Werkman
Peter Johannes Werkman, Singapore SG
Patent application number | Description | Published |
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20100055475 | METHOD FOR PROVIDING A UTENSIL WITH A DECORATION - The invention relates to a method for providing a utensil with a decoration by means of an optical interference grating. The utensil is provided with a sol-gel precursor which is embossed with a flexible stamp to create an optical interference grating. The interference grating can be provided with a second precursor of a material with an index of refraction higher than that of the sol-gel layer, and provided with a transparent, non-scattering topcoat. The invention further relates to an appliance, e.g. an iron or a shaver, coated with an organosilane layer provided with an optical interference grating. | 03-04-2010 |
Pieter Johannes Werkman, Drachten NL
Patent application number | Description | Published |
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20080313936 | Ironing Shoe - An ironing shoe ( | 12-25-2008 |
20100101122 | IRONING SHOE - The invention relates to an ironing shoe ( | 04-29-2010 |
20100107457 | SOLEPLATE FOR AN IRON - The invention relates to an iron ( | 05-06-2010 |
Pieter Johannes Werkman, Singapore SG
Patent application number | Description | Published |
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20090114639 | THIN-FILM HEATING ELEMENT - The invention relates to a heating element comprising an aluminum substrate, an electrically insulating layer based on a sol-gel precursor, and an electrically resistive layer with a thickness smaller than 2 μm. The features of this heating element solve the problem of the crack formation due to a mismatch of thermal expansion coefficient of the aluminum substrate and the resistive layer. Also disclosed is an electrical domestic appliance comprising the heating element of the invention. | 05-07-2009 |