Fire escape – ladder – or scaffold – With storage device for supple escape – Reel
Patent
1996-06-14
1998-06-30
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
With storage device for supple escape
Reel
182 3, 182 18, 182237, 2423835, 254267, A62B 110, A62B 3500
Patent
active
057719934
ABSTRACT:
The present invention provides a retractable lifeline safety device in which the side of the housing thereof comprises at least two extruded metal housing member which are connected to form the side of the housing. The present invention also provides a retractable lifeline safety device comprising a roller disposed in housing to reduce friction and abrasion. The present invention further provides a retractable lifeline safety device comprising a pawl clip means for maintaining the pawl adjacent the drum flange. The present invention also provides a ratchet brake assembly comprising abutment means extending radially outward therefrom to abut the housing and prevent rotation of the ratchet brake assembly relative to the housing. The present invention also provides retractable lifeline safety device comprising a drum assembly in which the drum flanges are removable from the drum hub to facilitate changes in the lifeline type. Finally, the present invention provides a lifeline comprising an indicator flag over which a portion of the lifeline is folded. When the lifeline experiences a tensile load at or above a predetermined tensile load the folded portion of the lifeline unfolds to expose the indicator flag.
REFERENCES:
patent: 2791397 (1957-05-01), Coffman
patent: 2990131 (1961-06-01), Carlsson
patent: 3760910 (1973-09-01), Koshihara
patent: 4228970 (1980-10-01), Morinaga
patent: 4253544 (1981-03-01), Dalmaso
patent: 4877110 (1989-10-01), Wolner
patent: 5351906 (1994-10-01), Feathers
Adams Ronald W.
Anderson Preston L.
Boyd Allen D.
Gayetty Joseph F.
Taylor Robert A.
Chin-Shue Alvin C.
Dalloz Safety, Inc.
Phan Long Dinh
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