Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Industrial
Class Information
Number: 417/135
Name: Pumps > One fluid pumped by contact or entrainment with another > Liquid pumped by supplying or exhausting gaseous motive fluid to or from pumping chamber > With float actuated control means > Control of motive fluid outlet > With control of pumped fluid outlet
Description: Apparatus wherein said buoyant means further controls the flow of fluid which is pumped from the pumping chamber.










Patents under this class:

Patent Number Title Of Patent Date Issued
8594851 Wastewater collection flow management system and techniques Nov. 26, 2013
6244828 Pump and combination pump and trap with snap-over mechanism and double-seal outlet valve Jun. 12, 2001
5938409 Gas powered fluid pump with exhaust assist valve Aug. 17, 1999
5401142 Condensate discharging device Mar. 28, 1995
5366349 Automatic liquid pump with vapor flow prevention flow outlet valve Nov. 22, 1994
4842487 Pumping device using pressurized gas Jun. 27, 1989
4828461 Apparatus for metering flowable materials in sand core making machines May. 9, 1989
4770610 Frail material slurry pump Sep. 13, 1988











 
 
  Recently Added Patents
Guitar strap attachment means
Systems and methods for advertising on content-screened web pages
System and method for providing program recommendations through multimedia searching based on established viewer preferences
Medical injector
Method and apparatus for error correction in MBMS receipt system
Method for decoding a spatially multiplexed data signal using a maximum likelihood detection
Method and system to generate finite state grammars using sample phrases
  Randomly Featured Patents
Aqueous based slurry and method of forming a consolidated gravel pack
Image forming apparatus having plural image carriers for superimposingly transferring images
Method and installation for producing a panel
Method and apparatus for real-time dynamic midi control
Filter punch and filter collection system
Electronic apparatus including plural processors
Process for preparing 2,2-difluoroethylamine
Switching power supply
Method for reducing particle concentration within a semiconductor device fabrication tool
Devices for forming two-tier helical gears