Pendulum swing
US4323233A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 6, 1980 |
| Grant date | Apr 6, 1982 |
| Priority date | — |
| Expiry date | Aug 6, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63G9/16
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An infant swing includes a uni-axial weight-biased pendulum escapement motor actuator with a weighted body that glides up and down one of the support legs of the swing and a rewind apparatus having a coiled torsion spring which rewinds the weight cord around a reel when the weight is repositioned to a position of potential energy useable for actuating the swing, and an axially biased unidirectional slip clutch. The swing also includes two rear legs which extend downwardly from a frame to support the swing in combination with two similarly downwardly extending front legs, the rear legs being foldable into parallel relation to the front legs for transportation and storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.