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US 2015/0082925 A1Published application
Gear Motor Pump Assembly
AssigneeMolon Motor & Coil Corporation
InventorEmilio A. Ramirez, JR.
Life of this patent
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Abstract
A compact gear motor pump assembly is disclosed. The gear motor pump assembly includes a motor driving a gear train and an output shaft in a first direction and a second direction, creating a pumping action. The present gear motor pump assembly offers an efficient and quiet operation through incorporation of springs within the assembly. The present assembly is designed for use with devices, specifically medical devices requiring a pumping action, for example, breast pumps.
Claims17
A gear motor pump assembly comprising:
- a. a housing defining a gearbox and a cover;
- b. a motor having a motor shaft extending axially therefrom, the motor connected to the housing;
- c. a gear train positioned within the gearbox and connected to the motor;
- d. an output shaft engaging with and moveable by the gear train;
- e. at least one compression spring disposed between one of the gearbox and the cover and the gear train;
- and,
- wherein, when the motor is energized, the gear train rotates in a first direction moving the output shaft a first distance, and wherein the gear train rotates in a second opposite to the first direction moving the output shaft in a second distance opposite the first distance creating a pumping motion.
4 more elements
A gear motor pump assembly for use in a pumping device, the assembly comprising:
- a. a housing defining a gear chamber and having a cover;
- b. a motor having a motor shaft extending axially therefrom, the motor connected to the housing;
- c. a gear train including an output gear having a central hub positioned within the gear chamber and connected to the motor;
- d. an output shaft engaging with and moveable by the gear train;
- e. at least two springs installed one on either side of the output gear central hub, wherein the spring absorbs concussion between the output gear, the gear box and the cover as the output gear moves back and forth axially along the shaft, and wherein, when the motor is energized in a first stage, the gear train rotates in a first direction moving the output shaft a first distance, and wherein when the motor is energized in a second stage, the gear train rotates in a second direction opposite to the first direction moving the output shaft in a second distance opposite the first distance, wherein the movement of the output shaft between the first distance and the second distance creates a pumping motion.
2 more elements
Dependencies are inferred from the claim text.