Bench top pump
First Claim
Patent Images
1. A drive unit, comprising:
- a housing;
a hollow drive rod;
a motor;
a screw member extending through said hollow drive rod and operationally attached to said motor; and
an internally threaded drive member attached to said drive rod and operationally attached to said screw member such that rotation of said screw member causes linear displacement of said drive rod.
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Accused Products
Abstract
A modular, expandable, no-tools pump assembly having precise computer control for controlling dispensing volumes and flow characteristics of the dispensed fluid.
35 Citations
20 Claims
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1. A drive unit, comprising:
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a housing;
a hollow drive rod;
a motor;
a screw member extending through said hollow drive rod and operationally attached to said motor; and
an internally threaded drive member attached to said drive rod and operationally attached to said screw member such that rotation of said screw member causes linear displacement of said drive rod. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A fluid product delivery system, comprising:
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a housing;
a hollow drive rod;
a motor;
a screw member extending through said hollow drive rod and operationally attached to said motor;
an internally threaded drive member attached to said drive rod and operationally attached to said screw member such that rotation of said screw member causes linear displacement of said drive rod; and
a piston assembly operationally attached to said drive rod, wherein linear displacement of said drive rod causes linear displacement of said piston. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification