Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 8162631 | Floating pinion bearing for a reciprocating pump A reciprocating pump assembly includes a power frame that houses a crankshaft. The crankshaft is mechanically connected to a large gear or bull gear on each end that is in mechanical engagement with a small gear or pinion bearing. A bearing housing is integrally for... | 04/24/2012 |
| D651593 | RFID holder | 01/03/2012 |
| D651592 | RFID holder | 01/03/2012 |
| D651591 | Combination RFID holder and RFID tag | 01/03/2012 |
| D641382 | Stay rod for reciprocating pump | 07/12/2011 |
| 7823265 | Flowline torque arm assembly An assembly for moving a pair of flowline members relative to each other has a pair of flowline collars that are adapted to connect to an end portion of one of the pair of flowline members. The assembly has an arm member with an end portion rotationally mounted to o... | 11/02/2010 |
| 7549681 | Flowline clamp connector A flowline connection assembly connects first and second tubular members to each other. Each tubular member has an external flange on its end. A recess is formed in the bore at the end of each of the tubular members. A seal ring extends into each of the conical rece... | 06/23/2009 |
| 7451959 | Plug valve having a seal boss A fluid control valve utilizes a rotatable plug valve member mounted in a fluid passage to control the flow of fluids. Two segments are placed on each side of the plug valve member within a recess located between the plug valve member and the body of the fluid passa... | 11/18/2008 |
| 7404704 | Manifold assembly for reciprocating pump A cylinder block assembly for a reciprocating pump includes a block body having a piston chamber that receives a piston of the reciprocating pump. The cylinder block assembly has an outlet valve assembly positioned within the block body that is positioned in fluid c... | 07/29/2008 |
| 7364412 | System, method, and apparatus for valve stop assembly in a reciprocating pump A reciprocating pump assembly has a pump housing with a crankshaft. A plunger is connected to the crankshaft for pumping a fluid through a cylinder. The cylinder has a fluid inlet port and an opening that provides access to the cylinder. A suction cover is mounted i... | 04/29/2008 |
| 7364051 | Remote actuator for ball injector An electrical motor rotatably drives a motor shaft, and a helical rib radially extends from the shaft. The helical rib supports a number of balls, and forms a channel to accommodate the balls. The balls are dropped from the helical rib when the balls reach the botto... | 04/29/2008 |
| 7219594 | Coolant system for piston and liner of reciprocating pumps A reciprocating pump assembly includes piston rod that is movable and reciprocates in order to pump a fluid. The piston rod has a piston portion at an end that stokes within a piston chamber. The pump assembly also includes a piston rod sleeve that houses the piston... | 05/22/2007 |
| 7204525 | Flowline clamp connector A flowline connection assembly connects first and second tubular members to each other. Each tubular member has an external flange on its end. A conical recess is formed in the bore at the end of each of the tubular members. A metal ring has a pair of legs extending... | 04/17/2007 |
| 7096718 | Pressure testing apparatus A portable test compartment allows for on-site pressure testing of a workpiece at the site where the workpiece is utilized, instead of having to haul the workpiece to an off-site testing location. A test vehicle carries the elongated test compartment, and travels to... | 08/29/2006 |
| 6978799 | Emergency pressure relief valve with enhanced reset A pressure relief valve has a housing fluidly connected to a pressurized system line carrying a system fluid. The housing carries a moveable piston and a valve member that both move between closed and open positions. The piston defines an upper chamber and a lower c... | 12/27/2005 |
| 6945569 | Enhanced durability hammer union A union for connecting two tubular members. The first tubular member has an external flange, and the second tubular member has a set of external threads. An annular nut surrounds the first tubular member. The nut has an internal flange that surrounds the first tubul... | 09/20/2005 |
