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US 8,045,882 B2Granted
Self-sealing process roller
OwnerJesse Delcamp, Steven Millerinventors
Life of this patent
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Abstract
A process roller for use with an imagining cartridge, the process roller including sealing surfaces located at its distal ends. As the process roller rotates, the sealing surfaces of the process roller are sufficiently flexible to conform to the inner side walls of the imaging cartridge, thereby sealing the printing agent inside the imaging cartridge at the distal ends of the process roller.
Claims9
An imaging cartridge, comprising:
- a housing containing a printing agent;
- a process roller rotatably mounted at the printing agent exit area of said housing;
- said process roller comprising a circumferential sealing lip protruding outward from a distal end of said process roller;
- said circumferential sealing lip being integrally formed in said process roller;
- said circumferential sealing lip extending 360 degrees around the circumference of said distal end of said process roller;
- said circumferential sealing lip comprising an inner surface;
- said inner surface of said circumferential sealing lip disposed to contact a sealing surface located in said housing at the distal end of said process roller, whereby said circumferential sealing lip forms a seal against said sealing surface to seal said printing agent inside of said housing.
4 more elements
Dependencies are inferred from the claim text.