
| 4392554 |
Lift mast assembly |
July 12, 1983 |
| This invention relates to an improved visibility free lift mast (10) which eliminates the problems of reduced lift height, upright strength and excessive guide bearing loading. The lift mast assembly (10) has a fixed upright (42) and a movable upright (52) mounted on the fixed upright an |
| 4391351 |
Parking disc brake actuator |
July 5, 1983 |
| Disc brakes have heretofore not received wide utilization on fork lift trucks because of the problems of space and lubrication. A lift truck has a very small, central hub area which greatly limits the size and type of brake and the ways of lubricating the brake. The disc brake actuator ( |
| 4382634 |
Material fracturing apparatus |
May 10, 1983 |
| An impacting apparatus (10) for fracturing material includes a housing (14) and a fracturing shank (12) which is mounted adjacent the housing (14) so as to reciprocate about a pivot axis (24). The fracturing shank (12) has an impact receiving portion (28) and a sealing portion (26). The |
| 4366883 |
Equalizing system for load lifting apparatus |
January 4, 1983 |
| Lift trucks (12) having two laterally spaced apart motors (56,58) for lifting a load (16) on a carriage (14) provide excellent forward visability for operators thereof. When the load (16) is unevenly disposed upon the carriage (14), or the lift truck (12) encounters uneven terrain, t |
