US 6,513,809 B1Granted

Chess pieces and chess sets

OwnerMilton Brayton Graffinventor

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Abstract

The subject invention involves chess pieces made primarily from hardware components and chess sets of such chess pieces. Each chess piece comprises a center shaft component comprising a vertical threaded rod having a bottom end, a top end, and a surface from the rod's bottom end to its top end that is partially or wholly cylindrical and threaded. The center shaft component optionally comprises a head at either its bottom or top end. Each chess piece also comprises holed components, each holed component having a hole through which or into which the center shaft component projects. The holed components are stacked along the length of the center shaft component. All the holed components are secured in place by one or more holed components which are nuts having threads complementary to those of the threaded rod, and optionally by the head of the center shaft component.

Claims26

Dependent claims

A chess piece having a base on which the chess piece rests when upright on a flat horizontal surface, a top which is the uppermost part of the chess piece when it is upright, and a height being the vertical distance from the base to the top;

each chess piece comprising:
(a) a center shaft component having a bottom end and a top end and a length from its bottom end to its top end;
the center shaft component comprising a vertical threaded rod having a bottom end, a top end, and a surface from the rod's bottom end to its top end that is partly or wholly cylindrical, the cylindrical surface being partly or wholly threaded;
the center shaft component optionally comprising a head at either its bottom or its top end;
and
(b) holed components, each holed component having a hole through which or into which the center shaft component projects, the holed components being stacked along the length of the center shaft component, there being a bottom holed component and a top holed component and other holed components between the bottom and top holed components at the center shaft component, all the holed components being secured in place by one or more holed components which are nuts having threads complementary to those of the threaded rod, and optionally by the head of the center shaft component;
(c) one holed component being a knockout seal, the knockout seal comprising a disc having two circular surfaces, an outer rim of one surface, the outer rim defining a plane, prongs projecting from the other surface about perpendicular to the plane of the outer rim, the prongs having ends parallel to the disc surface from which they project, such ends of the prongs defining a plane parallel to the plane of the outer rim, and a hole through the disc from the center of one circular surface to the center of the other, the outer rim or the ends of the prongs of the knockout seal being the base of the chess piece.

4 more elements

each chess piece comprising:
(a) a center shaft component having a bottom end and a top end and a length from its bottom end to its top end;
the center shaft component comprising a vertical threaded rod having a bottom end, a top end, and a surface from the rod's bottom end to its top end that is partly or wholly cylindrical, the cylindrical surface being partly or wholly threaded;
the center shaft component optionally comprising a head at either its bottom or its top end;
and
(b) holed components, each holed component having a hole through which or into which the center shaft component projects, the holed components being stacked along the length of the center shaft component, there being a bottom holed component and a top holed component and other holed components between the bottom and top holed components at the center shaft component, all the holed components being secured in place by one or more holed components which are nuts having threads complementary to those of the threaded rod, and optionally by the head of the center shaft component;
(c) the center shaft component having a head at its bottom end, and the bottom holed component comprising a center part including the hole through which the center shaft component projects which is above at least part of the head of the center shaft component, and a part which is the base of the chess piece and is below the bottom of the head of the center shaft component;
(d) the base of the chess piece being regular geometric shape or circular having a diameter, and the ratio of the height of the chess piece to the diameter of the base being from about 2.5:1 to about 1.5:1.

5 more elements

Dependencies are inferred from the claim text.