John F Kozak

US Patent:

47692308, Sep 6, 1988

Filed:

Aug 2, 1982

Appl. No.:

6/404614

Inventors:

Nicholas P. Greco - Pittsburgh PA
Byung K. Ahn - Pittsburgh PA
John J. Kozak - Wexford PA

Assignee:

Koppers Company, Inc. - Pittsburgh PA

International Classification:

C01G 2800

US Classification:

423617

Abstract:

Arsenic acid is formed from arsenous acid and water under oxygen pressure with catalytic amounts of nitric acid and a halide whereby the nitric oxide by-product is regenerated to nitric acid for contact with fresh arsenous acid.

US Patent:

40246876, May 24, 1977

Filed:

Jun 26, 1975

Appl. No.:

5/590417

Inventors:

John Kozak - Turtle Creek PA

International Classification:

E04C 310
E04C 326

US Classification:

52228

Abstract:

An architectural system comprises a number of free-standing wall modules of cruciform configuration, with each of the wall modules having a bearing surface adjacent the end of each of its arms. A square or rectangular supporting beam arrangement or network is disposed with each of its corners engaging one of the bearing surfaces. A floor/ceiling module is supported on the beam arrangement. The cruciform wall modules are oriented and spaced from one another to define a floor area extending therebetween and having its perimetric edges angularly displaced about 45. degree. relative to the perimetric edges of the beam network such that the floor area is substantially wider than the length of one of the beam segments comprising the beam network.

US Patent:

40019861, Jan 11, 1977

Filed:

Jun 10, 1974

Appl. No.:

5/477983

Inventors:

John Kozak - Turtle Creek PA

International Classification:

E04C 110
E04B 134

US Classification:

52 73

Abstract:

A preformed structural panel comprises a generally rectangular precast slab having sufficient thickness for load-carrying capability, and a joining arrangement extending across the slab and spaced from opposed sides thereof. About one-half of the joining arrangement is a tapered solid region and the remainder of the joining arrangement is a complementarily tapered void region. The solid joining region is capable of interfitting tightly within the void region of a similar structural panel, and the void region is capable of receiving the solid region of the other panel in tightly interfitting relationship, so that the structural panel when thus interfitted is positively prevented from angular displacement with respect to such other panel. The invention also contemplates unique building structures constructed from such panels.