Back to results
US 5,486,103 AGranted
Blow mold clamp assembly
AssigneeElectra Form, Inc.
InventorsDavid P. Meiring, Lynn R. Maggert
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeElectra Form, Inc.
InventorsDavid P. Meiring, Lynn R. Maggert
Estimating the term…
A blow mold assembly has a first and second carriage, and air cylinders for moving the first and second carriages along guide rods between an open position and a closed position. A first and second mold half are coupled respectively to the first and second carriages to define in the closed position at least one blow mold cavity. A lock situated on confronting surfaces of the first and second carriages locks the carriages together when the carriages are located in the closed position. The lock includes a pair of channel defining members coupled to one of the carriages having opposed edges including a series of teeth separated by interdental spaces, and a corresponding pair of cooperating toothed members coupled to another of the carriages and arranged to penetrate the interdental spaces. Each first mold half is movably mounted to the first carriage and is biased away from the second mold half. A chamber is situated between the first carriage and the first mold half having an opening for introducing fluid into said chamber in sufficient amount and under sufficient pressure to overcome the biasing forces and to resist any pressure applied to the first blow mold half during blow molding of an article within the blow mold cavity insuring faithful continuous mating of the two mold halves defining each blow mold cavity.
A blow mold assembly comprising a first and second carriage, motive means for moving at least one of the first and second carriages between an open position and a closed position, guide means for guiding the movement of the at least one carriage along a line of movement between the open and closed positions, at least one first and second mold half coupled respectively to the first and second carriages for movement therewith to define in the closed position at least one blow mold cavity, and mounting means movably mounting said at least one first mold half to the first carriage, the mounting means including biasing means for biasing the first mold half away from the second mold half and displacement means for displacing the first mold half away from the first carriage and toward the second mold half when the carriages are in the closed position to insure continuous mating of the two mold halves defining said at least one blow mold cavity.
A blow mold assembly comprising a plurality of first and second carriages, motive means for moving the first and second carriages between an open position and a closed positions guide means for guiding the movement of the carriages along a line of movement between the open and closed positions, a set of first mold halves and a set of second mold halves coupled respectively to each of the first and second carriages for movement therewith to define in the closed position a set of blow mold cavities, locking means situated on confronting surfaces of the first and second carriages for locking the carriages together when the carriages are located in said closed position, and mounting means movably mounting each first mold half to one of the first carriages, the mounting means including biasing means for biasing the first mold half away from the second mold half, a chamber situated between the first carriage and the first mold half, and means for introducing fluid into said chamber in sufficient amount and under sufficient pressure to overcome said biasing means and to resist any pressure applied to the first blow mold half during blow molding of an article within the blow mold cavity insuring continuous mating of the two mold halves defining each blow mold cavity.
A blow mold assembly comprising at least one set of confronting carriages, said at least one set comprising a first carriage and a second carriage, motive means for moving the first and second carriages linearly between an open position and a closed position, guide means for guiding the movement of the confronting carriages along a linear path between the open and closed positions, at least one first and second mold half coupled to each of the first and second carriages respectively for movement therewith to define in the closed position at least one blow mold cavity for said at least one set of carriages, and a channel defining member coupled to one of the first and second carriages of said at least one set of carriages, the channel defining member having opposed edges including a series of teeth separated by interdental spaces, a slotted fixture fixed to the other of the first and second carriages, and a cooperating toothed member arranged to penetrate the interdental spaces of the opposed edges of the channel defining member, the cooperating toothed member including a web having a flange received in said slotted fixture for mounting said cooperating toothed member to permit movement of the toothed member from a position aligned with said interdental spaces to a position engaging said series of teeth for locking the carriages together when the carriages are located in said closed position.
Dependencies are inferred from the claim text.