3874632

Information

• Patent Grant
• 3874632

• References
• Source

• Patent Number

  3,874,632

• Date Filed

  Not available

• Date Issued

  Tuesday, April 1, 1975
  49 years ago

• CPC

  • A62B1/00 - Devices for lowering persons from buildings or the like
  • A62B1/10 - mechanically operated
  • Y10T24/3936 - Pivoted part
  • Y10T24/3953 - Pivotal means with plate aperture
  • Y10T24/3956 - Jaws locked together by cam, wedge, lever, or screw
  • Y10T24/44444 - having specific surface material or irregularity on or along engaging face
  • Y10T24/4447 - having coil portion coaxial or parallel with pivotal axis

• US Classifications

  • 182 - Fire escape, ladder, or scaffold
  • 024 - Buckles, buttons, clasps, etc.
  • 188 - Brakes