Please add to your address book to ensure our emails reach you. View online
Crutchfield logo
Look good, feel great with Beautiful Skin™     Award Winning Newsletter     May 2015
Gift Certificate
Evolution of can tops

When removable pull tops came to be recognized as a significant litter problem and safety hazard, can manufacturers searched for alternatives. The Coors firm, which had pioneered the aluminum beer can, came up with an “environmental package.” Six cans were sold held together with drops of glue, thus eliminating the need for any other wrapping, and the cans were opened by first depressing a small button to break the pressure seal and then punching in a larger button to provide a drinking hold This awkward design soon led to today’s familiar can top.

From: The Evolution of Useful Things by Henry Petroski


Crutchfield Dermatology
1185 Town Centre Drive Suite 101
Eagan, MN 55123

All the information contained here is of a very general nature. For specific diagnoses and treatment plans, please consult your dermatologist and/or primary care physician.

© Crutchfield Dermatology. All rights reserved.

Dermatology Email Marketing