Blow cylinder with fluid cushion

Details Blow cylinder with fluid cushion Blow cylinder with fluid cushion

2007-08-14

2007-08-14

McDowell, Suzanne E. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Including application of internal fluid pressure to hollow...

C425S535000, C425S536000

Reexamination Certificate

active

10733647

ABSTRACT:
Novel blow cylinders use a retract fluid at a minimum pressure, located between a piston head and a wall of a cylinder body, to prevent the piston head from violently impacting the wall when the piston head is moved so that a blow needle engages a parison. The retract fluid at a minimum pressure is also used to move the piston head so that the blow needle disengages the parison.

REFERENCES:
patent: 3751207 (1973-08-01), Mehnert
patent: 3895897 (1975-07-01), Hudson
Products & Specification Charts/ Single & Double Acting Cylinders, Bearing Options, http://www.illpneumatics.com/index.html (Illinois Pneumatics, Inc; accessed Jun. 18, 2004).
1A/H Series Light Duty Air/Hydraulic, http://www.ortmanfluidpower.com/Products/1a—h.htm (Ortman Fluid Power, an EnPro Industries, Inc. company; accessed Jun. 18, 2004).

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