Elevator – industrial lift truck – or stationary lift for vehicle – Stairway assist for individual or minor barrier lift for... – Mounted adjacent stairway for travel parallel thereto
Reexamination Certificate
2007-05-01
2007-05-01
Mackey, Patrick (Department: 3654)
Elevator, industrial lift truck, or stationary lift for vehicle
Stairway assist for individual or minor barrier lift for...
Mounted adjacent stairway for travel parallel thereto
C187S245000, C198S321000
Reexamination Certificate
active
10510811
ABSTRACT:
The invention relates to a guide for a lift along a staircase, comprising an elongate profile with at least one edge thereon, which edge extends along a considerable part of the length of the profile, wherein the edge of the profile is serrated and forms a gear rack for engagement thereon by a drive of the lift.
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patent: 6761250 (2004-07-01), Szentistvany et al.
patent: 2002/0007999 (2002-01-01), Grass
patent: 2002/0074188 (2002-06-01), Lorton
patent: 2003/0051949 (2003-03-01), Chen
patent: 2005/0224294 (2005-10-01), Vroegindeweij
patent: 31 03 162 (1982-08-01), None
patent: 2 699 907 (1997-07-01), None
patent: 2216869 (1989-10-01), None
Freelift B.V.
Harness & Dickey & Pierce P.L.C.
Mackey Patrick
Matthews Terrell
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