Charles Robert Welch

US Patent:

7092106, Aug 15, 2006

Filed:

Nov 17, 2003

Appl. No.:

10/713793

Inventors:

Cary B. Cox - Clinton MS, US
James A. Evans - Tallulah LA, US
Charles R. Welch - Vicksburg MS, US
Barry W. McCleave - Vicksburg MS, US
Lewis B. Smithhart - Utica MS, US

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

G01B 11/24

US Classification:

356602, 356601

Abstract:

An application of phase profilometry to determine the 3-D configuration of normally obscured structure. In one application, the undercarriage of a vehicle is captured in a 3-D profile while the vehicle is operating normally. The system may use a digital camera; a computer for control, communications, processing, comparing configurations and database storage; a broadband light source; and a device positioned between the light and structure that enables an alternating strip or strips of light and shadows to impinge the obscured surface. A preferred embodiment uses a single straight edge as the device. In addition to profiling the undercarriage of a vehicle and comparing it to an expected configuration of a like vehicle, the system may be used for such diverse applications as determination of correct toll at toll booths, quality inspection in an assembly line, safety and security inspections, and access control.

US Patent:

8209911, Jul 3, 2012

Filed:

Jun 4, 2010

Appl. No.:

12/793790

Inventors:

Charles R. Welch - Vicksburg MS, US
Kevin Abraham - Vicksburg MS, US
Robert M. Ebeling - Vicksburg MS, US
Karen Buehler - Northbridge MA, US
Claudia Quigley - Lexington MA, US

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

E04C 3/36
E04G 21/00

US Classification:

52 221, 5274517

Abstract:

A structural element employing hydrostatic pressure to compress cohesion-less particles to significantly increase the load carrying capacity of the element along a load-bearing axis, a system for deploying said structural element and a method for deploying said structural element using the system.

US Patent:

20030137673, Jul 24, 2003

Filed:

Dec 13, 2002

Appl. No.:

10/318214

Inventors:

Cary Cox - Hinds MS, US
Lewis Smithhart - Utica MS, US
Barry McCleave - Vicksburg MS, US
Charles Welch - Vicksburg MS, US

International Classification:

G01B011/24

US Classification:

356/601000, 356/604000

Abstract:

Provided in a preferred embodiment is an application of phase or “shadow” profilometry to determine a 3-D profile of structure instantaneously. In one application, a vehicle-mounted system captures a 3-D profile while operating normally. The system may use a digital camera, a computer for processing and storage, a broadband light source, and a device positioned between the light and structure that enables strips of light to impinge on the structure. A preferred embodiment uses a single straight edge as the device, casting a straight line shadow. In addition to profiling road surfaces, the bottom of hydraulic models have been profiled even while being disturbed with a wave generator. It may be integrated with other devices such as a pro-active suspension system for civilian, military, and construction vehicles. Further, use with tiltmeters and GPS receivers provides data useful for engineering or construction management.

US Patent:

55289355, Jun 25, 1996

Filed:

Nov 8, 1995

Appl. No.:

8/555558

Inventors:

Charles R. Welch - Vicksburg MS
Billy D. Fuller - Vicksburg MS
Howard G. White - Vicksburg MS

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

G01P 1508

US Classification:

73493

Abstract:

A stress and motion gauge formed in a unitary housing has a free field sts gauge and a velocity gauge formed in the housing in proximate side by side arrangement. The stress and velocity gauge of the invention measures, in a single package, both normal stress and material velocity at essentially the same location in a material.

US Patent:

53616421, Nov 8, 1994

Filed:

Aug 3, 1993

Appl. No.:

8/100948

Inventors:

Charles R. Welch - Vicksburg MS

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

G01L 104

US Classification:

73862632

Abstract:

The present invention provides a free field stress gauge that can operate in a medium with ambient normal stress fields up to 10 kilobars. The invention uses two machined parts, a top annulus cover disc portion and an active bottom disc portion such that the annulus top cover disc covers the active bottom disc portion but allows a solid central sensing column to be exposed to ambient conditions. The disc portions have a dual sealing means to protect the strain gauges therein from fluid ingress. The gauge is suitable for measuring stresses of soil and rock formations as well as concrete, asphalt or other materials in either a static or dynamic regime. The stress gauge is designed for high uni-axial stress measurements, improved frequency response, have low hysteretic induced effects in measurements and be a thinner gauge.

US Patent:

54470650, Sep 5, 1995

Filed:

Sep 17, 1993

Appl. No.:

8/123125

Inventors:

Charles R. Welch - Vicksburg MS
Howard G. White - Vicksburg MS
Billy D. Fuller - Vicksburg MS

Assignee:

The United States of America as represented by the Secretaryof the Army - Washington DC

International Classification:

G01P 1508

US Classification:

73493

Abstract:

Disclosed is a particle velocity gauge for measuring long term (over one lisecond duration) particle velocities in solids which are subjected to high-powered sources, such as high-explosive detonations. The gauge consists of a protective canister, external flexible cable-protection system, and rigid internal strain-isolation system. The protective canister is disc-shaped and consists of a circular bottom section with central cavity, and a removable cover with o-ring seal. The strain-isolation system consists of a rigid mounting plate atop a TEFLON bearing, and is affixed to the bottom of the central cavity. A commercial accelerometer is mounted on the rigid mounting-plate to monitor the acceleration of the canister. The gauge is capable of operating a medium normal stresses to 90,000 psi, and offers improvements in measurement fidelity over previous gauges because of the design of the internal rigid strain-isolation system, and because the invention's density, overall shape and external dimension along its measuring axis, and its flexible cable protection system allows it to follow the mediums motions more faithfully. The gauge is also more robust than most prior gauges.

US Patent:

53118561, May 17, 1994

Filed:

Oct 20, 1992

Appl. No.:

7/963364

Inventors:

Howard G. White - Vicksburg MS
Alan P. Ohrt - Vicksburg MS
Charles R. Welch - Vicksburg MS

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

G01M 1900
F41B 1100

US Classification:

124 56

Abstract:

A large diameter gas gun has a triggering mechanism for quickly and effecely releasing a large bore projectile which is accelerated under gas pressure to impact upon a target area to produce a substantial shock field.

US Patent:

20210336448, Oct 28, 2021

Filed:

Apr 1, 2021

Appl. No.:

17/301398

Inventors:

- Hermosa Beach CA, US
Charles Welch - Hermosa Beach CA, US

International Classification:

H02J 7/00
H01M 10/42
H01M 10/48

Abstract:

A charging system for charging a battery pack is provided. The charging system comprises a charging unit configured to charge and discharge the battery pack having a plurality of rechargeable cells. The charging system further comprises a balancing unit electrically coupled to the charging unit and configured to balance voltage across each rechargeable cell of the plurality of rechargeable cells, and a display unit electrically coupled to the charging unit and configured to display one or more parameters indicative of a charge and discharge status of the battery pack.