The Raymond Corporation

Augustus R Baldini

Paul Patrick McCabe

John Bryant Kirk

Richard M Day

Stephen L Page

Paul F Finnegan

Dean Harvey

Daniel Robert Driscall

Richard J Lonzinski

Shane Storman

David E Muhlfeld

Paul Patrick Mccabe

Daniel Robert Driscoll

Automated systems and methods remove water from a fuel cell powered vehicle and eliminate the need for one or more separate steps to discharge the water. The water may be simultaneously drained or discharged from the vehicle holding tank while the fuel cell powered vehicle is being refueled.

Fuel cell water disposal

Operation of an industrial vehicle, such as one that lifts and transports loads, is controlled based on the weight of a removable battery. A control method involves reading a battery weight value from an electronic memory attached to a battery. That battery weight value is compared to a specified battery weight value for the industrial vehicle. The operation of the industrial vehicle is restricted to less than the normal operating characteristics when the battery weight value is less than the specified battery weight value. For example, the height to which a load can be raised is limited or the speed at which the industrial vehicle is limited when a battery installed on the industrial vehicle weighs less than the specified battery weight for effectively counterbalancing a load.

Controlling operation of an industrial vehicle based on battery weight

A plurality of rechargeable and removable batteries are allocated to a plurality of industrial vehicles based on the power delivery capability of each battery and the intensity level at which each vehicle is operated. One of a plurality of ratings is assigned to each industrial vehicle, wherein a rating denotes an operating intensity level. The actual capacity of each battery is measured. A given battery is installed on a particular industrial vehicle in response to the relationship between the rating assigned to that industrial vehicle and the actual capacity of the given battery. Batteries with greater actual capacity are installed on industrial vehicles that are used more intensively. When a battery ages and its actual capacity diminishes, that battery is installed on less intensively used industrial vehicles.

Method of allocating batteries for use on specific industrial vehicles in a fleet

A pallet truck including a controller that calculates the height of the fork carriage without the use of mechanical devices such as switches or sensors. A calculated carriage height is derived by adding the amount of time that a carriage is commanded to be raised and offsetting that by the amount of time that the carriage lower button is depressed. The calculated carriage height is essentially an accumulated lift time where the time that the carriage is lifting is a positive value and the time that the carriage is lowering is a negative value. When these values are combined, the result is the present calculated carriage height. The controller further monitors the calculated carriage height such that if the carriage is too close to the ground, the maximum speed of the pallet truck is limited to prevent damage to the forks or ground due to striking or scraping between them.

Pallet truck with calculated fork carriage height

A system and method that maintains the dynamic stability of a material handling vehicle having a vertical lift. The method allows static vehicle properties, such as vehicle weight, wheelbase length, and wheel configuration, and dynamic operating parameters, such as vehicle velocity, floor grade, lift position, and load weight, to be accounted for when maintaining the dynamic stability of a moving material handling vehicle. The method may include calculating and predicting center-of-gravity parameters, wheel loads, and projected force vectors multiple times a second and adjusting vehicle operating parameters in response thereto to maintain vehicle stability.

System and method for dynamically maintaining the stability of a material handling vehicle having a vertical lift

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 inside and outside surface.

Moisture-resistant enclosure for electronic circuitry

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 &ldquo;dynamic&rdquo; battery voltage. This dynamic battery voltage is used as input to a stored look-up table which provides a battery state-of-charge value.

Battery state of charge indicator

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 determined and compared to the trip height which corresponds to the limit switch position. When the calculated height reaches the trip height and the limit switch does not provide a sensed signal, a latch is set in a non-volatile memory which limits the maximum truck speed until the limit switch is again operable.

Growing community of inventors

Binghamton, NY, United States of America

Augustus R Baldini