The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 1991
Filed:
Aug. 28, 1989
Applicant:
Inventors:
Herman F Burkstaller, Nogal, NM (US);
Emmet F Brieger, Nogal, NM (US);
Assignee:
Burco, Inc., El Paso, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
A01G / ; E02B / ;
U.S. Cl.
CPC ...
405 38 ; 405 50 ; 405265 ;
Abstract
The disclosure is directed to a built-up granular structure having a stable moisture content controlled upper layer. The preferred granular structure includes an improved fine aggregate upper surface layer, a coarse aggregate reservoir layer having a topmost application of perforate adhesive material, and a dry moisture barrier layer having a topmost impervious layer. The entire layered structure is supported by any firm base including compacted soil or an existing playing court structure. A containment wall having screened drainage inlets/outlets surrounds the periphery of the structure.