1
Richard E Huff, Farid Matta: Self-leveling membrane probe. Hewlett Packard Company, March 6, 1990: US04906920 (186 worldwide citation)

A self-leveling membrane probe [10] is disclosed. A carrier [12] supports a translation stage [18] through radial flexure pivots [14]. A flexible membrane [22] having a first and second side is stretched over the translation stage [28] and held in high tension across its central portion compared to ...


2
Richard E Huff, Miklos Perlaki: Membrane probe with automatic contact scrub action. Robert P Sabath, Edward Y Wong, April 17, 1990: US04918383 (145 worldwide citation)

An apparatus [10] for providing an automatic lateral scrubbing motion when a test membrane [22] engages a device under test (DUT) (not shown). Included are a fixed length flexure pivot assembly [30] and a pair of variable length flexure pivot assemblies [38]. Signal traces, signal trace terminals, a ...


3
Richard E Huff: Membrane probe contact bump compliancy system. Hoya Corporation USA, Thomas E Schatzel, January 19, 1993: US05180977 (129 worldwide citation)

The present invention provides a membrane probe contact bump compliancy system implemented in an integrated circuit (IC) testing system to nondestructively test a wafer. This integrated circuit system includes a test controller which is capable of controlling and executing a set of test programs, a ...


4
Richard E Huff, Brian Leslie: Force delivery system for improved precision membrane probe. Hewlett Packard Company, December 25, 1990: US04980637 (94 worldwide citation)

Disclosed is a test probe [10] for testing a test device [not shown], also known as a device under test, while precisely controlling the force exerted by the test probe [10] on the test device. Included is a translation ring [18] as well as a carrier [12] formed to have at least a first side and a s ...


5
Richard L Payne, Richard E Huff, Wayne E Ogren: Slug flow mitigation control system and method. Atlantic Richfield Company, Michael E Martin, August 13, 1996: US05544672 (25 worldwide citation)

Liquid slug flow in oil production well flowlines and the like is controlled by a throttling valve in the flowline upstream of a gas-liquid separator and a differential pressure gauge, densitometer or other device for measuring the presence and the volume of the slug in the flowline. The throttling ...


6
Richard E Huff: Vibrato assembly and acoustic coupling system for stringed instruments. Limbach & Limbach, March 9, 1999: US05880383 (9 worldwide citation)

A vibrato assembly for stringed instruments makes slight and rapid changes in the pitch of the tone produced by a stringed instrument. The vibrato assemblies described herein use flexures to permit movement of an armature relative to a fixed base to produce variations in the tension of the strings a ...


7
Richard E Huff: Vibrato assembly for stringed instruments. Saundra S Hand, July 25, 1995: US05435219 (5 worldwide citation)

A vibrato assembly for stringed instruments makes slight and rapid changes in the pitch of the tone produced by stringed instrument. Previously known vibrato assemblies use knife-edge hinges or rolling ball bearings to produce these variations. The vibrato assemblies described herein use flexure bea ...


8
Richard E Huff: Vibrato assembly and acoustic coupling system for stringed instruments. Saundra S Hand, February 11, 1997: US05602352 (1 worldwide citation)

An acoustic coupling plate extends from the bridge or vibrato to the neck of the instrument. It acoustically couples the strings, the neck, the instrument body, and either a bridge or a vibrato to alter the acoustic attenuation of the instrument and to reduce the amount of multipath distortion. When ...



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