Raymond J Cipra

US Patent:

7063870, Jun 20, 2006

Filed:

May 25, 2004

Appl. No.:

10/852933

Inventors:

Mark L. La Forest - Granger IN, US
Charles A. Parker - Granger IN, US
Frank Dillon - Granger IN, US
Thomas H. Siegmund - West Lafayette IN, US
Raymond J. Cipra - West Lafayette IN, US
Alan E. Fatz - Centerville OH, US
Peter F. Braunisch - Rochester Hill MI, US
Tobey Cordell - Dayton OH, US

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

C23C 16/26

US Classification:

4272491, 4272493, 4273722, 42725512, 264454, 264478, 264494, 264645

Abstract:

Annular brake disc preform (), wherein 40 to 80 layers of reinforcement fibers of at least two different lengths () ranging from 10–60 mm are distributed in a planar gradient throughout the body of the preform, with the reinforcement fibers located near the exterior planes of the disc being predominately shorter fibers () and with the reinforcement fibers located in the central planes of the disc being predominately longer fibers (). Also, process of making carbon-carbon composite preforms by: providing chopped pitch or PAN fibers () of at least two different lengths; directing a robotic spraying apparatus to spray the chopped fibers into an annular mold () in 40 to 80 concentric iterations of chopped fiber deposition to provide a matrix of fibers in the mold; depositing a curable binder into the mold to intermix the binder with the fiber matrix; compressing the fiber matrix and curable binder within the mold; curing the binder to form a preform matrix; filling the preform matrix with pitch to form a pitch matrix; and subjecting the pitch matrix to chemical vapor deposition to form a carbon-carbon composite preform ().

US Patent:

7198739, Apr 3, 2007

Filed:

May 25, 2004

Appl. No.:

10/852992

Inventors:

Mark L. La Forest - Granger IN, US
Nabil Abu Gharbieh - Granger IN, US
Raymond J. Cipra - West Lafayette IN, US
Alan E. Fatz - Centerville OH, US
Thomas H. Siegmund - West Lafayette IN, US

Assignee:

Honeywell International Inc. - Morris Township NJ

International Classification:

B29C 70/12
B29C 70/34
B32B 3/02

US Classification:

264 292, 264 293, 264 297, 264119, 264121, 264131, 264257, 264258, 156 8926, 156 93

Abstract:

Preform for carbon-carbon composite part () comprising multiple layers of fibrous mats () wherein each mat () comprises random carbon-containing fibrous matrix () having polymeric binder distributed therein and wherein adjacent mats () are bound together by additional polymer binder, stitching, and interlocking tabs. Also, method of manufacturing thick multi-layer composite preform, by: providing optionally reconfigurable tool including perforated screen through which vacuum can be drawn; delivering chopped fibers (b) to the tool while drawing vacuum therethrough to form fibrous object; delivering binder (c) to the fibrous object; melting or curing the binder (d) to make a fibrous mat (); assembling plurality of the fibrous mats () and additional binder into the shape of a preform (e); and heat-pressing the resulting mat assembly (f) into finished thick preform ().

US Patent:

7997891, Aug 16, 2011

Filed:

Apr 11, 2008

Appl. No.:

12/101697

Inventors:

Jeffery M. Gallagher - Greenfield IN, US
Raymond J. Cipra - West Lafayette IN, US
Thomas H. Siegmund - West Lafayette IN, US

Assignee:

Purdue Research Foundation - West Lafayette IN

International Classification:

B29C 51/10
B29C 51/36

US Classification:

425388, 4253871, 264553, 264554

Abstract:

A molding process and apparatus suitable for use in molding processes, including rapid prototyping processes and short run production processes. The molding process and apparatus entail the use of a reconfigurable screen tool having a housing defining a manifold cavity and a plurality of substantially parallel pins, each having a head protruding from the housing and a shank protruding into the housing. The heads of the pins define a screen surface through which air is able to flow, for example, through gaps between adjacent heads or through internal passages within the pins. The process further includes axially moving the pins to configure the screen surface, preventing further axial movement of the pins relative to each other, and then drawing a vacuum within the manifold cavity and creating a vacuum at the screen surface.

