Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21D53/00—Making other particular articles
  • B21D53/74—Making other particular articles frames for openings, e.g. for windows, doors, handbags
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
  • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
  • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
  • B21C37/10—Making tubes with riveted seams or with non-welded and non-soldered seams
  • B21C37/104—Making tubes with riveted seams or with non-welded and non-soldered seams the tubes having a special shape, e.g. polygonal tubes
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
  • E06B3/04—Wing frames not characterised by the manner of movement
  • E06B3/263—Frames with special provision for insulation
  • E06B3/273—Frames with special provision for insulation with prefabricated insulating elements held in position by deformation of portions of the metal frame members
  • E06B3/2735—Frames with special provision for insulation with prefabricated insulating elements held in position by deformation of portions of the metal frame members comprising a sheet metal member, an edge or which is bent over the edge of the other metal member with interposition of an insulating element

Applications Claiming Priority (2)

Publications (1)

Family

ID=25720673

Family Applications (1)

Country Status (6)

Families Citing this family (3)

• 1971
  • 1971-12-01 GB GB5583271A patent/GB1352897A/en not_active Expired
  • 1971-12-02 FR FR7143317A patent/FR2117897A2/fr not_active Withdrawn
  • 1971-12-03 BE BE776242A patent/BE776242R/xx active
  • 1971-12-06 AU AU36516/71A patent/AU468831B2/en not_active Expired
  • 1971-12-07 NL NL7116815A patent/NL7116815A/xx unknown
  • 1971-12-08 DE DE19712160957 patent/DE2160957A1/de active Pending

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