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IPC Main Group
F02M 5/00

Float-controlled apparatus for maintaining a constant fuel level in carburettors

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Subclass:
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF

5 direct subcodes

Child Classifications

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  • F02M 5/06 having adjustable float mechanism, e.g. to meet dissimilarities in specific gravity of different fuels
  • F02M 5/08 having means for venting float chambers
  • F02M 5/1 having means for preventing vapour lock, e.g. insulated float chambers or forced fuel circulation through float chamber with engine stopped

Top Applicants

Top 10 applicants by patent filingsfor class F02, 2013–2023, worldwide · Source: EPO PATSTAT

  1. TOYOTA MOTOR CORPORATION 8,687
  2. ROBERT BOSCH DE 8,328
  3. FORD GLOBAL TECHNOLOGIES US 7,423
  4. GE (GENERAL ELECTRIC COMPANY) US 5,732
  5. UNITED TECHNOLOGIES CORPORATION (UTC) US 5,592
  6. HYUNDAI MOTOR COMPANY KR 4,699
  7. TOYOTA MOTOR CORPORATION JP 4,541
  8. DENSO CORPORATION 3,711
  9. WEICHAI POWER COMPANY 3,486
  10. SAFRAN AIRCRAFT ENGINES FR 3,249