Reassembled toner cartridge and method of manufacture
View Patent ↗A reassembled toner cartridge and method of manufacture in which a reassembled toner cartridge is resealed by simultaneous ultrasonic welding at multiple locations resulting in improved product performance, increased production efficiency and decreased production cost.
1. A method of making a reassembled toner cartridge comprising:
disassembling a depleted toner cartridge having a hopper section containing a toner port and having a first mating surface interfacing with a second mating surface of a roller section along the plane of which interfacing said mating surfaces the hopper section and the roller section are ultrasonically welded together;
separating said roller section from said hopper section along the plane of the ultrasonic weld;
installing a toner port seal in said hopper section;
filling the hopper section with toner;
aligning the hopper section and the roller section with said first mating surface of the hopper section interfacing with said second mating surface of the roller section;
ultrasonically re-welding the hopper section and the roller section together along the plane of their interfacing mating surfaces.
2. The method of making a reassembled toner cartridge of claim 1 wherein:
said ultrasonic re-welding does not require a specially fabricated energy director element.
3. A reassembled toner cartridge comprising:
a hopper section having a previously ultrasonically welded mating surface;
a roller section having a mating surface interfacing with said previously ultrasonically welded mating surface of the hopper section; and
the mating surface of the roller section ultrasonically welded to said previously ultrasonically welded mating surface of the hopper section.
4. A reassembled toner cartridge comprising:
a roller section having a previously ultrasonically welded mating surface;
a hopper section having a mating surface interfacing with said previously ultrasonically welded mating surface of the roller section; and
the mating surface of the hopper section ultrasonically welded to said previously ultrasonically welded mating surface of the roller section.
5. A method of making a reassembled toner cartridge comprising:
disassembling a depleted toner cartridge having a hopper section containing a toner port and having a first mating surface interfacing with a second mating surface of a roller section along the plane of which interfacing said mating surfaces the hopper section and the roller section are ultrasonically welded together;
separating said roller section from said hopper section along the plane of the ultrasonic weld;
refilling the hopper section with toner;
aligning the hopper section and the roller section with said first mating surface of the hopper section in interfacing contact with said second mating surface of the roller section;
melting a first area of said first mating surface and melting a juxtaposed second area of said second mating surface by application of ultrasonic energy to at least one of said hopper section and said roller section;
allowing the melted said first area and the melted said second area to mix;
cooling the melted said first area and the melted said second area to form at least one severable bond along the plane of said interfacing mating surfaces.
6. The reassembled toner cartridge produced by the method of claim 2 , claim 3 , or claim 5 .