Slope work vehicle
US-2024229421-A9 · Jul 11, 2024 · US
Interlock system
US8936232B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8936232-B2 |
| Application number | US-201213561184-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 30, 2012 |
| Priority date | Aug 17, 2011 |
| Publication date | Jan 20, 2015 |
| Grant date | Jan 20, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A hoist includes a platform, a drum, and a motor. The drum is supported by and configured to rotate with respect to the platform, and the motor is coupled to the drum and configured to rotate the drum. The hoist further includes a shaft having a splined section and an interlock system configured to constrain rotation of the shaft. The shaft is coupled to at least one of the drum and the motor, and communicates torque between the drum and the motor. The interlock system includes a keyed ring and an arm. The keyed ring is configured to slide onto and engage the splined section of the shaft. The arm extends from the keyed ring and is configured to provide leverage to limit rotation of the keyed ring, thereby interlocking rotation of the shaft when the keyed ring is engaged with the splined section of the shaft.
First claim
Opening claim text (preview).
What is claimed is: 1. A hoist, comprising: a platform; a drum supported by and configured to rotate with respect to the platform; a motor coupled to the drum and configured to rotate the drum; a shaft having a splined section and coupled to at least one of the drum and the motor, wherein the shaft communicates torque between the drum and the motor; and an interlock system, comprising: a keyed ring configured to slide onto and engage the splined section of the shaft; an…
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Classifications
Operations & Transport · mapped topic
- E02F9/2016Primary
Fixed Constructions · mapped topic
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Frequently asked questions
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- What does patent US8936232B2 cover?
- A hoist includes a platform, a drum, and a motor. The drum is supported by and configured to rotate with respect to the platform, and the motor is coupled to the drum and configured to rotate the drum. The hoist further includes a shaft having a splined section and an interlock system configured to constrain rotation of the shaft. The shaft is coupled to at least one of the drum and the motor, …
- Who is the assignee on this patent?
- Kowalski Thomas, Szpek Frank R, Medenwaldt Mark, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification E02F9/2016. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Jan 20 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).