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I'd be delighted to receive other commercial product examples. Please feel free to send Suggestions, Additions, Corrections, & Comments.
33.
The bottom section of this proxy ballot has important instruction. the instructions are perforated for easy removal. The mistakeproofing comes in when you try to fit the ballot in the
envelope as shown below:
It does not fit. When you remove the perforated section, final instructions are in your hands. Your attention has been managed through design.
34.
Getting the torque on bolts right is very tricky business for many companies. Huck fasteners mistake-proof this problem using a hybrid: half “pop-rivet,” half bolt. The tension on the bolt is
created in a linear fashion and the “nut” is clamped in place and the excess bolt length is cut off. The only drawback is that removal involves cutting the bolt off and installing a new one after repairs.
35.
Engineering change form requires different signatures depending on the nature of the change being considered. Sometimes engineers would get too many signatures, and sometimes not enough.
The revised form identifies the nature of the change in the columns and indicates unnecessary signatures in gray. Creating forms that help the user fill them out correctly is a part of mistake-proofing.
36.
Every been to a laser light show, where they use lasers to draw pictures (or seen the start of a Chicago Bulls basketball game)?. General Scanning makes a laser part positioner that shows
where parts should be located using the same technology.
37.
 
Gas pumps are equipped with hose couplings that break-away and quickly shut-off the flow of gasoline. Thanks to Mike Ferg for this example
38.
Machine quilters used to hone their sewing skills so that they would move the machine around intricate patterns at a constant speed so that the stitch length would be consistent. With the
invention of Intellistitch (shown at right above), moving the quilting machine at different speeds is automatically taken into account. The machine’s stitch speed is adjusted based on how fast
the machine is moved so that stitch lengths are exactly right.
39.
 When pipes are likely to freeze, the common practice is to open
faucets slightly and let them drip. If your not home or just forget to leave the faucets dripping, you can cause significant damage to pipes and property.
This device automatically opens a valve that discharges just enough water to avoid pipes freezing. Actuation is accomplished without using an external power source.
40.
Telequip offers an automatic coin dispenser. Its selling point is that it cuts 5-7 seconds off transaction times. But it also reduces human error. Employees
no longer need to count out change, and customers are not short changed.
Written permission to use these examples can be obtained by writing a short request with your
name and company affiliation. Generally, I am willing to extended permission free of charge, if you will include a reference to mistakeproofing.com in your document or presentation.
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