3643889

Information

• Patent Grant
• 3643889

• References
• Source

• Patent Number

  3,643,889

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  52 years ago

• CPC

  • G11B15/6895 - Automatic tape changing arrangements
  • G03B1/56 - Threading Loop forming
  • G11B15/16 - by sensing presence, absence or position of record carrier or container
  • G11B15/26 - Driving record carriers by members acting directly or indirectly thereon
  • G11B15/295 - with single capstan or drum simultaneously driving the record carrier at two separate points of an isolated part thereof
  • G11B15/32 - through the reels or cores on to which the record carrier is wound
  • G11B15/385 - directly
  • G11B15/67 - by extracting end of record carrier from container or spool
  • G11B15/671 - using pneumatic means
  • G11B15/686 - with a fixed recorder or player in the centre or at the periphery of the magazine

• US Classifications

  • 242 - Winding, tensioning, or guiding
  • 226 - Advancing material of indeterminate length
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER