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  1. Technology classes
  2. /F · Mechanical engineering
  3. /F04 · Positive - displacement machines for liquids
  4. /F04C · Rotary-piston, or oscillating-piston, positive-displacement machines for liquids
  5. /F04C 2/00 · Rotary-piston machines or pumps
  6. /F04C 2/02 · Rotary-piston machines or pumps: of arcuate-engagement type, i.e. with circular translatory movement
  7. /F04C 2/063 · With coaxially-mounted members having continuously-changing circumferential spacing between them
  8. /F04C 2/077
F04C 2/077

Having toothed-gearing type drive

Official title: having toothed-gearing type drive

F04C2/077 (Having toothed-gearing type drive) appears on 3 US grants and 5 published applications in this corpus.

Search patents in F04C

Where it sits

  1. FMechanical engineering
  2. F04Positive - displacement machines for liquids
  3. F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids
  4. F04C 2/00Rotary-piston machines or pumps
  5. F04C 2/02Rotary-piston machines or pumps: of arcuate-engagement type, i.e. with circular translatory movement
  6. F04C 2/063With coaxially-mounted members having continuously-changing circumferential spacing between them
  7. F04C 2/077Having toothed-gearing type drive
Granted patents
3
Published applications
5
Assignees
3
Inventors
9
Latest grant
5 Jan 2021

Filings by year

Granted patentsPublished applications
F04C 2/077: granted patents and published applications per publication year
YearGranted patentsPublished applications
199810
199900
200000
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200600
200700
200800
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201300
201401
201500
201601
201700
201811
201900
202000
202110
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202300
202401

1998200820182024

By publication year. Applications have been published since 2001.

Recent patents

  • Variable volume chamber for interaction with a fluid5 Jan 2021US 10,883,498 B2Quest Engines, LLC
  • Multiple vane roto-dynamic variable displacement kinetic system27 Feb 2018US 9,903,204 B2
  • Extracorporeal blood pump for cardiac surgery1 Sep 1998US 5,800,138 A
  • Material Mover18 Jan 2024US 2024/0018963 A1Paddlemover LLC
  • Rotary Piston Machine and Method for Producing a Seal in a Rotary Piston Machine6 Jan 2022US 2022/0003117 A1
  • Variable volume chamber for interaction with a fluid8 Nov 2018US 2018/0320688 A1Quest Engines, LLC
  • A multiple vane roto-dynamic variable displacement kinetic system27 Oct 2016US 2016/0312611 A1
  • Rotational clap suction/pressure device27 Feb 2014US 2014/0056747 A1

Most cited

By later US patents
  • Extracorporeal blood pump for cardiac surgery20US 5,800,138 A1998

Top assignees

Documents
  • PPaddlemover LLC1
  • QEQuest Engines, LLC1
  • QEQuest Engines, LLC1

Often classified with

  • F01CRotary-piston or oscillating-piston machines or engines4
  • F02BInternal-combustion piston engines4
  • A61MDevices for delivering substances into the body1
  • F01DNon-positive displacement machines or engines1
  • F04DNon-positive-displacement pumps1
  • F05CIndexing scheme relating to materials, material properties or material characteristics for machines1
  • F16HGearing1
  • F16JPistons1

Documents that also carry the other class.

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