Abstract

A pump is formed by a housing having an inlet for connection to a source of fluid and an outlet for pumped fluid. A rotor is rotatable within the housing and the inlet and the outlet are spaced apart around the path of the rotor in the housing. The rotor has surfaces (16a, 16b, 16c, 16d) …

Legal parties

Party
Inventors (applicants): Christopher E. Nightingale, Richard P. Hayes-Pankhurst, Graham K. Lacy
Assignees (initial): Quantex Patents Limited (London, GB)
Agents: Douglas E. Jackson (attorney), Stites & Harbison PLLC (attorney)

The application was examined by Mary A Davis (USPTO dept. 3748)

Claims

  • 1. A pump comprising: …
  • 2. A pump according to claim 1 , wherein the first seal has a rotor-engaging …
  • 3. A pump according to claim 1 , wherein the housing includes a generally cylindrical …

International priority data

GB: 0419848.7 / Sep. 7, 2004 (national)

Cited documents

Patents

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  • JP 60111078 A, Jun. 1, 1985
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Brief Description of the Drawings

FIG. 1 is a schematic cross-section through a pump including a housing provided with an inlet and outlet and a rotor rotatable within the housing and sealing against a seal …

Description

Background to the Invention

1. Field of the Invention The invention relates to pumps. 2. Background to the Invention A known form of pump comprises a housing with an inlet for connection to a source …

Description of the Preferred Embodiments

Referring first to FIGS. 1 to 3 , the pump is formed by a housing indicated generally at 10 which may be formed by a plastics moulding of, for example …

More details about Pump With Conveying Chamber Formed in Outer Rotor Surface

Miscellaneous patent data

Located in London (GB), the assignee organization is Quantex Patents Limited, the application number is 13/449,985 (U.S.), the published inventor's name is Hayes-Pankhurst Richard P., similar patents are classified under specially adapted for several machines or engines connected in series or in parallel, the resiliently-deformable wall being a separate member, toothed-gearing type, Each tapered, Arrangements for drive of co-operating members, e.g. for rotary piston and casing, Passage includes vane slot, Counterbalancing fluid directed to intertooth spaces or spaces between adjacent vanes, Intermittently Accelerated and Receding Members Rotate in Same Path (Alternating Piston Type), Radially adjustable, characterised by varying the rotational speed, the exemplary patent drawings are Schematic cross-section through a pump, Similar view to FIG. 1 but showing, Similar view to FIG. 1 but showing, Pump With Conveying Chamber Formed, assigned to a foreign company or corporation, the invention description is illustrated by 8 drawings, the application publication date is Apr. 18, 2012, the invention is named Pump With Conveying Chamber Formed in Outer Rotor Surface, claims 1-36 comprise the invention scope, the applicant's name is Lacy Graham K., the published agent's name is Jackson Douglas E., 17 figures depict the invention details, the primary classification Seal on cylinder engaging rotary member separates inlet and outlet ports has been designated to the document, the grant date is Apr. 15, 2014 (publication date), was examined by Mary A Davis, the main examiner (3748 USPTO department), invented by Richard P. Hayes-Pankhurst et al., the grant publication number is RE044841, the exemplary claims include number 1.

Invention classification information

The invention is classified under Radially-movable sealings for working fluids, Resilient, Resilient Working Member, Cylinder or Partition, With resilient interposed member, Collapsible Progressively Deformed Working Chamber Wall, by changing the form of the inner or outer contour of the working chamber, Axially or radially spaced working chambers, Movable member moved axially, Adjustable, Seal on cylinder engaging rotary member separates inlet and outlet ports. The designated search classifications include Resilient, Resilient Working Member, Cylinder or Partition, Multistage, Seal on cylinder engaging rotary member separates inlet and outlet ports, Non-Metallic Working Member, Cylinder or Partition, Collapsible Progressively Deformed Working Chamber Wall, Movable member moved axially, With resilient biasing means, Spring biased, With resilient interposed member, Axially or radially spaced working chambers, Sliding abutment, Adjustable.

Patent details
Publication number RE044841
Publication date Apr. 15, 2014
Kind code E1
Application number 13/449,985
Application date Apr. 18, 2012
Application type R
Application series code 13
National classification 418/125
Total number of claims 36
Exemplary claims 1
Number of drawings 8
Number of figures 17
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