If you find a patent number or patent date by this manufacturer that is not on this
list, please contact the Site Historian.
Key to Links for Patent Information
USPTO = U.S. Patent Office .
Images of the actual patent can be viewed on the U.S. Patent Office web site but
a special TIFF viewer must be installed with your browser in order properly work.
More information on how to configure your computer to view these patents can be
found at TIFF image Viewers
for Patent Images.
DATAMP = Directory of American Tool And
Machinery Patents . A sister site to VintageMachinery.org with information
on patents related to machinery and tools. A much easier user interface than the
USPTO's for finding information on machinery patents.
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5,741,102
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Apr. 21, 1998
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Removable quasi-ratchet fastener
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Gerald W. Everett |
Normal, IL |
"There are a number of fastening applications where the ease of a push-in fastener is desirable, where it is also desirable to be able to remove the fastener without damaging the fastener or the fastened structures, and where it is not possible to access the pushed-in end of the fastener. For example, electrical and telecommunications outlet cover plates need to be secured to the outlet box and also need to be removable with damage..." |
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Removable quasi-ratchet fastener
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Ralph R. Trimmell |
Oak Park, IL |
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5,842,822
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Dec. 01, 1998
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Removable quasi-ratchet fastener
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Gerald W. Everett |
Normal, IL |
This patent's application was a continuation-in-part of the application that became patent 5,741,102. |
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Removable quasi-ratchet fastener
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Ralph R. Trimmell |
Oak Park, IL |
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