GARY NELSON ITTNER
Pilots at Nebraska Ave, Los Angeles, CA
License number
California A2278555
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
11656 Nebraska Ave APT 7, Los Angeles, CA 90025
Professional information
Honeycomb Manufacturing Method And Product
US Patent:
4457963, Jul 3, 1984
Filed:
Aug 15, 1983
Appl. No.:
6/523130
Inventors:
Nelson C. Ittner - Blue Jay CA
Gary N. Ittner - Los Angeles CA
Gary N. Ittner - Los Angeles CA
International Classification:
B32B 312
US Classification:
428 36
Abstract:
When conventional honeycomb structures are formed into cylinders, the inner wall made up of the inner edges of the individual honeycombs is circumferentially compressed and the outer wall made up of the outer edges of the honeycombs is circumferentially stretched. As a result, the height of the inner wall increases and the height of the outer wall decreases resulting in a bowing in of the central portion of the cylinder so that the cylinder assumes an hourglass shape. This bowing in can be avoided by corrugating the original ribbon core material in the manufacture of the honeycomb in such a manner that one longitudinal edge of the corrugated ribbon follows a wave form of an amplitude greater than the wave form defining the opposite longitudinal edge. When such formed ribbons are stacked and curved to form a cylindrical structure, the one longitudinal edges will be stretched and the opposite longitudinal edges will be compressed, resulting in an equalizing of the amplitudes of the respective wave forms defining these edges so that the lateral wall of the resulting cylindrical structure in a direction parallel to the axis of the cylinder is rectilinear.
Honeycomb Manufacturing Method
US Patent:
4411381, Oct 25, 1983
Filed:
Apr 2, 1982
Appl. No.:
6/364808
Inventors:
Nelson C. Ittner - Blue Jay CA
Gary N. Ittner - Los Angeles CA
Gary N. Ittner - Los Angeles CA
International Classification:
B32B 312
US Classification:
228181
Abstract:
When conventional honeycomb structures are formed into cylinders, the inner wall made up of the inner edges of the individual honeycombs is circumferentially compressed and the outer wall made up of the outer edges of the honeycombs is circumferentially stretched. As a result, the height of the inner wall increases and the height of the outer wall decreases resulting in a bowing in of the central portion of the cylinder so that the cylinder assumes an hourglass shape. This bowing in can be avoided by corrugating the original ribbon core material in the manufacture of the honeycomb in such a manner that one longitudinal edge of the corrugated ribbon follows a wave form of an amplitude greater than the wave form defining the opposite longitudinal edge. When such formed ribbons are stacked and curved to form a cylindrical structure, the one longitudinal edges will be stretched and the opposite longitudinal edges with be compressed, resulting in an equalizing of the amplitudes of the respective wave forms defining these edges so that the lateral wall of the resulting cylindrical structure in a direction parallel to the axis of the cylinder is rectilinear.
Method Of Aligning Honeycomb Cells
US Patent:
4491265, Jan 1, 1985
Filed:
Jun 6, 1983
Appl. No.:
6/501605
Inventors:
Nelson C. Ittner - Blue Jay CA
Gary N. Ittner - Los Angeles CA
Gary N. Ittner - Los Angeles CA
International Classification:
B23K 112, B23K 3514
US Classification:
228181
Abstract:
A continuous strip of brazing foil is partially folded about transverse parallel fold lines in a repetitive pattern. When this strip is positioned between the nodes of honeycomb cells the fold lines will index the cells into proper alignment for assembly. The brazing strip also serves its normal function of providing brazing material for attaching the assembly to other components.