US PATENT SUBCLASS 251 / 315.1
.~.~ Housing construction


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



251 /   HD   VALVES AND VALVE ACTUATION

304  DF  ROTARY VALVES {5}
315.01  DF  .~ Ball valve {7}
315.1.~.~ Housing construction {4}
315.11  DF  .~.~.~> Head removable perpendicular to flow passage {1}
315.13  DF  .~.~.~> Assembled around the head
315.14  DF  .~.~.~> Head removable along one side of flow passage
315.15  DF  .~.~.~> Having inseparable head


DEFINITION

Classification: 251/315.1

Housing construction:

(under subclass 315.01) Ball valve relating to the assembly

of a body structure which completely surrounds the spherical head and defines the flow passage therethrough.