Rotary positive-displacement pump

Information

  • Patent Grant
  • D1078797
  • Patent Number
    D1,078,797
  • Date Filed
    Monday, October 17, 2022
    2 years ago
  • Date Issued
    Tuesday, June 10, 2025
    3 months ago
  • US Classifications
    Field of Search
    • US
    • D15 7
    • D15 8
    • D15 9
    • D23 231
    • D23 232
    • CPC
    • F04D1/00
    • F04D1/14
    • F04D29/406
    • F04D29/426
    • F04D29/4293
    • F04D13/06
    • F04D15/0066
    • F04D15/0245
  • International Classifications
    • 1502
    • Term of Grant
      15Years
Abstract
Description


FIG. 1 is a front, left, top perspective view of a rotary positive-displacement pump showing our new design;



FIG. 2 is a rear, right, top perspective view thereof;



FIG. 3 is a front view thereof;



FIG. 4 is a rear view thereof;



FIG. 5 is a left side view thereof;



FIG. 6 is a right side view thereof; and,



FIG. 7 is a top view thereof.


The broken lines in the drawings illustrate portions of the rotary positive-displacement pump that form no part of the claimed design.


Claims
  • The ornamental design for a rotary positive-displacement pump, as shown and described.
US Referenced Citations (8)
Number Name Date Kind
D818005 Meda May 2018 S
D896845 Kjaerulff Sep 2020 S
D896846 Kjaerulff Sep 2020 S
D949205 Headley Apr 2022 S
D973722 Kjaerulff Dec 2022 S
D976962 Kjaerulff Jan 2023 S
D1017645 Kjaer Mar 2024 S
20150176581 Hofseth Jun 2015 A1
Non-Patent Literature Citations (3)
Entry
Alfa Laval Corp: Instruction Manual “Rotary Lobe Pumps—SX Range”; ESE00915-EN8; dated Sep. 2017; 42 pages.
Alfa Laval Corp: Instruction Manual “Rotary Lobe Pumps—SRU Range”; ESE00693-EN14; dated Sep. 2017; 56 pages.
Alfa Laval Corp: Instruction Manual “SCPP 2 Circumferential Piston Pump”; ESE01682-EN4; dated Feb. 2016; 28 pages.
Divisions (1)
Number Date Country
Parent 35512258 Jan 2021 US
Child 29856759 US