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US 8,539,880 B2Granted
Hand proofer tool
AssigneeProbity Engineering, LLC
InventorRonald K Westby
Life of this patent
Estimating the term…
Abstract
A proofing tool including an anilox roll and a transfer roll that are shiftable relative to each other between an engaged position and a disengaged position. The invention further includes a positive rotational linkage between the transfer roll and a drive roll whereby a pitch velocity of the transfer roll and a pitch velocity of the transfer roll are substantially matched.
Claims14
A hand holdable proofing tool, comprising:
- a first support member;
- a second support member coupled to the first support member, the first support member and the second support member together forming a handle;
- an anilox roll coupled to the first support member;
- an impression roll coupled to the second support member and disposed proximate the anilox roll, the first support member and the second support member are coupled such that the first support member can flex such that a force is applied to the anilox roll by the first support member;
- at least one positive stop adjustment mechanism operably coupled to the first support member and the second support member, and configured to set a nip spacing between the anilox roll and the impression roll, wherein the at least one positive stop adjustment mechanism is disposed at a first end of the anilox roll;
- a positive rotational linkage operably coupling the anilox roll and the impression roll;
- and
- a second positive stop adjustment mechanism disposed at a second end of the anilox roll, the second end being opposite the first end.
5 more elements
A hand-holdable flexographic proofing tool, comprising:
- a first support member;
- a second support member coupled to the first support member;
- an anilox roll coupled to the first support member;
- an impression roll coupled to the second support member and disposed proximate to the anilox roll, the first support member and the second support member pressing the anilox roll and the impression roll towards each other such that ink can be metered by the anilox roll to the impression roll;
- a leading edge doctor blade operably coupled to the first support member and in contact with the anilox roll;
- a first adjustable micrometer thimble operably coupled to the first support member and the second support member at a first position;
- a second adjustable micrometer thimble operably coupled to the first support member and the second support member at a second position apart from the first position, wherein the first adjustable micrometer thimble and the second adjustable micrometer thimble configured to set a minimum nip spacing between the anilox roll and the impression roll;
- and
- a positive rotational linkage operably coupling the anilox roll and the impression roll such that a pitch velocity of the anilox roll and a pitch velocity of the impression roll are matched.
6 more elements
Dependencies are inferred from the claim text.