Drive device and method of controlling the same
US-2024392530-A1 · Nov 28, 2024 · US
Rotary actuator for energy efficient ice cube dispenser door system
US9033192B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9033192-B2 |
| Application number | US-201214232762-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 13, 2012 |
| Priority date | Jul 15, 2011 |
| Publication date | May 19, 2015 |
| Grant date | May 19, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A rotary actuator suitable for use in a refrigerator ice-dispensing door provides a rotating shaft driven by a DC permanent magnet motor through a gear train and subject to a returning force of an internal spring. The gear train communicates with a switch to reduce current to the motor when a limit of travel is reached and a shunting path is provided around the motor to produce generative braking when power is removed from the motor and the actuator rotates backward to its initial position.
First claim
Opening claim text (preview).
What is claimed is: 1. An electrical rotary actuator comprising: an output shaft; a DC permanent magnet motor providing a rotating motor shaft; a reducing gear train including a first gear attached to the motor shaft to rotate therewith and a last gear attached to the output shaft to rotate the output shaft with rotation of the motor; a stop limiting rotation of the output shaft in a first direction as driven by the motor through the gear train when power is applied to the m…
Assignees
Inventors
Classifications
Electricity · mapped topic
Mechanical Engineering · mapped topic
Electricity · mapped topic
- H02K7/116Primary
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9033192B2 cover?
- A rotary actuator suitable for use in a refrigerator ice-dispensing door provides a rotating shaft driven by a DC permanent magnet motor through a gear train and subject to a returning force of an internal spring. The gear train communicates with a switch to reduce current to the motor when a limit of travel is reached and a shunting path is provided around the motor to produce generative braki…
- Who is the assignee on this patent?
- Hapke Kenyon A, Illinois Tool Works
- What technology area does this patent fall under?
- Primary CPC classification H02K7/116. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 19 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).