Ronald W. Umphrey

Person

Fairmont, WV, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for rotary drill guidance
- Patent number 4,471,843
- Issue date Sep 18, 1984
- Conoco Inc.
- Emrys H. Jones
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rotary drill indexing system
- Patent number 4,461,359
- Issue date Jul 24, 1984
- Conoco Inc.
- Emrys H. Jones
- E21 - EARTH DRILLING MINING
Information Patent Grant
Slurry recovery from a circular sump
- Patent number 4,381,161
- Issue date Apr 26, 1983
- Conoco Inc.
- Richard E. Doerr
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Pretreatment for fracturing coal seams
- Patent number 4,283,089
- Issue date Aug 11, 1981
- Conoco, Inc.
- Raymond L. Mazza
- E21 - EARTH DRILLING MINING
Information Patent Grant
Sprocket-type loop carrier
- Patent number 4,169,631
- Issue date Oct 2, 1979
- Continental Oil Company
- David L. McCain
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Hose and linkage support apparatus for a sump vehicle
- Patent number 4,089,053
- Issue date May 9, 1978
- Continental Oil Company
- Ronald W. Umphrey
- E21 - EARTH DRILLING MINING
Information Patent Grant
Low profile sump with submerged transverse roll crusher
- Patent number 3,998,395
- Issue date Dec 21, 1976
- Continental Oil Company
- Ronald W. Umphrey
- E21 - EARTH DRILLING MINING
Information Patent Grant
Scalping apparatus for a low profile two-roll crusher
- Patent number 3,998,396
- Issue date Dec 21, 1976
- Continental Oil Company
- Ronald W. Umphrey
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Grant
Conveyor for flexible slurry hose
- Patent number 3,955,593
- Issue date May 11, 1976
- Continental Oil Company
- Ronald W. Umphrey
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Apparatus for crushing solids in a liquid medium
- Patent number 3,931,936
- Issue date Jan 13, 1976
- Continental Oil Company
- Eston F. Petry
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Ronald W. Umphrey

Person

Patents Grantslast 30 patents

Method and apparatus for rotary drill guidance

Rotary drill indexing system

Slurry recovery from a circular sump

Pretreatment for fracturing coal seams

Sprocket-type loop carrier

Hose and linkage support apparatus for a sump vehicle

Low profile sump with submerged transverse roll crusher

Scalping apparatus for a low profile two-roll crusher

Conveyor for flexible slurry hose

Apparatus for crushing solids in a liquid medium