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Fluid power piston actuators

  • US 4,056,043 A
  • Filed: 10/28/1975
  • Issued: 11/01/1977
  • Est. Priority Date: 10/28/1975
  • Status: Expired due to Term
First Claim
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1. In a fluid power actuator, an outer body portion having a mounting wall with an opening, an operator projecting through said mounting wall opening, a fluid driven member in said body portion and connected to said operator, said mounting wall further including an annular recess encircling said opening, said recess defining a spherical chordal section having a spherically shaped sidewall with an outer circular opening to the recess of a diameter less than the diameter of a sphere generated by the full development of the spherically shaped sidewall, an annular mounting means clamped within said recess and having a central opening for the operator and an outer periphery defining a central sector of said sphere, said central opening having a diameter greater than the operator and being spaced from said operator and permitting movement of the mounting means independently of the body portion and the operator, a clamping means secured to said body portion in spaced relation to said mounting wall, said clamping means having a spherical chordal sector generally corresponding to and coaxially aligned with said spherical chordal sector defined by said recess and operable to firmly clamp the mounting means in position for supporting of the actuator, wherein said annular mounting means is a two-piece member having a pair of similar ring members with internal slot and projections defining a snap-joint connection of the ring members.

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