US5366430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Twist disc
Assignee: Individual
•
Filing: 1994-02-14
•
Granted: 1994-11-22
•
Expires: 2014-02-14
Abstract
Abstract An improved twist disc structure having a base disc with an axle in the center thereof for pivotally fitted thereon a movable disc, the upper surface of the base disc being provided with a plurality of undulating tracks. The movable disc has multiple through holes provided therein, and each through hole accommodates a lifting element. The base of these through holes are supported on the tracks. When the movable disc rotates on the base disc, the lifting elements move up and down in the corresponding through holes to massage the points on the soles of the user.
Inventors
- 👤 Ching-Hui Yao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:53
CPC Classifications
A; A63; A63B; A63B22/00; A63B22/14; A61; A61H; A61H15/00; A61H2015/0064
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
149 words
An improved twist disc for intermittently stimulating the soles of the user when the user stands on said twist disc and twists, said twist disc comprising: a base disc having a vertical axle in the center thereof; a movable disc pivotally fitted onto said axle on said base disc; a plurality of support elements provided between said base disc and said movable disc for supporting said movable disc, wherein a plurality of undulating tracks are provided on said base disc, and a multiplicity of through holes are provided in said movable disc and a multiplicity of lifting elements are accommodated in the corresponding through holes for moving up and down therein by means of a counter-force of said tracks on said base disc when said movable disc and said base disc perform relative motion, said lifting elements projecting from said movable disc when moving up the corresponding through holes.
Claim 2
Dependent Claim
149 words
An improved twist disc for intermittently stimulating the soles of the user when the user stands on said twist disc and twists, said twist disc comprising: a base disc having a vertical axle in the center thereof; a movable disc pivotally fitted onto said axle on said base disc; a plurality of support elements provided between said base disc and said movable disc for supporting said movable disc, wherein a plurality of undulating tracks are provided on said base disc, and a multiplicity of through holes are provided in said movable disc and a multiplicity of lifting elements are accommodated in the corresponding through holes for moving up and down therein by means of a counter-force of said tracks on said base disc when said movable disc and said base disc perform relative motion, said lifting elements projecting from said movable disc when moving up the corresponding through holes.
Claim 3
Dependent Claim
25 words
An improved twist disc as claimed in claim 1 wherein said tracks on said base disc are distributed concentrically with said axle as the center.
Claim 4
Dependent Claim
16 words
An improved twist disc as claimed in claim 1 wherein said lifting elements are spherical bodies.
Claim 5
Dependent Claim
16 words
An improved twist disc as claimed in claim 1 wherein said lifting elements are magnetic bodies.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-11-21 | 1998-05-23 | 1998-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-21 | 2002-05-23 | 2002-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-21 | 2006-05-23 | 2006-11-22 | $7700.00 | Window Closed / Lapsed |