| 8950422 |
Actuating mechanism for a valve and an electric switch having an actuator |
— |
2015-02-10 |
| 7814924 |
Seismic safety valve and valve actuator |
— |
2010-10-19 |
| 7458387 |
Emergency gas and electricity shutoff apparatus and control system |
— |
2008-12-02 |
| 6938637 |
Emergency gas and electricity shutoff apparatus and control system |
Douglas Paul Arduini |
2005-09-06 |
| 6705340 |
Emergency gas and electricity shutoff apparatus and control system |
Douglas Paul Arduini |
2004-03-16 |
| 6085772 |
Smart automatic safety valve having remote electromagnetic shut-off protection and reset control from seismic or other sensors |
Douglas Paul Arduini |
2000-07-11 |
| 5992439 |
Interface apparatus for adapting a gas flow valve to a gas meter |
— |
1999-11-30 |
| 5984581 |
Pipeline coating |
James Michael McGill, Bobby L. Key |
1999-11-16 |
| 5704385 |
Automatic and manually operable safety shutoff valve |
Antonio F. Fernandez |
1998-01-06 |
| 5409031 |
Safety shut off valve |
Antonio F. Fernandez |
1995-04-25 |
| 5119841 |
Safety shut off apparatus |
— |
1992-06-09 |
| 4903720 |
Safety shut off device |
— |
1990-02-27 |
| 4634369 |
Purging process |
John W. Schindeler, Jr., Eugene C. McGill, Robert L. Rawlings |
1987-01-06 |
| 4528000 |
Fuel conditioning process |
James R. Alley, David W. Coombs |
1985-07-09 |
| 4305734 |
Recovery of hydrocarbon components from a hydrocarbon-carrier gas mixture |
— |
1981-12-15 |