Robert H. Welker

Person

Sugarland, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Newtonian thrust cowl array
- Patent number 7,493,914
- Issue date Feb 24, 2009
- Welker, Inc.
- Robert H. Welker
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Adjustable flow diffuser
- Patent number 6,439,267
- Issue date Aug 27, 2002
- Welker Engineering Company
- Robert H. Welker
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Flow diffuser
- Patent number 6,289,934
- Issue date Sep 18, 2001
- Welker Engineering Company
- Robert H. Welker
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Diaphragm regulator with removable diffuser
- Patent number 6,250,330
- Issue date Jun 26, 2001
- Welker Engineering Company
- Robert H. Welker
- G05 - CONTROLLING REGULATING
Information Patent Grant
Method and apparatus for quieting turbulence in a gas flow line valve
- Patent number 5,924,673
- Issue date Jul 20, 1999
- Welker Engineering Company
- Robert H. Welker
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Flow diffuser and valve
- Patent number 5,769,388
- Issue date Jun 23, 1998
- Welker Engineering Company
- Robert H. Welker
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method and apparatus for quieting turbulence in a gas flow line valve
- Patent number 5,730,416
- Issue date Mar 24, 1998
- Welker Engineering Company
- Robert H. Welker
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Flow diffuser for redistributing stratified liquids in a pipeline
- Patent number 5,454,640
- Issue date Oct 3, 1995
- Robert H. Welker
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Flow distribution method and apparatus reducing downstream turbulence
- Patent number 5,307,830
- Issue date May 3, 1994
- Welker Engineering Company
- Robert H. Welker
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Power supply system for an optical inspection apparatus
- Patent number 4,908,567
- Issue date Mar 13, 1990
- Welker Engineering Company
- Robert H. Welker
- G02 - OPTICS
Information Patent Grant
Explosion-proof optical fiber connector for a light source
- Patent number 4,850,669
- Issue date Jul 25, 1989
- Welker Engineering Company
- Robert H. Welker
- G02 - OPTICS
Information Patent Grant
Optical inspection apparatus
- Patent number 4,777,567
- Issue date Oct 11, 1988
- Welkee Engineering Company
- Robert H. Welker
- G02 - OPTICS
Information Patent Grant
Apparatus for visual inspection of closed machinery
- Patent number 4,678,290
- Issue date Jul 7, 1987
- Welker Engineering Company
- Robert H. Welker
- G02 - OPTICS
Information Patent Grant
Automatic insertion device
- Patent number 4,631,967
- Issue date Dec 30, 1986
- Welker Engineering Company
- Robert H. Welker
- G01 - MEASURING TESTING
Information Patent Grant
Sampler incorporating pressure balanced check valve
- Patent number 4,557,151
- Issue date Dec 10, 1985
- Welker Engineering Company
- Robert H. Welker
- G01 - MEASURING TESTING
Information Patent Grant
Fluid pump mechanism
- Patent number 4,525,127
- Issue date Jun 25, 1985
- Welker Engineering Company
- Robert H. Welker
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Resilient chamber fluid sampler having vacuum breaker apparatus
- Patent number 4,470,773
- Issue date Sep 11, 1984
- Walker Engineering Company
- Robert H. Welker
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Volume analyzer for crude oil sampling system including bite checki...
- Patent number 4,463,603
- Issue date Aug 7, 1984
- Welker Engineering Company
- Robert H. Welker
- G01 - MEASURING TESTING
Information Patent Grant
Free water volume analyzer
- Patent number 4,463,599
- Issue date Aug 7, 1984
- Welker Engineering Company
- Robert H. Welker
- E21 - EARTH DRILLING MINING
Information Patent Grant
Reinforced plug for flow regulators
- Patent number 4,442,999
- Issue date Apr 17, 1984
- Welker Engineering Company
- Robert H. Welker
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Sampler incorporating a purge system
- Patent number 4,440,032
- Issue date Apr 3, 1984
- Welker Engineering Company
- Robert H. Welker
- E21 - EARTH DRILLING MINING
Information Patent Grant
Sample collection apparatus
- Patent number 4,403,519
- Issue date Sep 13, 1983
- Welker Engineering Company
- Robert H. Welker
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Sampler apparatus
- Patent number 4,403,518
- Issue date Sep 13, 1983
- Welker Engineering Company
- Robert H. Welker
- G01 - MEASURING TESTING
Information Patent Grant
Axial flow regulator improvements including restrictor
- Patent number 4,395,016
- Issue date Jul 26, 1983
- Welker Engineering Company
- Robert H. Welker
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Probe insertion apparatus
- Patent number 4,387,592
- Issue date Jun 14, 1983
- Welker Engineering Company
- Robert H. Welker
- G01 - MEASURING TESTING
Information Patent Grant
Liquid sample collection apparatus
- Patent number 4,172,670
- Issue date Oct 30, 1979
- Robert H. Welker
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
NEWTONIAN THRUST COWL ARRAY
- Publication number 20090137165
- Publication date May 28, 2009
- WELKER, INC.
- Robert H. Welker
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Application
NEWTONIAN THRUST COWL ARRAY
- Publication number 20070017209
- Publication date Jan 25, 2007
- Welker Engineering Company
- Robert H. Welker
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Application
Adjustable flow diffuser
- Publication number 20010047836
- Publication date Dec 6, 2001
- Robert H. Welker
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Robert H. Welker

Person

Patents Grantslast 30 patents

Newtonian thrust cowl array

Adjustable flow diffuser

Flow diffuser

Diaphragm regulator with removable diffuser

Method and apparatus for quieting turbulence in a gas flow line valve

Flow diffuser and valve

Method and apparatus for quieting turbulence in a gas flow line valve

Flow diffuser for redistributing stratified liquids in a pipeline

Flow distribution method and apparatus reducing downstream turbulence

Power supply system for an optical inspection apparatus

Explosion-proof optical fiber connector for a light source

Optical inspection apparatus

Apparatus for visual inspection of closed machinery

Automatic insertion device

Sampler incorporating pressure balanced check valve

Fluid pump mechanism

Resilient chamber fluid sampler having vacuum breaker apparatus

Volume analyzer for crude oil sampling system including bite checki...

Free water volume analyzer

Reinforced plug for flow regulators

Sampler incorporating a purge system

Sample collection apparatus

Sampler apparatus

Axial flow regulator improvements including restrictor

Probe insertion apparatus

Liquid sample collection apparatus

Patents Applicationslast 30 patents

NEWTONIAN THRUST COWL ARRAY

NEWTONIAN THRUST COWL ARRAY

Adjustable flow diffuser