Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
  • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
  • H01H33/66—Vacuum switches
  • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
  • H01H33/6641—Contacts; Arc-extinguishing means, e.g. arcing rings making use of a separate coil
• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02F—DREDGING; SOIL-SHIFTING
  • E02F3/00—Dredgers; Soil-shifting machines
  • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
  • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
  • E02F3/34—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02F—DREDGING; SOIL-SHIFTING
  • E02F3/00—Dredgers; Soil-shifting machines
  • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
  • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
  • E02F3/36—Component parts
  • E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
  • E02F3/401—Buckets or forks comprising, for example, shock absorbers, supports or load striking scrapers to prevent overload
• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02F—DREDGING; SOIL-SHIFTING
  • E02F3/00—Dredgers; Soil-shifting machines
  • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
  • E02F3/627—Devices to connect beams or arms to tractors or similar self-propelled machines, e.g. drives therefor
  • E02F3/6273—Devices to connect beams or arms to tractors or similar self-propelled machines, e.g. drives therefor using legs to support the beams or arms on the ground during the connecting process

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Mining & Mineral Resources (AREA)
• Civil Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Structural Engineering (AREA)
• High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
• Switches With Compound Operations (AREA)
• Vacuum Packaging (AREA)
• Supplying Of Containers To The Packaging Station (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=19825732

Family Applications (2)

Family Applications After (1)

Country Status (16)

Families Citing this family (5)

Family Cites Families (5)

• 0
  • NL NL101699D patent/NL101699C/xx active
• 1976
  • 1976-03-03 NL NL7602209.A patent/NL161609C/xx not_active IP Right Cessation
• 1977
  • 1977-03-01 SE SE7702253A patent/SE410917B/xx unknown
  • 1977-03-01 US US05/773,273 patent/US4109122A/en not_active Expired - Lifetime
  • 1977-03-01 FR FR7705986A patent/FR2343325A1/fr active Granted
  • 1977-03-02 GB GB8830/77A patent/GB1543017A/en not_active Expired
  • 1977-03-02 JP JP2163777A patent/JPS52106475A/ja active Pending
  • 1977-03-02 IN IN308/CAL/77A patent/IN147208B/en unknown
  • 1977-03-02 ZA ZA00771248A patent/ZA771248B/xx unknown
  • 1977-03-02 NO NO770715A patent/NO142465C/no unknown
  • 1977-03-03 CH CH268277A patent/CH611454A5/xx not_active IP Right Cessation
  • 1977-03-03 DE DE2709363A patent/DE2709363C3/de not_active Expired
  • 1977-03-03 AT AT0143577A patent/ATA143577A/de not_active IP Right Cessation
  • 1977-03-03 CA CA273,154A patent/CA1066335A/en not_active Expired
  • 1977-03-03 BE BE175452A patent/BE852058A/xx unknown
  • 1977-03-03 ES ES456501A patent/ES456501A1/es not_active Expired
  • 1977-03-29 IT IT7767676A patent/IT1206432B/it active

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