Workpiece Material Detector for a Power Tool
US-2016016240-A1 · Jan 21, 2016 · US
Table saws
US9925683B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9925683-B2 |
| Application number | US-201514862571-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 23, 2015 |
| Priority date | Oct 1, 1999 |
| Publication date | Mar 27, 2018 |
| Grant date | Mar 27, 2018 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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- CPC / IPC classifications
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Abstract
Official abstract text for this publication.
Table saws with safety systems are disclosed. The safety systems detect and react to dangerous conditions, such as contact between the blade and a person. The table saws may include a switch, a first light that illuminates to indicate the safety system is operable, and a second light that illuminates to indicate that the safety system is inoperable. The switch may not power the saw when switched on if the second light is illuminated.
First claim
Opening claim text (preview).
The invention claimed is: 1. A table saw comprising: a circular blade; a motor that spins the blade; electronics that detect contact between the blade and a person; a safety system that stops or retracts the blade when contact between the blade and a person is detected; a switch that is switchable between an “on” position and an “off” position to start and stop the motor; a first light that illuminates to indicate the safety system is operable; and a second light that illuminates to indicate that the safety system is inoperable; where the motor will not begin spinning the blade when the switch is switched from the “off” position to the “on” position if the second light is illuminated and the safety system is not then stopping or retracting the blade.
Assignees
Inventors
Classifications
Responsive to tool detector or work-feed-means detector · CPC title
of devices for bringing the circular saw blade to the workpiece or removing same therefrom · CPC title
With condition sensor · CPC title
Responsive to work sensing means · CPC title
with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine (F16P3/08 takes precedence) · CPC title
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Frequently asked questions
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- What does patent US9925683B2 cover?
- Table saws with safety systems are disclosed. The safety systems detect and react to dangerous conditions, such as contact between the blade and a person. The table saws may include a switch, a first light that illuminates to indicate the safety system is operable, and a second light that illuminates to indicate that the safety system is inoperable. The switch may not power the saw when switche…
- Who is the assignee on this patent?
- Sd3 Llc, Sawstop Holding Llc
- What technology area does this patent fall under?
- Primary CPC classification B26D7/24. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 27 2018 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).