Ralph Roper

Person

Indianapolis, IN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Soft-start, soft-return gas spring
- Patent number 6,622,831
- Issue date Sep 23, 2003
- Ralph Roper
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Soft-start, soft-return gas spring
- Patent number 6,390,457
- Issue date May 21, 2002
- Ralph Roper
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Apparatus and method for cushioning the action of draw dies operati...
- Patent number 6,068,245
- Issue date May 30, 2000
- Ralph Roper
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Apparatus and method for forming and hydropiercing a tubular frame...
- Patent number 5,890,387
- Issue date Apr 6, 1999
- Aquaform Inc.
- Ralph E. Roper
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Apparatus and method for forming a tubular frame member
- Patent number 5,865,054
- Issue date Feb 2, 1999
- Aquaform Inc.
- Ralph E. Roper
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Apparatus for forming a tubular frame member
- Patent number 5,802,898
- Issue date Sep 8, 1998
- Aquaform, Inc.
- Ralph E. Roper
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Controlled material flow hydroforming
- Patent number 5,533,372
- Issue date Jul 9, 1996
- AK Steel Corporation
- Ralph E. Roper
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Apparatus for forming a tubular frame member
- Patent number 5,499,520
- Issue date Mar 19, 1996
- Aquaform Inc.
- Ralph E. Roper
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Apparatus and method for forming a tubular member
- Patent number 5,481,892
- Issue date Jan 9, 1996
- Ralph E. Roper
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Apparatus and method for hydroforming sheet metal
- Patent number 5,372,026
- Issue date Dec 13, 1994
- Armco Steel Company
- Ralph E. Roper
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Controlled material flow hydroforming
- Patent number 5,372,027
- Issue date Dec 13, 1994
- Armco Steel Company, L.P.
- Ralph E. Roper
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Apparatus and method for forming a tubular frame member
- Patent number 5,353,618
- Issue date Oct 11, 1994
- Armco Steel Company, L.P.
- Ralph E. Roper
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Apparatus and method for forming a tubular frame member
- Patent number 5,239,852
- Issue date Aug 31, 1993
- Armco Steel Company, L.P.
- Ralph E. Roper
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Apparatus and method for hydroforming sheet metal
- Patent number 5,157,969
- Issue date Oct 27, 1992
- Armco Steel Co., L.P.
- Ralph E. Roper
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Stretch form die
- Patent number 4,576,030
- Issue date Mar 18, 1986
- Wallace Expanding Machines, Inc.
- Ralph E. Roper
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Bearing burnishing method and apparatus
- Patent number 4,536,931
- Issue date Aug 27, 1985
- Wallace Expanding Machines, Inc.
- Ralph E. Roper
- B24 - GRINDING POLISHING
Information Patent Grant
Apparatus for making metal outers and inners
- Patent number 4,295,357
- Issue date Oct 20, 1981
- General Tire & Rubber Co.
- Ralph E. Roper
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Process and apparatus for making metal outers and inners
- Patent number 4,238,949
- Issue date Dec 16, 1980
- The General Tire & Rubber Company
- Ralph E. Roper
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Process for expanding wheel components
- Patent number 4,062,215
- Issue date Dec 13, 1977
- Wallace Expanding Machines, Inc.
- Ralph E. Roper
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Soft-start, soft-return gas spring
- Publication number 20040012132
- Publication date Jan 22, 2004
- Ralph Roper
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Soft-start, soft-return gas spring
- Publication number 20020130453
- Publication date Sep 19, 2002
- Ralph Roper
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Ralph Roper

Person

Patents Grantslast 30 patents

Soft-start, soft-return gas spring

Soft-start, soft-return gas spring

Apparatus and method for cushioning the action of draw dies operati...

Apparatus and method for forming and hydropiercing a tubular frame...

Apparatus and method for forming a tubular frame member

Apparatus for forming a tubular frame member

Controlled material flow hydroforming

Apparatus for forming a tubular frame member

Apparatus and method for forming a tubular member

Apparatus and method for hydroforming sheet metal

Controlled material flow hydroforming

Apparatus and method for forming a tubular frame member

Apparatus and method for forming a tubular frame member

Apparatus and method for hydroforming sheet metal

Stretch form die

Bearing burnishing method and apparatus

Apparatus for making metal outers and inners

Process and apparatus for making metal outers and inners

Process for expanding wheel components

Patents Applicationslast 30 patents

Soft-start, soft-return gas spring

Soft-start, soft-return gas spring