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US 7,008,195 B2Granted
Compressor spring locator
AssigneeArchfact Limited
InventorsStephen Michael McGrath, Michael Chalton McGrath
Life of this patent
Estimating the term…
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AssigneeArchfact Limited
InventorsStephen Michael McGrath, Michael Chalton McGrath
Estimating the term…
A spring locating body (36) is a substantially annular shape formed with an annular recess (38) and a radially inner circular hole (40) that extends through the spring locating body (36). The spring locating body (36) is a substantially rigid plastically deformable material such as nylon. Extending radially outwardly from the spring locating body (36) are four limbs (42). The limbs (42) are equally spaced around the spring locating body (36) at intervals of 90°. Extending away from the rear surfaces of each limb (42) is a deformable rib (44). Each rib (44) extends across the respective limbs (42) in an arc about the central axis (46) of the spring locating body (36). The ribs (44) have a triangular cross-section the apex of which is distant from the limb (42). Alternatively, the ribs (44) can be in the form of a plurality of cone shaped nibs extending in a direction away from the surface of the respective limbs (42).
An electromagnetic reciprocating compressor comprising a body formed with a cylinder, a compressor piston assembly, a spring having two separate and opposite ends, and means for locating the ends of the spring, wherein the compressor piston assembly reciprocates within the cylinder and more than one of the coils of the spring are without axial movement during the reciprocation of the compressor piston assembly, the electromagnetic reciprocating compressor further comprising a region that permanently deforms in use due to clamping action between the body and the compressor piston assembly.
An electromagnetic reciprocating compressor comprising a body formed with a cylinder, a compressor piston assembly, a spring, and a spring locating device, wherein the compressor piston assembly reciprocates within the cylinder and at least one end coil of the spring is without axial movement during reciprocation of the compressor piston assembly, the electromagnetic reciprocating compressor further comprising a region that permanently deforms in use due to the clamping action between the body and the compressor piston assembly.
Dependencies are inferred from the claim text.