Winding – tensioning – or guiding – Reeling device – With particular drive
Patent
1994-10-24
1998-06-09
Nguyen, John Q.
Winding, tensioning, or guiding
Reeling device
With particular drive
2423909, 242381, 182 73, 226143, 226190, 254364, B65H 7548, B65H 2000, A62B 106
Patent
active
057622825
ABSTRACT:
A remotely controllable retractable lifeline extender having an electric motor attached thereto to provide powered payout and retraction of the lifeline to a user located below. The remote retractable lifeline extender may be fastened to the ceiling or rafter of a structure, or to some other sturdy structural component thereof having a great deal of clearance below the connection point. The device is actuated by a hand-held remote control unit used by the worker to be attached to the lifeline. By activating the remote control unit, the lifeline is lowered to the worker by the motor-powered unit. The lifeline is attached to the worker's safety belt or harness by a fastening member such as a locking snap hook or carabiner. When the worker completes the job and is finished with the lifeline, the lifeline is disconnected from the worker's safety belt or harness, and the remote control unit is again activated to cause the motor-powered unit to retrieve the lifeline and rewind it into the retractable lifeline housing.
REFERENCES:
patent: 1575344 (1926-03-01), Klein
patent: 3110439 (1963-11-01), Drake
patent: 3760910 (1973-09-01), Koshihara
patent: 3844377 (1974-10-01), Wilkins
patent: 4511123 (1985-04-01), Ostrobrod
patent: 4611688 (1986-09-01), Sekhar
patent: 4653609 (1987-03-01), Devine
patent: 5186289 (1993-02-01), Wolner et al.
patent: 5388781 (1995-02-01), Sauber
D B Industries, Inc.
Nguyen John Q.
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