Jon A. Schmidgall

Person

Mediapolis, IA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Vibration system for concrete pipe making machines
- Patent number 8,926,311
- Issue date Jan 6, 2015
- Hawkeye Concrete Products Co.
- Jon A. Schmidgall
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Apparatus and method for protecting lined concrete pipe during the...
- Patent number 7,832,703
- Issue date Nov 16, 2010
- Hawkeye Concrete Products Co.
- Jon A. Schmidgall
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Vibration system for concrete pipe making machines
- Patent number 7,083,406
- Issue date Aug 1, 2006
- Hawkeye Concrete Products Co.
- David Stoller
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Apparatus and method for removing joint rings from cured concrete p...
- Patent number 6,817,589
- Issue date Nov 16, 2004
- Hawkeye Concrete Products Co.
- Jon A. Schmidgall
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Collapsible core for concrete pipe making apparatus
- Patent number 5,720,993
- Issue date Feb 24, 1998
- Hawkeye Concrete Products Co.
- Jon A. Schmidgall
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Collapsible core seam cover for concrete making apparatus
- Patent number 5,679,279
- Issue date Oct 21, 1997
- Hawkeye Concrete Products Co.
- Jon A. Schmidgall
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Automated system for handling and cleaning concrete pipe-making com...
- Patent number 5,587,185
- Issue date Dec 24, 1996
- Hawkeye Concrete Products Co.
- Hartzell H. Schmidgall
- B08 - CLEANING
Information Patent Grant
Concrete pipe making machine
- Patent number 4,708,621
- Issue date Nov 24, 1987
- Hawkeye Concrete Products Co.
- Hartzell H. Schmidgall
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Apparatus for lining pipe
- Patent number 4,657,498
- Issue date Apr 14, 1987
- Hawkeye Concret Products Co.
- Jon A. Schmidgall
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method for lining pipe
- Patent number 4,578,235
- Issue date Mar 25, 1986
- Hawkeye Concrete Products Co.
- Jon A. Schmidgall
- B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

Information Patent Application
APPARATUS AND METHOD FOR PROTECTING LINED CONCRETE PIPE DURING THE...
- Publication number 20100178373
- Publication date Jul 15, 2010
- Hawkeye Concrete Products Co.
- JON A. SCHMIDGALL
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
VIBRATION SYSTEM FOR CONCRETE PIPE MAKING MACHINES
- Publication number 20050058740
- Publication date Mar 17, 2005
- David Stoller
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Application
Apparatus and method for removing joint rings from cured concrete p...
- Publication number 20030155671
- Publication date Aug 21, 2003
- Hawkeye Concrete Products Co.
- Jon A. Schmidgall
- B28 - WORKING CEMENT, CLAY, OR STONE

Jon A. Schmidgall

Person

Patents Grantslast 30 patents

Vibration system for concrete pipe making machines

Apparatus and method for protecting lined concrete pipe during the...

Vibration system for concrete pipe making machines

Apparatus and method for removing joint rings from cured concrete p...

Collapsible core for concrete pipe making apparatus

Collapsible core seam cover for concrete making apparatus

Automated system for handling and cleaning concrete pipe-making com...

Concrete pipe making machine

Apparatus for lining pipe

Method for lining pipe

Patents Applicationslast 30 patents

APPARATUS AND METHOD FOR PROTECTING LINED CONCRETE PIPE DURING THE...

VIBRATION SYSTEM FOR CONCRETE PIPE MAKING MACHINES

Apparatus and method for removing joint rings from cured concrete p...