Edwin Haas

US Patent:

55238939, Jun 4, 1996

Filed:

Aug 24, 1994

Appl. No.:

8/294038

Inventors:

Edwin G. Haas - Seaford NY

Assignee:

Northrop Grumman Corporation - Los Angeles CA

International Classification:

G02B 702

US Classification:

359820

Abstract:

An optical mounting system is configured so as to locate a 360. degree. shoulder all around the optical element periphery in both the object and image sides of the optical element. The shoulder allows expansion or contraction of the optical element both in the thickness direction of the optical element and in the direction normal to the optical axis when installed in the mounting assembly. Three small metal clips are used to maintain centering of the optics, the thermal expansion and contraction of these clips being coordinated with the clip geometry so that the optical material remains centered without induced stress or free play at either room temperature or at the operating temperature.

US Patent:

55467849, Aug 20, 1996

Filed:

Dec 5, 1994

Appl. No.:

8/349434

Inventors:

Edwin G. Haas - Seaford NY
Martin Kesselman - Commack NY

Assignee:

Grumman Aerospace Corporation - Los Angeles CA

International Classification:

B21D 3702
B21D 3714

US Classification:

72413

Abstract:

This invention details a computer controlled self adjusting sheet metal forming die which can provide rapid contour changes. It eliminates the need to manufacture, store, and change individual forming dies for forming different contours, and comprises a computer control device which sends appropriately timed signals to translate each contour element so that a three dimension surface is formed by a discrete matrix of individual pins. This self adjusting sheet metal forming die is used on a sheet metal press wherein sheet metal can be formed by pressing or stretch forming the metal against the contoured surface.

US Patent:

62414356, Jun 5, 2001

Filed:

Mar 25, 1998

Appl. No.:

9/048403

Inventors:

Chien Y. Huang - Great Neck NY
William C. Van Nostrand - Ronkonkoma NY
Edwin G. Haas - Sayville NY

Assignee:

Vought Aircraft Industries, Inc. - Dallas TX

International Classification:

B23C 900
G05B 1302
B24B 4900

US Classification:

409141

Abstract:

A method for automatically minimizing an undesirable motion of a workpiece during a machining operation, and a universal adaptive machining chatter control fixture that operates in accordance with the method. The method comprises the steps of mounting the workpiece to an active, supporting structure, and then machining the workpiece. During the step of machining, an undesirable motion of the workpiece is sensed in the supporting structure. Thereafter, a compensating motion is applied to the supporting structure for minimizing the undesirable motion of the workpiece. The chatter control fixture can be attached to various types of machine tool devices, without requiring that the machine tool devices be retrofitted, and operates to minimize undesirable motions of the workpiece independently of the machine tool devices.

US Patent:

58254900, Oct 20, 1998

Filed:

Jun 7, 1995

Appl. No.:

8/473059

Inventors:

Edwin G. Haas - Seaford NY
Theodore W. Hilgeman - Centerport NY
Robert E. Ryan - Levittown NY

Assignee:

Northrop Grumman Corporation - Los Angeles CA

International Classification:

G01B 902

US Classification:

356345

Abstract:

An interferometer comprising a base forming an interior, and first and second optical members located in the interior of the base. The interferometer further comprises a first retainer assembly connecting the first optical member to the base, translation means for moving the second optical member relative the first optical member to vary the distance between the first and second optical members, and a second retainer assembly connecting the second optical member to the translation means. The preferred mechanical configuration and design features of the interferometer produce a very durable instrument that can rapidly scan and accurately filter light across a wide bandwidth. This uniquely designed instrument combines high speed switching, high resolution, wide bandwidth, and adjustable damping capabilities in a durable flight capable instrument.

US Patent:

62093800, Apr 3, 2001

Filed:

Feb 28, 2000

Appl. No.:

9/515084

Inventors:

John M. Papazian - Great Neck NY
Edwin Gerard Haas - Sayville NY
Robert Charles Schwarz - Huntington NY
Jerrell A. Nardiello - Hicksville NY
John Melnichuk - Bethpage NY

Assignee:

Northrop Grumman Corporation - Los Angeles CA

International Classification:

B21D 3700
B21D 4704

US Classification:

72413

Abstract:

Tooling apparatus for three-dimensionally forming a honeycomb core article includes a die having an array of elongated mutually parallel translating pins, each having a pin tube terminating at a tip end and arranged in a matrix for longitudinal movement between retracted and extended positions. The tip ends of the array of translating pins are engageable with an end surface of the honeycomb core article when in the extended position. Each tip end includes a pin tip assembly including an elongated pin tip member having an outwardly projecting bearing surface of shape conformable material on which is mounted a protective thrust pad, an opposed bottom surface, and an outer peripheral surface extending between the bearing surface and the bottom surface. A cup-shaped retainer having a base and an upstanding wall with an outer peripheral surface is provided for mounting engagement with the tip end of each pin tube and has an internal recess with a base surface and an internal peripheral surface. The pin tip member is mounted on the retainer, the outer peripheral surface of the pin tip member engaged with the internal peripheral surface of the retainer and the bottom surface of the pin tip member engaged with the base surface.