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US4387892A Expired / Lapsed US ⏱️ 0.0 years remaining

Kendo dummy with oscillating sword

Assignee: Individual
•
Filing: 1981-09-28
•
Granted: 1983-06-14
•
Expires: 2001-09-28
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Abstract

Abstract A kendo dummy comprises a trunk and an oscillating mechanism. The trunk supported by a supporting frame comprises a throat piece, a breast plate and a stomach plate. There are three buzzers provided respectively behind the throat piece, the breast plate and stomach plate. The buzzers will make sound when the kendo exerciser makes an effective thrust at the throat piece, the breast plate or stomach plate. The oscillating mechanism securedly connected to the lower portion of the trunk by a stationary member, comprises a shaft secured to the stationary member, an oscillating arm pivotally mounting on the shaft, a weight suspended beneath the shaft, a torsion spring between the stationary member and the oscillating arm, a rotating member sleeved on the shaft, and a bamboo sword connected to the rotating member. With the spring member and weight, the bamboo sword when subjected to the kendo exerciser's attack will oscillate clockwise and counterclockwise.

Inventors

  • 👤 Cheng C. Wen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-10 01:22
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/34; A63B69/20; A63B69/215; A63B69/22; A63B71/00; A63B71/06; A63B71/0619; A63B71/0622; A63B2071/0625; A63B2220/00; A63B2220/17; A63B2244/00; A63B2244/10

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 99 words
A kendo dummy comprises a trunk means provided with a throat piece, a breast plate and a stomach plate a supporting frame to support a trunk means thereon; and an oscillating means connected to said trunk means by means of a stationary member, said oscillating means comprising a shaft secured to said stationary member, an oscillating arm pivotally mounted on said shaft, a suspending bar extending downward from said oscillating arm, a weight fastened to said suspending bar, a torsion spring extending from said stationary member to said oscillating arm, and a bamboo sword connected to said oscillating arm.
Claim 2
Dependent Claim 99 words
A kendo dummy comprises a trunk means provided with a throat piece, a breast plate and a stomach plate a supporting frame to support a trunk means thereon; and an oscillating means connected to said trunk means by means of a stationary member, said oscillating means comprising a shaft secured to said stationary member, an oscillating arm pivotally mounted on said shaft, a suspending bar extending downward from said oscillating arm, a weight fastened to said suspending bar, a torsion spring extending from said stationary member to said oscillating arm, and a bamboo sword connected to said oscillating arm.
Claim 3
Dependent Claim 27 words
A kendo dummy as claimed in claim 1 wherein each of said throat piece, said breast plate and said stomach plate is supported by a coil spring.
Claim 4
Dependent Claim 25 words
A kendo dummy as claimed in claim 2 further comprising three buzzers respectively provided behind said throat piece, said breast plate and said stomach plate.
Claim 5
Dependent Claim 17 words
A kendo dummy as claimed in claim 1 wherein said weight is adjustable on said suspending bar.
Claim 6
Dependent Claim 32 words
A kendo dummy as claimed in claim 1 wherein said stationary member and said oscillating arm each have a bore provided therein to permit for said torsion spring to adjustablly slide therebetween.
Claim 7
Dependent Claim 26 words
A kendo dummy as claimed in claim 1 wherein the inclination of said bamboo sword is adjustable and said bamboo sword when hit is movable sidewise.

References Cited (Backward Citations)

US101912A Cited
US694335A Cited
US1739795A Cited
US2909370A Cited
US4012901A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-06-13 1986-12-13 1987-06-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-06-13 1990-12-13 1991-06-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-06-13 1994-12-13 1995-06-14 $7700.00 Window Closed / Lapsed

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