1680369

Information

• Patent Grant
• 1680369

• References
• Source

• Patent Number

  1,680,369

• Date Filed

  Not available

• Date Issued

  Tuesday, August 14, 1928
  96 years ago

• CPC

  • F02F5/00 - Piston rings
  • B23P11/00 - Connecting metal parts or objects by metal-working techniques, not covered wholly by either B21J or B23K
  • B23P15/06 - piston rings from one piece
  • F16J9/26 - characterised by the use of particular materials
  • Y10T29/49279 - including rolling or die forming, e.g., drawing, punching
  • Y10T29/49924 - of parallel side-by-side elongated members
  • Y10T428/12264 - having outward flange, gripping means or interlocking feature
  • Y10T428/12299 - Workpiece mimicking finished stock having nonrectangular or noncircular cross section
  • Y10T428/12319 - Composite
  • Y10T428/12451 - Macroscopically anomalous interface between layers
  • Y10T428/12924 - Fe-base has 0.01-1.7% carbon [i.e., steel]

• US Classifications

  • 029 - Metal working
  • 428 - Stock material or miscellaneous articles