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US 5,469,786 AGranted
Enclosed ink cup with improved seal
AssigneeImtran Industries, Inc.
InventorKenneth R. Harris
Life of this patent
Estimating the term…
Abstract
An enclosed ink cup for a pad-type printing machine including a hollow structure defining a reservoir region that is closed around the sides and top, is open only at the bottom, and has a lower edge for sealably contacting an engraved printing plate so as to contain ink within the structure over the plate, and a vacuum port in the structure that communicates with the top of the region for applying a vacuum to the region above the ink to promote sealable contact between the lower edge and the plate.
Claims8
An enclosed ink cup for a pad-type printing machine comprising
- a hollow structure defining a reservoir region that is closed around the sides and top and is open only at the bottom of said reservoir region, said structure having a lower edge for sealably contacting an engraved printing plate so as to contain ink within said structure over said plate, and
- a vacuum port in said structure communicating with the top of said region for applying a vacuum to said region above said ink to promote sealable contact between said lower edge and said plate.
A pad-type printing press machine comprising
- a printing plate support,
- an engraved printing plate on said support,
- a pad and transport mechanism for moving said pad from an engraved area of said printing plate to an object being printed,
- an ink cup on said printing plate, and
- a transport mechanism for sliding said ink cup on said plate between said engraved area of said plate and another area of said plate,
- said ink cup comprising
- a hollow structure defining a reservoir region that is closed around the sides and top and is open only at the bottom of said reservoir region, said structure having a lower edge for sealably contacting said engraved printing plate so as to contain ink within said structure over said plate, and
- a vacuum port in said structure communicating with the top of said region for applying a vacuum to said region above said ink to promote sealable contact between said lower edge and said plate.
5 more elements
Dependencies are inferred from the claim text.