6,872,145 Solo-operable seesaw
  Issued: March 29, 2005
  Filed: January 15, 2004
  U.S. Class: 472/110
Abstract:  A solo-operable seesaw includes a base member having oppositely spaced side sections for engaging a ground surface and further includes a plurality of elongated braces having opposed end portions connected thereto. The seesaw further includes an elongated plank having a first end portion engaged with the base member and selectively pivotable thereabout. The plank further has an oppositely spaced second end portion defining a seat and includes a plurality of elongated handlebars extending outwardly from the plank. The seesaw further includes a mechanism for pivotally lifting the plank upwardly along a predetermined arcuate path after the second end portion of the plank is moved to select lowered positions. The lifting mechanism includes a spring-loaded hydraulic air piston having opposed end portions and a plurality of brackets connected thereto. The lifting mechanism-further includes an elongated swivel pin transversely passing through the plank for connecting same to the base member.

Posted by GEN-ERIC at 06:39:14 pm into the following categories: Patents of the Day

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http://gen-eric.com/patents/htsrv/trackback.php/163

seems to be anticipated by the solo- seesaws you can buy in any toy shop ........

Posted by: jansen [Visitor] on 03/30/05 @ 02:12

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