Building blocks connectable in slideable or non-slideable relationship

• US 3,220,141 A
• Filed: 07/02/1962
• Issued: 11/30/1965
• Est. Priority Date: 07/02/1962
• Status: Expired due to Term

• Current Assignee: Samuel G. Goss III
• Original Assignee: Samuel G. Goss III
• Inventors: GOSS III SAMUEL G
• Application Number:
  US04/206,754
• Time in Patent Office: 1,247 Days
• US Class Current: 446/124
• CPC Class Codes: A63H 33/084 with grooves dovetails A63H33/082

Claims

1. A SET OF HOLLOW, PLASTIC INTERFITTING BLOCK-LIKE PIECES, EACH OF SAID PIECES BEING FORMED WITH A FIRST FACE HAVING A LONGITUDINAL RIDGE CENTRALLY DISPOSED THEREON, A SECOND FACE OPPOSITE SAID FIRST FACE ON SAID PIECE, A PAIR OF SPACED LONGITUDINAL RIDGES THEREON DEFINING A CHANNEL WITH SAID SECOND FACE, ALL OF SAID RIDGES BEING TRANSVERSELY NOTCHED TO A DEPTH LESS THAN THE HEIGHT OF SAID RIDGES, SO THAT WHEN TWO OF SAID PIECES ARE INTERFITTED SUCH THAT A FIRST FACE OF ONE PIECE AND A SECOND FACE OF ANOTHER PIECE ARE IN RIDGE-IN-CHANNEL REGISTER, RELATIVE HORIZONTAL MOVEMENT THEREBETWEEN IS PERMITTED AND WHEN SAID PIECES ARE INTERFITTED SO THAT THE RIDGE ON SAID FIRST FACE AND SAID CHANNEL ARE PLACED IN TRANSVERSE REGISTER, RELATIVE MOVEMENT BETWEEN SAID PIECES IN ANY HORIZONTAL DIRECTION IS PRECLUDED.