Plastic article or earthenware shaping or treating: apparatus – Reshaping – resizing or vulcanizing means for tire – tire... – Toroidal or annular female shaping means and coacting means...
Reexamination Certificate
2006-01-03
2006-01-03
Mackey, James P. (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Reshaping, resizing or vulcanizing means for tire, tire...
Toroidal or annular female shaping means and coacting means...
C425S047000
Reexamination Certificate
active
06981857
ABSTRACT:
A tire press has an upper mold fixedly attached to a top plate. A bottom mold is fixedly attached to a bottom plate. The tire press has a plurality of guide posts adapted to maintain proper alignment of the upper mold and the lower mold as the tire press opens and closes. A plurality of lock rods, which are independent of the guide posts, are positioned about the tire press. Each of the lock rods has a first end and a second end. The lock rods may have an adjustment mechanism positioned on the first end of the lock rods to adjust the various mold heights. Locking means are a part of the tire press, which are adapted to selectively engage the second end of the lock rods. Further, each of the lock rods has cylinder mechanism operatively connected to the locking means. The cylinder mechanism is adapted to force the locking means to the surface of the lock rods. The cylinder mechanism is a hydraulic cylinder having the piston disposed within the chamber. The piston has a release side and a squeeze side, such that when fluid is introduced on the squeeze side, a substantially equal amount of tension is placed on the lock rods to lock the tire press. When fluid is introduced on the release side, the locking means can be removed from the lock rods and the tire press can be opened.
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Brochure on “Column Guide/Rod Lock Type Hydraulic Tire Curing Press Model LT-XL 51R 350SP”, by Mitsubishi Heavy Industries, Ltd.
Brochure on “Hydraulic Curing Presses for Passenger, Truck, Tractor and Earth-Mover Tires”, by Krupp Elastomertechnik a company of ThyssenKrupp Technologies.
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Barnes Heather M.
Emerson Roger D.
Mackey James P.
McDowell Brouse
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