Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With means to close mold
Patent
1989-03-03
1990-07-31
Hoag, Willard
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With means to close mold
425595, 4254501, 4254512, 4254519, B29C 4503
Patent
active
049446690
ABSTRACT:
A high tonnage reaction injection molding press has a fixed and a moveable mold plate for clamping a composite mold therebetween. A plurality of high pressure hydraulic cylinders are mounted on a carrier for the movable mold plate. Fluid actuated means move the carrier and movable plate to a locking position whereat the carrier is locked adjacent to the fixed plate. Short stroke connecting rods operated by the cylinders are then forced independently of each other into high tonnage connected engagement with the movable plate at a plurality of locations within the area of the mold to clamp the mold between the plates. The high tonnage force applied independently at each location assures that the junctures of the composite mold adjacent to said locations are positively sealed.
REFERENCES:
patent: 2711561 (1955-06-01), Studli
patent: 2916768 (1959-12-01), Quere et al.
patent: 3120039 (1964-02-01), Stubbe et al.
patent: 3346924 (1967-10-01), Lombard
patent: 3940930 (1976-03-01), Rosander
patent: 3972668 (1976-08-01), Cessna, Jr.
patent: 4032277 (1977-06-01), Linde et al.
patent: 4128380 (1978-12-01), Jamann
patent: 4240781 (1980-12-01), Flickinger et al.
patent: 4245971 (1981-01-01), MacMillan
patent: 4247278 (1981-01-01), Descrovi et al.
patent: 4273524 (1981-06-01), Smith
patent: 4304540 (1981-12-01), Hammon
patent: 4318682 (1982-03-01), Larson et al.
patent: 4364720 (1982-12-01), Ryder
patent: 4504208 (1985-03-01), Kuramaji et al.
Hoag Willard
The Dow Chemical Company
LandOfFree
High tonnage rim press does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High tonnage rim press, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High tonnage rim press will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1396193