×

Articulated tubular conduit arm for sucking gaseous fluids

  • US 4,540,202 A
  • Filed: 02/08/1982
  • Issued: 09/10/1985
  • Est. Priority Date: 02/10/1981
  • Status: Expired due to Fees
First Claim
Patent Images

1. An artificial suction conduit for gaseous fluids, comprising at least two rigid tubes, a flexible sleeve disposed between and tightly connected to said tubes, mechanical articulation means comprising at least two arms rigidly connected one to each of said tubes an interconnected for pivoting about an axis transverse to the longitudinal axes of said tubes, and spring means connected between said arms to urge said arms towards a position wherein said rigid tubes are aligned with each other, said spring means being a helicoidal coil spring comprising turns coaxial with said pivot axis and free end portions rigidly connected to said arms.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×