Hose separation transmitter system and methods

Details Hose separation transmitter system and methods Hose separation transmitter system and methods

2005-08-02

2005-08-02

Wu, Daniel (Department: 2632)

Communications: electrical

Land vehicle alarms or indicators

C340S870030, C417S009000, C417S010000, C417S063000, C251S089000, C137S068180, C137S804000, C137S805000

Reexamination Certificate

active

06924733

ABSTRACT:
A hose separation transmitter system includes a shock sensor and a transmitter that are secured to the delivery hose. If the hose becomes disconnected, the shock sensor will generate a shock signal when the hose falls to the ground and the transmitter will respond to the shock signal by generating an encoded RF signal. A receiver at the vehicle receives the RF signal from the transmitter, determines that a hose disconnect has occurred, and automatically disables a fluid pump or closes a valve to stop the flow of fluid. The shock sensor preferably uses a strip of piezoelectric material. Related methods are also disclosed. For quick connect and disconnect, the shock sensor and transmitter are preferably secured to the hose by a hook and loop fabric material. The transmitter is immune to normal ambient vibration levels. Related methods are also disclosed.

REFERENCES:
patent: 5263824 (1993-11-01), Waldbeser et al.
patent: 5999087 (1999-12-01), Gunton
patent: 6412512 (2002-07-01), Vernet
patent: 6827112 (2004-12-01), Lemmon
PT2262 Encoder specification, Princeton Technology, May 1998, 18 pgs.
Advertisement, “Passive Transport Shut Down, Automatic Leak Detection,” LPGAS Magazine, Feb. 2003, p. 9.

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