Teeter-totter

Amusement devices – Seesaw

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C472S112000, C472S113000

Reexamination Certificate

active

07413516

ABSTRACT:
A teeter-totter is constructed with a pair of seats mounted at opposite ends of a rocker beam. The seats, when aligned horizontally, are below the pivot point so as to provide a pendular component of motion. The pivot is supported on an overhead framework and the rocker beam is suspended below the pivot to eliminate the pinch points found in conventional teeter-totter designs. A counterbalance mechanism may be incorporated so that users of different weights remain in balance while operating the teeter-totter.

REFERENCES:
patent: 124262 (1872-03-01), Fowler
patent: 654779 (1900-07-01), Bowland
patent: 1420787 (1922-06-01), Thomas
patent: 1429289 (1922-09-01), Maxwell et al.
patent: 1437888 (1922-12-01), Davis
patent: 1543619 (1925-06-01), Pryor
patent: 1553418 (1925-09-01), Watts
patent: 1659735 (1928-02-01), Jamison
patent: 1714247 (1929-05-01), Smedley
patent: 1746260 (1930-02-01), Kenney
patent: 1866906 (1932-07-01), Rager
patent: 1952548 (1934-03-01), Hayes
patent: 2092993 (1937-09-01), Tinker
patent: 2222119 (1940-11-01), Overholt
patent: 2247533 (1941-07-01), Twist
patent: 2471572 (1949-05-01), Loker
patent: 2488889 (1949-11-01), Allie
patent: 2545295 (1951-03-01), Miller
patent: 2616485 (1952-11-01), Robbins
patent: 2648538 (1953-08-01), Robbins
patent: 2685915 (1954-08-01), Hannas
patent: 2701604 (1955-02-01), St. Louis
patent: 2738831 (1956-03-01), Sage
patent: 3051481 (1962-08-01), Johnson
patent: 3311373 (1967-03-01), Phillips
patent: 4226411 (1980-10-01), Manus
patent: 4570928 (1986-02-01), Smith

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Teeter-totter does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-4005244

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.