Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/389
Name: Fluid handling > Liquid level responsive or maintaining systems > With second diverse control
Description: Apparatus wherein the level responding or maintaining flow is increased or diminished by an external means or in response to a change in condition other than liquid level, either by a means acting upon the liquid level responsive control means or by a second means in series or parallel therewith.










Sub-classes under this class:

Class Number Class Name Patents
137/390 Manual control 41


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
4119116 Receptacle fill apparatus Oct. 10, 1978
4119016 Hydraulic control device Oct. 10, 1978
4111218 Absorption process method and apparatus Sep. 5, 1978
4073310 Method and apparatus for controlling the liquid level above a solid bed Feb. 14, 1978
4050447 Deep fat fryer heated fat supply reservoir and fat replenishment device Sep. 27, 1977
4039001 Water storage refill system Aug. 2, 1977

1 2










 
 
  Recently Added Patents
Dental composition, kit of parts and use thereof
Deposition apparatus and method for manufacturing organic light emitting diode display using the same
Charged particle source with multiple selectable particle emitters
Amnion-derived cells, methods of making and uses thereof
System and method for optimizing utilization of inventory space for dispensable articles
Receiver with feedback continuous-time delta-sigma modulator with current-mode input
Stool
  Randomly Featured Patents
Collapsible bone screw apparatus
Technique for performing an automatic channel search and switch during talk-time in mobile transceivers
Cabinet and sliding drawer having improved features
Separation technique for assays
Steam iron
Method and equipment for producing protective-coated steel pipe
Method of forming T-shaped gate
Device for damping water hammer
Method of removing B.sub.2 O.sub.3 encapsulant from a structure
Device for aiding the solubilization of gases in liquids