Electric heating – Heating devices – Tool or instrument
Patent
1997-03-26
1999-06-15
Jeffery, John A.
Electric heating
Heating devices
Tool or instrument
219544, 219535, 219483, 1563042, B29C 6530, B29C 6534
Patent
active
059118954
ABSTRACT:
An apparatus for simultaneously welding multiple molded plastic parts includes a power delivery module, a measuring arrangement, a parameter storage module, a user interface, and a controller, is designed for use with plastic parts that each have at least one fitting with a heating element and an identifying resistor. The power delivery module is designed to supply power to the multiple heating elements and includes a common power supply, multiple independently controllable power switching devices and multiple outputs, each designed for interconnection with one of the fittings. The measuring arrangement includes multiple interconnections for connecting to the heating element and identifying resistor of each fitting to which an output is connected. The measuring arrangement measures the resistance of the heating element and the identifying resistor of each fitting connected to the apparatus. The parameter storage module stores the power output level and power duration parameters for fittings of different types based on the resistance values of their heating elements and identifying resistors. The controller is connected to the user interface, the parameter storage module, the power delivery module, and the measuring arrangement. The controller operates to perform the following functions: cause the measuring arrangement to measure the resistance of the heating element and identifying resistor of each fitting; access the parameter storage module to identify the power output level and power duration parameters for each fitting; and cause the power delivery module to simultaneously deliver power to each of the outputs connected to the fittings and control the power switching devices so that power is supplied to each of the outputs for the duration and at the level identified for the fitting connected to the output.
REFERENCES:
patent: Re33716 (1991-10-01), Johnson
patent: 3444732 (1969-05-01), Robbins et al.
patent: 3634655 (1972-01-01), Jordan
patent: 4354093 (1982-10-01), Zago
patent: 4469545 (1984-09-01), Low
patent: 4486650 (1984-12-01), Bridgstock et al.
patent: 4571488 (1986-02-01), Reeves
patent: 4642155 (1987-02-01), Ramsey
patent: 4735675 (1988-04-01), Metz
patent: 4804811 (1989-02-01), Raycher et al.
patent: 4861967 (1989-08-01), Yoshimura
patent: 4994655 (1991-02-01), Handa et al.
patent: 5013376 (1991-05-01), McElroy, II et al.
patent: 5014210 (1991-05-01), Postlewait et al.
patent: 5170042 (1992-12-01), Bunn
patent: 5357076 (1994-10-01), Blankenship
patent: 5527406 (1996-06-01), Brath
patent: 5620625 (1997-04-01), Sauron et al.
Porfido Erasmo
Steiner Jurg
Georg Fischer Rohrleitungssyteme AG
Jeffery John A.
LandOfFree
Device for welding molded plastic parts permitting simultaneous does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for welding molded plastic parts permitting simultaneous , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for welding molded plastic parts permitting simultaneous will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-400372