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Just Wondering

On 1/29/2012 10:57 PM, zzzzzzzzzz wrote:
On Sun, 29 Jan 2012 23:40:37 -0500, wrote:

On Sun, 29 Jan 2012 19:37:28 -0800, wrote:

wrote in message news
On 30 Jan 2012 02:05:16 GMT, Puckdropper
puckdropper(at)yahoo(dot)com wrote:

z wrote in
:

A computer with a video camera could watch you as you make the cut.
It would "know" what the saw looked like and a piece of wood, but
anything too close to the blade would set it off.

What does "set it off" do? It's in there.

It's another method, but not something I think would really work.
There's just too much information to process to prevent false trips
and ensure real ones. Anyone ever played with the Xbox Kinect?

Puckdropper

It activates the mechanism to stop the blade.

Puckdropper
Both the sensor and the stop mechanism are covered by SS extensive
patent protection.

================================================== ====
Inductrive proximity sensors have been around for ever. Good luck defending
that pattent.
It is NOT an inductive proximity sensor though - it is a CONTACT
sensor. You need to TOUCH the blade to drip it - which is half the
solution. Stopping the blade within 1 tooth of rotation a milisecond
or so after contact - quickly enough to avoid flesh damage - is
PERHAPS the mosre critical technology.

It doesn't matter whether it is a proximity or contact sensor. The fact that
it is a sensor detecting flesh (capacitance/inductance or proximity/contact
make no difference) causing something to happen to "safe" the blade, is what
is claimed in the patent. Capacitance sensors have been around for eons but
safeing a table saw blade hasn't. They are irrelevant to these patents.

What if you developed a technology that was true "proximately", by
having the operator wear a latex-thin glove that would cause the blade
to drop an instant BEFORE contact was made?