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US 11,306,716 B2Granted
Pump
OwnerMichael L. Bellinventor
Life of this patent
Estimating the term…
Abstract
The invention includes a pump having a barrel, a plunger, a seal, a fluid conduit, and a motion drive. The barrel defines an elongated chamber. The plunger includes a tip, which is disposed in the chamber. The seal sealingly engages between the chamber and the plunger, and the motion drive is configured to rotate the chamber with respect to the plunger and to translate the tip within the chamber.
Claims20
A pump comprising:
- a lead screw including an external thread and an axial bore;
- a nut including an internal thread engaged with the external thread;
- an elongated plunger including a tip, the plunger fixed to the nut and the tip disposed in the bore;
- a seal sealingly engaged between the bore and the plunger;
- a fluid conduit plumbed to the bore;
- and
- a motion drive configured to rotate one of the lead screw and the nut.
4 more elements
A method of pumping a fluid, comprising
- a) adding a fluid to an axial bore of a lead screw, the bore sealingly engaged with a plunger;
- b) simultaneously rotating and translating the plunger with respect to the bore;
- and
- c) dispensing a portion of the fluid through a conduit plumbed to the bore.
1 more element
A pump comprising:
- a lead screw including an external thread and an axial bore;
- an elongated plunger disposed in the bore;
- a seal sealingly engaged between the bore and the plunger;
- and
- a fluid conduit plumbed to the bore.
2 more elements
Dependencies are inferred from the claim text.