US Patent:

8281907, Oct 9, 2012

Filed:

Dec 3, 2007

Appl. No.:

11/987647

Inventors:

Slawomir T. Fryska - Granger IN, US
Adam Mather - Bloomfield MI, US
Raymond J. Cipra - West Lafayette IN, US
Thomas H. Siegmund - West Lafayette IN, US
Allen H. Simpson - Buchanan MI, US
Mark L. LaForest - Granger IN, US

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

F16D 65/12

US Classification:

188218XL, 188218 A, 294191, 2952506

Abstract:

A brake disk () includes an annular core () formed from a plurality of non-annular pieces (), a first friction disk () mounted on a first side of the annular core (), a second friction disk () mounted on a second side of the core () opposite from the first friction disk (), and at least one fastener () connecting the first and second friction disks () to the core (). Also a method of assembling a brake disk from a core and friction elements.

US Patent:

20050093188, May 5, 2005

Filed:

Jan 23, 2004

Appl. No.:

10/764149

Inventors:

Mark Forest - Granger IN, US
Nabil Gharbieh - Granger IN, US
Slawomir Fryska - Granger IN, US
Allen Simpson - Buchanan MI, US
Barry Soos - Mishawaka IN, US
Alan Fatz - Centerville OH, US
Raymond Cipra - West Lafayette IN, US
Thomas Siegmund - West Lafayette IN, US

International Classification:

C01B031/00

US Classification:

264029100, 425438000, 425412000

Abstract:

The present invention makes use of loose fibrous material (for instance, chopped fibers) as reinforcement matrix material in the manufacture of carbon-carbon composites. In accordance with this invention, a constraint fixture is provided which can be separated from the mold. The constraint fixture has an internal shape corresponding to the shape of a desired preform component, with the internal shape being defined by a bottom plate (), an annular ejector plate (′), a inner wall (), an outer wall (), and an annular top plate (′). The constraint fixture is normally made of metal, porous ceramic, or carbon material. The constraint fixture of the mold holds the loose matrix materials (fibers, along with any fillers and/or additives). The mold assembly itself is segmented, so that the constraint, fixture and the loose fill materials in the fixture can be removed and subjected to further processing as a unit. Such further processing may include Chemical Vapor Deposition or resin or pitch infiltration or Resin Transfer Molding. The preform matrix may remain in the constraint fixture through such processing steps as densification and until it is removed therefrom for final machining.

US Patent:

50525395, Oct 1, 1991

Filed:

Oct 24, 1989

Appl. No.:

7/426749

Inventors:

Geoffrey S. Fillingsness - Indianapolis IN
C. Christopher Brandt - Indianapolis IN
Raymond J. Cipra - West Lafayette IN

Assignee:

Melvin Simon & Associates, Inc. - Indianapolis IN

International Classification:

B66B 2100

US Classification:

198328

Abstract:

A single endless series of steps for up and down flights has inboard end spacing control links, each operated by a gear arrangement at transitions between curved and straight paths of step travel. Steps are molded plastic cores with top mounted tread caps, both the cores and caps being of colors as desired, and with light transmission characteristics from opaque to transparent, as desired. Inter-engaging edges on treads and risers are of curved shape facilitating the transition from straight to curved runs of steps. Break-away stripper comb fingers at landings terminate escalator operation when an object becomes jammed between a step and a finger and breaks a finger. Spring-loaded skirt guards at the sides of steps, and step spacing monitors, include wear indicators. The ascending and descending flights of steps are supported by structural tubes extending between floors, with no other support for the flights. Stabilizer legs, rollers and tracks under the steps maintain the horizontal attitude of the steps.

US Patent:

20140339014, Nov 20, 2014

Filed:

May 19, 2014

Appl. No.:

14/281408

Inventors:

- West Lafayette IN, US
Somesh Khandelwal - Sunnyvale CA, US
Thomas Siegmund - West Lafayette IN, US
John Stuart Bolton - West Lafayette IN, US
Raymond J. Cipra - West Lafayette IN, US

Assignee:

PURDUE RESEARCH FOUNDATION - West Lafayette IN

International Classification:

E04B 1/84

US Classification:

181292

Abstract:

A cellular material barrier system for reducing sound transmission. The cellular material system includes a planar cellular metamaterial arrangement which includes at least one unit cell, the unit cell includes a sound normalizing arrangement, and a planar metamaterial arrangement coupled to the sound normalizing arrangement on a first side, the planar metamaterial arrangement includes a plate, and a frame affixed to the plate, the sound normalizing arrangement configured to normalize incident sound received at non-normal angle to thereby convey sound at normal angles to the planar metamaterial arrangement, the unit cell further comprising a back layer that is coupled to the sound normalizing arrangement on a second side, opposite the first side, the back layer is made from a porous material, including at least one of a fibrous layer, polymeric foams, ceramic foams, and metallic foams.