Controlling filling at least one cavity using an in-mold switch
AssigneeInnovative Molding Products Company
InventorNicholas C. Johnson
Life of this patent
Estimating the term…
Abstract
A system and method for determining the position of a flow of melt within an injection molding system comprises a switch and a pin that actuates the switch. The pin has a first end positioned closer to the anticipated flow path of the melt and a second end that is positioned to be in contact with the switch, such that when melt enters the anticipated flow path, the pin is pushed to activate the switch.
Claims21
A system for determining the position of a flow of melt within an injection molding system, without the use of a pressure sensor, comprising:
- a contact switch;
- a pin that actuates said contact switch;
- said pin has a first end positioned closer to the anticipated flow path of the melt and a second end that is positioned to be in contact with said contact switch;
- such that when melt enters the anticipated flow path, the melt pushes said pin to close or open said contact switch.
A method for determining the position of a flow of melt within an injection molding system, without the use of a pressure sensor, comprising:
- locating a pin having a first end and a second end to actuate a contact switch by positioning the first end closer to the anticipated flow path of the melt and the second end in contact with the contact switch such that when melt enters the anticipated flow path, the pin is pushed to close or open said contact switch.
Dependencies are inferred from the claim text.