Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Electrical & Energy
Class Information
Number: 373/109
Name: Industrial electric heating furnaces > Resistance furnace device
Description: Subject matter including electrical resistance means as the heating element.










Sub-classes under this class:

Class Number Class Name Patents
373/115 Charging or discharging 40
373/135 Control 31
373/113 For cooling 28
373/116 For manipulation of the charge or melt (e.g., stirring) 21
373/137 Lining 82
373/117 With heating element detail 58
373/110 With internal atmosphere control (e.g., pressure, vacuum, etc.) 52


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
4247734 Flexible thermocouple for vacuum electric furnaces Jan. 27, 1981
4033564 Crucible for melting, heat retention and pouring of metals Jul. 5, 1977

1 2










 
 
  Recently Added Patents
Image processing system and method
Magnetic reading and writing device
Method to quantify siRNAs, miRNAs and polymorphic miRNAs
Detachably integrated battery charger for mobile cell phones and like devices
Methods and apparatus for imaging in conjunction with radiotherapy
Reading apparatus and reading method
Method for forming contact in an integrated circuit
  Randomly Featured Patents
Method and apparatus for observing three-dimensional localizations of in vivo expressed genes as well as method and apparatus for observing minute three-dimensional localizations of in vivo ex
Intraocular gradient-index lenses used in eye implantation
Recirculating loop memory array having a shift register buffer for parallel fetching and storing
Apparatus for actuating a sidemovement correcting member of a machine for correcting the sidemovement of a travelling sheet-like article
Portable sun protector
Method and system for measuring the amplitude and phase angle of harmonics in a periodic signal
Processing circuit having an error detecting and correcting circuit therein
Pre-compressed air weapon
Air ventilation and washing system
Display device, apparatus for producing display device, and method for producing display device