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
Fragrance compounds
Control of protein activity using a conducting polymer
Character input device and program for displaying next word candidates based on the candidates' usage history
Method of manufacturing pipe with branch
Systems and methods for authorizing, authenticating and accounting users having transparent computer access to a network using a gateway device
Image forming apparatus, control method and computer-readable medium for stopping a print job during printing by a printer
Display device and method of repairing display device
  Randomly Featured Patents
Positioner device
Nickel activation process
Production of mutant strain of Aspergillus fumigatus, method of assay for inhibiting siderophore biosynthesis and diagnostic method for detecting likely Aspergillus fumigatus infection
Recycling buffer pointers using a prefetch buffer
Apparatus for measuring the thickness and/or irregularity of slivers
System and method for an enhanced analog video interface
Method of utilizing distillation residues of phthalic acid anhydride or maleic acid anhydride
Image processor
Oximes
Multi-dimensional complex nanocrystal structures and methods of making same