Chairs and seats – With occupant-propelled walker or skater frame
Patent
1981-09-14
1982-11-16
McCall, James T.
Chairs and seats
With occupant-propelled walker or skater frame
280 8702W, 280649, A47D 1304, B62D 710
Patent
active
043592422
ABSTRACT:
A walker-jumper comprises a support member carrying a seat for a child, a base member, and a collapsible and expandable frame connecting the support and base members to allow adjustment so that the feet of the child can contact the ground to propel the walker-jumper. The frame connection to the support and base members is by way of a slidable mount for permitting the members to be expanded to a desired one of several expanded positions so that the distance to the ground may be controlled for different sized children. The frame passes through a mounting member slidably carried below the support member and a lock engages the mounting member to fix the base and support members in the desired expanded position. After being locked in place, the frame is yieldably coupled to the mounting member to allow limited movement of the frame relative to the mounting member, responsive to bouncing movements of a child. The slidable connection between the frame and the base member and the spring coupling the frame to the mounting member are protectively enclosed by plates movable with the frame.
REFERENCES:
patent: 517403 (1894-03-01), Bradish et al.
patent: 1326921 (1920-01-01), Dzimitowicz
patent: 1342518 (1920-06-01), Webber
patent: 3145999 (1964-08-01), Burnham
patent: 4019756 (1977-04-01), Ishida
patent: 4045045 (1977-08-01), Boucher et al.
patent: 4211426 (1980-07-01), Motloch
patent: 4231582 (1980-11-01), Moss
Degnen Stephen M.
Gerken Donald L.
Moore Donald L.
Aschenbrenner Peter A.
Cosco, Inc.
McCall James T.
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