A. Y. Mcdonald Mfg. Co.

A. Y. Mcdonald Manufacturing Company

A. Y. Mcdonald Mgf. Co.

Joseph L Daghe

John D Eckel

Walter G Heidbrier

Steven R Tefft

An improved meter bar assembly including an elongated casting (10) having threaded inlet and outlet ports (18) and (30) along with spaced, threaded swivel receiving ports (22), (36). Shoulders (54) are located in each of the swivel receiving ports (22), (36) and an auxiliary port (70) is also located in the casting. A cylindrical tube (72) is disposed in the auxiliary port and extends into the casting (10) to provide a mechanical barrier between the outlet port (30) and the swivel port (36). A cap (76) is provided for the tube (72) and a check valve (78) disposed within the tube (72). A pair of swivel tubes, (28) and (40) are threaded into the ports (22), (36) and one of the swivel tubes (40) includes an internal check valve (96). Both swivel tubes are provided with stop surfaces (50) that abut the shoulders (54) of the associated swivel tube receiving ports to positively locate the swivel tubes (28) and (40) in the meter bar (10) and with respect to one another.

Auxiliary gas connection for meter sets

An angled check valve has a valve housing with an inlet for admitting fluid flow into the housing in a first direction and an outlet for discharging fluid flow from the housing in a second direction. The first direction and the second direction are generally perpendicular. An inlet check assembly in the housing has a valve member movable in the first direction for preventing fluid flow from exiting the housing through the inlet. An outlet check assembly in the housing has a valve member movable in the second direction for preventing fluid flow from entering the housing through the outlet. In order to facilitate assembly and service of the check valve, the housing has an opening extending in the second direction through which the inlet check assembly and the outlet check assembly can be assembled into and removed from the housing.

Angle dual check valve

A tamperproof rotary valve which includes a valve body having a fluid flow passage extending therethrough. The passage is intersected by an actuator opening in the body and defining a valve chamber thereat. A rotary valve is disposed in the chamber for opening and closing the fluid flow passage. An actuator is journaled in the actuator opening and is coupled to the rotary valve for rotating the valve. A groove is formed about the actuator, and a contractible/expandable locking ring is disposed in the groove and projects outwardly of the groove beyond the bounds of the actuator when in a free, expanded condition. The locking ring is contractible into the groove to allow assembly of the actuator into the actuator opening. A locking groove is formed in the actuator opening in the valve body and into which the locking ring expands when the actuator is in a proper assembled position in the actuator opening. The actuator has a cam surface for biasing the locking ring into the locking groove in response to any attempted withdrawal movement of the actuator in said opposite direction. A resilient grommet is compressed between an enlarged portion of the actuator and the valve body to generate torque therebetween to resist rotation. A valve seal is disposed in a seal seat in the valve body about the valve ball, the valve seal being resilient and having a stiffening ring embedded therein.

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Dubuque, IA, United States of America

Joseph L Daghe