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Patent No. 6711769

Pillow with retractable umbrella

A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.

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Class 324/361 - With mechanical current reversing means


Subclass of Class 324 - Electricity: measuring and testing
Definition: Subject matter in which the current is caused to reverse
No. of patents: 2
Last issue date: 09/17/2002


NumberTitleIssue Date
6450026Capacitive sensors for measuring humidity and method of making same
The invention concerns a sensor comprising two electrodes (1, 3a) separated by a dielectric material (2). One electrode (3a) being produced by using a non-porous metal sheet, the other electrode (1) being advantageously made of a non-metallic porous mater...
09/17/2002
6366074Unidirectionality in electronic circuits through feedback
A method for creating signal unidirectionality in electronic circuits is disclosed. This invention describes a method for achieving unidirectionality in an electronic circuit with an input side having a signal source and an output side with a load compris...
04/02/2002
 
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