Turning Your Ideas and Products into Cash
Sometimes you just have to get out and sell it!
When Dave Hoffman came to me for a consultation he needed advice on his invention. Dave had designed and built a wireless dial measurement indicator. Like most engineers (including myself) he was critical of his prototype, he wanted it to have better accuracy. I suggested that he add an attractive label to the digital display and that he have JD Sanders
market the product. That’s when I found out he had ten working prototypes and I suggested he sell them all.
has great marketing skills and in addition he worked at Cromwell Tools for two decades and had a ton of contacts in that arena. Dave had his invention written up in Machine Design and it was off to the races.
Parker Hannifin, Babcock & Wilcox, JJB Engineering, Ansco CNC Specialists, Cornwell Tools and Standard Engineering Group, all of the Akron, Ohio, area, Schoeller–Bleckmann Energy Services, Grayledge Pump & Industrial LLC, Logan Machine Company and GM Lordstown, Ohio, are currently using the wireless test indicator.
The ironic thing is that if Dave had not reached out to others, his prototypes would be sitting on a shelf gathering dust.
November 18, 2010
Patent and Trademark Attorneys
The Machine Design article follow:
October 21, 2010 Article from Machine Design – Wireless Test Indicator
Ohio Inventor and Client
Inventor’s Corner: A wireless test indicator from Dave Hoffman of Hagenhoff LLC
Wireless test indicator measures blind holes
October 21, 2010
by: Leslie Gordon
Our new column Inventor’s Corner showcases inventions that engineers have cooked-up in their spare time.
The wireless test indicator is designed to help toolmakers and lab technicians make accurate remote measurements. The idea comes from Dave Hoffman of Hagenhoff LLC, Canton, Ohio. The patented “Vyndicator” consists of two pieces, a stylus (sensor) and a receiver (display). The invention works something like a dial indicator but it is far more versatile because of the detached stylus. The device has a measurement range of 0.200 in. — five times that of a normal test indicator — and a transmission range of 30 ft.
The stylus unit (transmitter) contains a microprocessor that is connected to a linear sensor. The transmitter sends signals in packets to the receiver. The display unit (receiver) uses a second microprocessor that captures and decodes the signals. Signal packets contain data that describe the movement of the stylus. The receiver microprocessor decodes and displays the movement on an organic LED (OLED) display. Besides a digital readout, the display features a horizontal bar that expands and contracts to represent the movement and amount travel of the stylus.
The wireless test indicator can reduce the amount of time spent in tasks such as centering a part on a milling machine. In addition, the device can serve in areas where it is dangerous for personnel to make measurements. The indicator also lets users take readings in locations where a traditional dial indicator would not be visible, as in a bore.
Before the invention, machinists often had to use creative methods to get a dial indicator to the location to be measured, especially in blind areas or places where a dial indicator is rotated out of view. Hoffman says he got the idea while watching a machinist do involved and time-consuming measurements using a standard test indicator (a tiny dial indicator). “The thought popped into my mind that there should be an easier way to make these measurements,” he says. Are you (or do you know) an engineer who has come up with a sophisticated invention in your spare time? Want to get your idea showcased in Machine Design magazine? Contact firstname.lastname@example.org or (216) 931-9242.© 2010 Penton Media, Inc.
Contact: Dave Hoffman
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