2193288

Information

• Patent Grant
• 2193288

• References
• Source

• Patent Number

  2,193,288

• Date Filed

  Not available

• Date Issued

  Tuesday, March 12, 1940
  84 years ago

• CPC

  • B65H75/4421 - acting directly on the material
  • B65H75/38 - involving the use of a core or former internal to, and supporting, a stored package of material
  • B65H75/44 - Constructional details
  • B65H75/4478 - relating to handling of fluids
  • B65H2701/33 - Hollow or hose-like material
  • Y10T137/6929 - Reel type
  • Y10T137/6943 - Biased to retracted position
  • Y10T137/698 - Wall
  • Y10T137/88094 - Reciprocating valve

• US Classifications

  • 137 - Fluid handling
  • 242 - Winding, tensioning, or guiding
  • 251 - Valves and valve actuation
  • 285 - Pipe joints or couplings