| Patent Number |
Title Of Patent |
Date Issued |
| D600425 |
Tiller arm |
September 15, 2009 |
|
| D598223 |
Vehicle seat |
August 18, 2009 |
|
| D538503 |
Front cover for a material handling vehicle |
March 13, 2007 |
|
| D537374 |
Display panel for a material handling vehicle |
February 27, 2007 |
|
| D519706 |
Control handle for a material handling vehicle |
April 25, 2006 |
|
| D515770 |
Control handle for a material handling vehicle |
February 21, 2006 |
|
| D515769 |
Top cover for a material handling vehicle |
February 21, 2006 |
|
| D509040 |
Front cover for a material handling vehicle |
August 30, 2005 |
|
| D506859 |
Top cover for a material handling vehicle |
June 28, 2005 |
|
| D505763 |
Base leg wheel cover for a material handling vehicle |
May 31, 2005 |
|
| D504200 |
Frame for a material handling vehicle |
April 19, 2005 |
|
| D499855 |
Front cover for a material handling vehicle |
December 14, 2004 |
|
| D499854 |
Load back rest for a material handling vehicle |
December 14, 2004 |
|
| D499853 |
Base leg wheel cover for a material handling vehicle |
December 14, 2004 |
|
| D499523 |
Control handle for a material handling vehicle |
December 7, 2004 |
|
| D499522 |
Base leg for a material handling vehicle |
December 7, 2004 |
|
| D499521 |
Top cover for a material handling vehicle |
December 7, 2004 |
|
| D499520 |
Cover for a material handling vehicle |
December 7, 2004 |
|
| D499519 |
Bumper for a material handling vehicle |
December 7, 2004 |
|
| D497463 |
Control handle for a material handling vehicle |
October 19, 2004 |
|
| D481658 |
Control handle for a material handling vehicle |
November 4, 2003 |
|
| D364029 |
Angled twist-grip handle |
November 7, 1995 |
|
| D327858 |
Material handling vehicle display panel |
July 14, 1992 |
|
| 7428943 |
Material handling vehicle with ergonomic dual control handle system |
September 30, 2008 |
| A material handling vehicle includes first and second control handles positioned at opposing ends of an operator compartment. The first control handle is positioned adjacent the forks for driving the vehicle in a fore or forks first direction, and the second control handle is positioned |
| 7398859 |
Mast construction for a lift truck |
July 15, 2008 |
| A mast includes a base section, an outer telescopic section and an inner telescopic section which are raised and lowered by a pair of main lift cylinders. A fork carriage is slidably mounted to the inner telescopic section and is raised and lowered thereon by a pair of free lift cyli |
| 7353099 |
Pallet truck tiller arm with angular speed mode adjustment and acceleration control |
April 1, 2008 |
| A motorized pallet truck includes an angular indicator on the steering arm mechanism providing an internal controller with an angular position of the steering arm or tiller. The controller applies a brake when the tiller is in either of a substantially vertical or substantially horiz |
| 7259662 |
Photoelectric operator position detector |
August 21, 2007 |
| A method and apparatus for reinforcing the training received by an operator of a material handling vehicle to maintain the operator's feet and legs in the operator compartment includes a first and second photoelectric beam extending across the entry to the compartment. When a deadman |
| 7240771 |
Mast staging hydraulic circuit |
July 10, 2007 |
| A multistage mast assembly for use on a lift truck and method of operation for staging first and second mast sections of the multistage mast assembly. Each mast section has a retracted position and an extended position. The apparatus includes a mast staging hydraulic circuit which di |
| 7191872 |
Fork height adjustment mechanism |
March 20, 2007 |
| A material handling vehicle including a truck body and a fork assembly adjacent the truck body. A link arm extending between the truck body and the fork assembly has a proximal end and a distal end. A first pivot pin is fixed to the body and pivotally links the proximal end of the link a |
| 7096999 |
Mast construction for a lift truck |
August 29, 2006 |
| A mast includes a base section, an outer telescopic section and an inner telescopic section which are raised and lowered by a pair of main lift cylinders. A fork carriage is slidably mounted to the inner telescopic section and is raised and lowered thereon by a pair of free lift cyli |
| 7051832 |
Material handling vehicle with dual control handles |
May 30, 2006 |
| A material handling vehicle includes first and second control handles positioned at opposing ends of an operator compartment. The first control handle is positioned adjacent the forks for driving the vehicle in a fore or forks first direction, and the second control handle is positioned |
| 7040427 |
Tiller-steered industrial truck |
May 9, 2006 |
| An industrial truck having a steering assembly used to steer the industrial truck about a steering axis when a pivotally attached tiller is swung around the truck by an operator. The steering axis is tilted towards the forks of the truck an angle between 2 and 5 degrees from vertical |
| 7025157 |
Pallet truck tiller arm with angle detector for speed select |
April 11, 2006 |
| A motorized pallet truck includes an angular indicator on the steering arm mechanism providing an internal controller with an angular position of the steering arm or tiller. The controller applies a brake when the tiller is in either of a substantially vertical or substantially horiz |
| 6971470 |
Control system for material handling vehicle with dual control handles |
December 6, 2005 |
| A material handling vehicle includes first and second control handles positioned at opposing ends of an operator compartment. The control system receives inputs from each of the first and second control handles and determines an appropriate travel direction and speed based on those i |
