U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5377411

Hair Cutting Appliance

A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 136/216 - Evacuated


Subclass of Class 136 - Batteries: thermoelectric and photoelectric
Definition: Apparatus wherein the pyrometer contains a sealed space
No. of patents: 3
Last issue date: 03/30/2004


NumberTitleIssue Date
6713668Solar energy converter and solar energy conversion system
A solar energy converter includes: a light-concentrating instrument; an electron emitter in an insulated vacuum vessel, emitting electrons in a vacuum as a temperature rises by sunlight; an electron accelerator within the light-concentrating instrument; a cathode on...
03/30/2004
6653547Solar energy converter
The solar energy converter comprises an electron emitter and an electron collector. They are provided separate from each other in a vacuum vessel. Solar energy in a wide range of sunlight spectrum can be efficiently converted into electric energy by movin...
11/25/2003
4169379Temperature measuring device for non-contacting temperature measurement
A temperature measuring device for non-contacting temperature measurement includes a radiation pyrometer, located in a pressure-resistant housing. Power cables connect with said housing through pressure-resistant openings. The wall of the housing located ...
10/02/1979
 
Sign InRegister
Username  
Password   
forgot password?