Fire escape – ladder – or scaffold – Wall- or floor-attached – Retractable or collapsible beneath floor – track-mounted
Patent
1995-09-22
1996-08-20
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
Wall- or floor-attached
Retractable or collapsible beneath floor, track-mounted
182 96, 182127, 280166, B60R 302
Patent
active
055470408
ABSTRACT:
An automatic entryway step system for recreational vehicles and motor homes which extends and retracts a step in response to a momentary push button switch located inside the vehicle near the door. A safety retraction system automatically retracts the step when the vehicle ignition is turned on, but only if the vehicle parking brake is not engaged. If the vehicle ignition system is turned on while the parking brake is engaged, a step warning indicator will be activated to alert the driver that the step is extended. If the parking brake is released, the step will retract and the warning indicator will be turned off.
REFERENCES:
patent: 3403926 (1968-10-01), Way et al.
patent: 4185849 (1980-01-01), Jaeger
patent: 4188889 (1980-02-01), Favrel
patent: 4623160 (1986-11-01), Trudell
patent: 5085450 (1992-02-01), DeHart, Sr.
Blake John F.
Boddicker Daniel J.
Hanser Paul E.
Chin-Shue Alvin C.
HWH Corporation
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