Device and method for preventing damage to goods during handling

Details Device and method for preventing damage to goods during handling Device and method for preventing damage to goods during handling

1996-08-12

1998-08-18

Hofsass, Jeffery

Communications: electrical

Condition responsive indicating system

Specific condition

340688, 91 1, 60328, G08B 2100

Patent

active

057963436

ABSTRACT:
An alarm device, an improved squeeze-pad hydraulic system for a squeeze truck, and a method for converting an existing squeeze-pad hydraulic system of a squeeze truck into a squeeze-pad hydraulic system that alerts the operator of the squeeze truck when dangerously high hydraulic pressures are approached within the squeeze-pad hydraulic system are described. The alarm device comprises: an alerting device, operationally responsive to an electrical signal, having an input terminal for receiving the electric signal, and an alarm threshold switch comprising: a pressure transducing element in fluid communication with the hydraulic lines in a manner such that hydraulic fluid within the hydraulic fluid lines will exert a pressure on the pressure transducing element, and an electrical switching device, in electrical connection with the input terminal, for directing the electrical signal to the input terminal. The electrical switching device is responsive to the pressure transducing element in a manner such that the electrical switching device directs the electrical signal to the input terminal when a predetermined pressure is placed on the pressure transducing element by the hydraulic fluid.

REFERENCES:
patent: 2570125 (1951-10-01), Hoare et al.
patent: 4013185 (1977-03-01), Bratton
patent: 4640657 (1987-02-01), Moore et al.
patent: 4906977 (1990-03-01), Huey-Jeng
patent: 5121109 (1992-06-01), Murphy et al.
patent: 5305680 (1994-04-01), Weber
patent: 5357242 (1994-10-01), Morgano

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