2778634

Information

• Patent Grant
• 2778634

• References
• Source

• Patent Number

  2,778,634

• Date Filed

  Not available

• Date Issued

  Tuesday, January 22, 1957
  67 years ago

• CPC

  • G11B15/285 - through pneumatic means
  • G11B15/22 - Stopping means
  • G11B15/38 - Driving record carriers by pneumatic means
  • G11B15/43 - Control or regulation of mechanical tension of record carrier
  • G11B15/58 - with vacuum column

• US Classifications

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