Paul A Heusinkveld

US Patent:

46079700, Aug 26, 1986

Filed:

Feb 5, 1985

Appl. No.:

6/698445

Inventors:

Paul Heusinkveld - Arlington VA

International Classification:

B42F 1316
B42F 1302

US Classification:

402 20

Abstract:

A one piece binder for perforated sheets, including a base portion and at least a ring. The ring comprised two members which, when locked, present a smooth and continuous surface and, when unlocked, are spring-biased apart. The locking means on one ring member terminates in resilient guide and latching portions which are received in an apertured portion of the other member.

US Patent:

48653233, Sep 12, 1989

Filed:

Apr 12, 1988

Appl. No.:

7/180834

Inventors:

Paul A. Heusinkveld - Arlington VA

International Classification:

A63F 908

US Classification:

273153S

Abstract:

A three dimensional sliding element puzzle having a surface that is spherical in shape. The sphere is divided into longitudinal segments and latitudinal bands of surface elements. The puzzle is solved by rearranging the surface elements. The surface elements are rearranged by latitudinally rotating latitudinal bands of elements, and are rearranged by rotating hemispherical sets of longitudinal segments. The surface elements may have a pattern, color or numeric coding to indicate when they are arranged in a solution set. The surface elements may also be imprinted so that the solution is a map of the earth or another globe. The surface elements may also be designed to have a number of configurations forming a number of possible solutions.