GB9917897D0 - The circular spade - Google Patents

The circular spade

Info

Publication number
GB9917897D0
GB9917897D0 GBGB9917897.2A GB9917897A GB9917897D0 GB 9917897 D0 GB9917897 D0 GB 9917897D0 GB 9917897 A GB9917897 A GB 9917897A GB 9917897 D0 GB9917897 D0 GB 9917897D0
Authority
GB
United Kingdom
Prior art keywords
spade
circular
circular spade
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GBGB9917897.2A
Other versions
GB2352606A (en
GB2352606B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HOLMES LESLIE P
Original Assignee
HOLMES LESLIE P
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HOLMES LESLIE P filed Critical HOLMES LESLIE P
Priority to GB9917897A priority Critical patent/GB2352606B/en
Publication of GB9917897D0 publication Critical patent/GB9917897D0/en
Publication of GB2352606A publication Critical patent/GB2352606A/en
Application granted granted Critical
Publication of GB2352606B publication Critical patent/GB2352606B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/003—Drilling with mechanical conveying means
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B11/00—Other drilling tools
    • E21B11/005—Hand operated drilling tools
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B1/00—Hand tools
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/003—Drilling with mechanical conveying means
    • E21B7/005—Drilling with mechanical conveying means with helical conveying means

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Earth Drilling (AREA)
GB9917897A 1999-07-29 1999-07-29 The circular spade Expired - Fee Related GB2352606B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9917897A GB2352606B (en) 1999-07-29 1999-07-29 The circular spade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9917897A GB2352606B (en) 1999-07-29 1999-07-29 The circular spade

Publications (3)

Publication Number Publication Date
GB9917897D0 true GB9917897D0 (en) 1999-09-29
GB2352606A GB2352606A (en) 2001-02-07
GB2352606B GB2352606B (en) 2001-05-30

Family

ID=10858216

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9917897A Expired - Fee Related GB2352606B (en) 1999-07-29 1999-07-29 The circular spade

Country Status (1)

Country Link
GB (1) GB2352606B (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2201813A1 (en) * 1972-10-05 1974-05-03 Robin Pierre
US4282943A (en) * 1979-05-23 1981-08-11 Joseph Leitner Lawn aerator
US4456075A (en) * 1983-02-24 1984-06-26 Hostetter John L Weeding auger with U-shaped blade
US5441118A (en) * 1994-01-04 1995-08-15 Cruz, Jr.; Ramon M. Weed twister

Also Published As

Publication number Publication date
GB2352606A (en) 2001-02-07
GB2352606B (en) 2001-05-30

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030729