Machine for anticipatory sensing and intervention to avoid swimmer entrapment

US20050193485A1Inactive Publication Date: 2005-09-08WOLFE MICHAEL LAWRENCE
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
WOLFE MICHAEL LAWRENCE
Publication Date
2005-09-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

A machine for anticipatory sensing and intervention to avoid swimmer entrapment, with an active pre-entrapment sensor (e.g. ultrasonic) that assesses the relative hazard based on swimmer proximity to the drain cover. An Ultrasonic Transducer launches waves into the suction piping and / or drain system, and to receive echoes from the drain cover, swimmer limbs, hair or body, and the water surface parellel to the drain cover. A Transmitter / Pulser electrically energizes the ultrasonic transducer to launch waves into the suction piping and / or drain system, A Receiver / Processor detects the echoes electrical signals from the the ultrasonic transducer and to receive echoes from objects of interest beyond the pool drain. A Logic and Control element converts the detected signals into reliable information regarding a swimmer safety / hazard status. An Output provides a pump shutdown command when required. Solutions for both new construction and retrofit are described.
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Description

CROSS REFERENCE TO RELATED APPLICATIONS

[0001] This application is based on provisional application Ser. No. 60 / 549514, filed on Mar. 2, 2004 and provisional application Ser. No. 60 / 587367, filed on Jul. 13, 2004. STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

[0002] Not Applicable DESCRIPTION OF ATTACHED APPENDIX

[0003] Not Applicable BACKGROUND OF THE INVENTION

[0004] This invention relates generally to the field of Swimmer Entrapment Avoidance and more specifically to a machine for anticipatory sensing and intervention to avoid swimmer entrapment.

[0005] Entrapment comprises all of the hazards of evisceration, hair entanglement, limb entrapment, body entrapment, etc.

[0006] To provide a means of detecting the required presence of the drain cover, the absence of which creates a lethal hazard. A missing drain cover requires immediate pump shutdown and no existing SVRS system can detect this situation.

[0007] To provide a means of anticipating a potential swimmer en...

Claims

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