Other

Axcelis Technologies, Inc.

Igor Goldman

Christopher Garmer

Ilya M Ayzman

Ilya Ayzman

Didier Amzallag

Feliks B Kleyner

Feliks Kleyner

A ring puzzle has a plurality of rings having a through going slot through which the rings can be introduced into one another, and each of the ring being provided with a plurality of groups at least two circumferentially spaced protrusions and at least two axially spaced grooves, such that when one of the rings is introduced in another of the rings and turned relative to the latter and the protrusions of one of the rings are engaged in the grooves of another of the rings at least one of the groups two of the rings become firmly connected with one another.

Ring puzzle

A stellated icosahedron puzzle has a plurality of assembled together parts forming in an assembled condition a stellated icosahedron, the assemblies including six mated together hollow octahedron assemblies and twelve hollow pyramid assemblies located on the hollow octahedron assemblies rotatable around each of the octahedron assembly via pivot shafts of the octahedron assemblies and stoppable every 180&#xb0; of rotation, and the pyramid assemblies being independently attachable to and detachable from each of the pivot shafts.

Stellated icosahedron puzzle

Manipulative toy

A push-up device has at least one tubular element, a spring means located inside the tubular element and providing a spring resistance, and a handle associated with the tubular element and a movable by a user against the spring resistance applied by the spring to provide exercising for a user.

Push-up press

A radiant source for heating a workpiece such as a semiconductor wafer includes a plurality of radiant heating elements, arranged in an array that is generally concentric about a source center axis. A reflector has a reflecting surface that bounds a cavity or channel that contains the heating elements, the reflector comprising walls that extend around the center axis and that are finished for reflecting radiant energy emitted by the heating elements to a region occupied by a wafer. The channel reflecting surfaces comprise at least a part of a plane and/or cylinder and/or a cone and/or a convex to the heating elements curved surface of revolution bordering or spanning two or more adjacent heating elements.

Radiant heating source with reflective cavity spanning at least two heating elements

A three dimensional logical game element has a body formed as a part of a three dimensional member, the body has a plurality of elements with corners whose apexes are removed on sides which are located in planes to be in contact and slide over one another during assembly or disassembly of at least two such elements, the body having at least one fixing member for fixing a position of the logical game element, the fixing member being formed as a projection.

Logical game element

A logical toy has two coaxial, spring-biased parallel plates formed as disks which are concentrically turnable about a common axis and are provided with arcs, a plurality of toy logical elements surrounded by the arcs and turnable inside the arcs, the toy logical elements being formed as parts of a cylinder, one of the plates having an inner surface provided with a ring-shaped passage with depressions for fixing of a mutual turning of the plates, the other of the plates having an inner surface provided with ring-shaped projection corresponding to a diameter of the ring-shaped passage and having spherical projections, the ring-shaped projections having a height which is greater than a height of spherical projections, the ring-shaped passage with the depressions and the ring-shaped projection with the spherical projections being located concentrically to the axis of turning of the plates at the minimal distance from the axis, the arcs and the inner surfaces of the plates having a common sides provided with radii, the inner surfaces of the arcs having fixators of position of the toy logical elements which are formed as transverse slots, the plates being provided with setting openings, a movable and immovable attachments pressed-in the setting openings, massaging attachments and further attachments pressed in an outer surface of the plates.

Growing community of inventors

Montgomery Village, MD, United States of America

Igor Goldman