Seats for children

Details Seats for children Seats for children

1979-02-09

1980-11-18

McCall, James T.

Supports

Stand

Standard type

248406, 272 1R, 297349, F16M 1100, A47C 102, A63G 3100

Patent

active

042341523

ABSTRACT:
A child's seat includes a base structure having a central helical screw. A seat is mounted on a shaft for upward movement without rotation. Thereafter, the seat can only fall while rotating due to engagement of teeth respectively on a nut and on the shaft. After reaching its lowermost position, the nut is disengaged from the shaft to permit free rotation of the seat in either direction.

REFERENCES:
patent: 134423 (1872-12-01), Doremus
patent: 159243 (1975-01-01), Woodward
patent: 629382 (1899-07-01), MacKenzie
patent: 968565 (1910-08-01), Hunn
patent: 1671403 (1928-05-01), Brown
patent: 2501976 (1950-03-01), Vitek
patent: 2584015 (1952-01-01), Hawes
patent: 3534937 (1970-10-01), Heinzel
patent: 3583092 (1971-06-01), Schoenfield
patent: 3730520 (1973-05-01), Willis
patent: 4026509 (1977-05-01), Wolters

Affiliated with

Also associated with

Rating

Seats for children does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Seats for children, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seats for children will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-595099