3909334

Information

• Patent Grant
• 3909334

• References
• Source

• Patent Number

  3,909,334

• Date Filed

  Not available

• Date Issued

  Tuesday, September 30, 1975
  49 years ago

• CPC

  • B31B23/00 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents, from webs
  • B29C65/224 - being a resistive ribbon, a resistive band or a resistive strip
  • B29C65/30 - Electrical means
  • B29C66/0044 - using a separating sheet
  • B29C66/1122 - Single lap to lap joints
  • B29C66/43121 - Closing the ends of tubular or hollow single articles
  • B29C66/81457 - comprising a block or layer of deformable material
  • B29C66/8161 - said pressing elements being supported or backed-up by springs or by resilient material
  • B29C66/8167 - Quick change joining tools or surfaces
  • B29C66/818 - characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
  • B29C66/8221 - Scissor or lever mechanisms
  • B29C66/82263 - Follower pin or roller cooperating with a groove
  • B29C66/8322 - Joining or pressing tools reciprocating along one axis
  • B29C66/8412 - of different length, width or height
  • B29C66/8511 - Bag making machines
  • G01B3/02 - Rulers or tapes with scales or marks for direct reading
  • G01B3/12 - Measuring wheels
  • G01B21/06 - specially adapted for measuring length or width of objects while moving
  • B29C66/8122 - characterised by the composition of the material constituting the pressing elements
  • B29C66/81419 - and flat
  • B31B2237/10 - the bags having no structural provision at the base for thickness of content
  • B31B2237/60 - starting from tubular webs
  • Y10T83/4443 - Unicyclic
  • Y10T83/4546 - Length selector initiates machine operation
  • Y10T83/858 - Indicates dimension of work being cut
  • Y10T156/12 - Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing

• US Classifications

  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 053 - Package making
  • 083 - Cutting