| 6900411 |
Flexible heater for heating electrical components in operator control handle |
May 31, 2005 |
| Disclosed is a flexible printed circuit board for use in a control handle. The circuit board includes resistive heating elements for heating electrical components in the circuit to limit the formation of frost and condensation on the components. |
| 6871721 |
Ergonomic operator compartment for operators of differing heights |
March 29, 2005 |
| An operator station for a lift truck or other vehicle including a scalloped arm rest providing a plurality of arm rest positions for operators of varying sizes. The arm rests are positioned approximate an operator control handle, such that operators can operate vehicle controls while |
| 6793247 |
Order picker angled steering wheel |
September 21, 2004 |
| A vehicle including an operator platform having a platform front end and a platform rear end joined by opposing platform sides. The operator platform is bisected by a longitudinal centerline extending through the front and rear ends. An operator console is mounted relative to the platfor |
| 6697258 |
Moisture-resistant enclosure for electronic circuitry |
February 24, 2004 |
| An enclosure for electronic circuitry includes a container that is formed to define an enclosed volume. An open end of the container is sealed by a printed circuit board which also provides electrical connection to the enclosed electronic circuitry by means of connectors mounted to its i |
| 6648581 |
Order picker truck |
November 18, 2003 |
| An order picker truck includes an extendible mast, and a load platform slidably fixed relative to the extendible mast. An operator platform is slidably fixed relative to the load platform, and a load former is fixed to the operator platform. The load former defines a volume over a portio |
| 6580990 |
Integrity check for electric steer system |
June 17, 2003 |
| An industrial lift truck includes a steering unit which operates in response to steering commands to operate an electric steering motor that turns a steerable wheel. The integrity of the steering unit is checked by applying alternating steering commands to the steering unit and monitorin |
| 6557456 |
Cushioned actuator |
May 6, 2003 |
| An actuator for use with a lift truck having an extendible mast includes an elongated housing and an axial bore formed in said housing. The bore has a first end and a second end. A ram is slidably and sealingly mounted in the bore for axial movement between an extended position and a ret |
| 6556020 |
Battery state of charge indicator |
April 29, 2003 |
| A state-of-charge indicator system monitors the battery current and voltage during operation of a lift truck. Selected current and voltage samples are used to calculate the internal battery resistance and this is employed to calculate a "dynamic" battery voltage. This dynamic battery vol |
| 6445984 |
Steer control system for material handling vehicles |
September 3, 2002 |
| The present invention is a method and apparatus for controlling a steer center position of an automatic guided vehicle (AGV) of the type that follows a wire. As the automatic vehicle follows a wire, the distance of the AGV from the wire is monitored over a given distance, and an average |
| 6359265 |
Heated glass guard with electronic control for forklift trucks |
March 19, 2002 |
| An open forklift truck is provided having an elongated windshield that protects the operator from wind chills experienced when operating the truck in a cold storage environment. The windshield is a laminate having a plurality of heating elements disposed therein that are electrically |
| 5791440 |
Speed limiting method and apparatus for lift truck |
August 11, 1998 |
| A method and/or apparatus for reducing the maximum speed of a lift truck when a fork carriage exceeds a fork carriage trip height and a limit switch positioned at the trip height to detect trip height has failed. Using lift truck control signals, a calculated fork carriage height is |
| 5778327 |
Guidewire controls for a material handling vehicle |
July 7, 1998 |
| The present invention features a universal, manned, material handling vehicle. The material handling vehicle is capable of operating in a manned mode, a wire guidance mode, and a rail guidance mode. This manned material handling vehicle contains a steering management control system havin |
| 5685555 |
Lift truck with inertial damper |
November 11, 1997 |
| A lift truck 100 has an inertial damper 150 coupled between the base frame 116 and a A-frame holding a suspended wheel. The damper has a slider plate 170 frictionally engaged by friction pads 161, 169 on outer plate 160 and friction pads 181, 189 on the other outer plate 180. The outer p |
| 5680099 |
Vehicle steering display-controller |
October 21, 1997 |
| A steerable vehicle having front and rear wheels is provided with a visual display for indicating the directional position of the wheels. The visual display, which is transparent, is vertically mounted on the vehicle within the normal forward view of the operator, enabling the operator t |
| 5579227 |
Lift truck diagnostics |
November 26, 1996 |
| The present invention features a diagnostic method for assessing intermittent failures which occur in the components and systems of material handling vehicles. The material handling vehicle of this invention uses an on-board microprocessor and display to allow an operator to determin |
| 5526673 |
Material handling vehicle carriage height measurement |
June 18, 1996 |
| The invention features a method and apparatus of determining the absolute and/or relative carriage height of a forklift truck having an extendable mast. The hydraulic fluid displacement is converted to electrical signals to obtain the carriage height. A hydraulic flow sensor has two prox |
