CA2036797A1 - Plug for sealing preservative in wood - Google Patents

Plug for sealing preservative in wood

Info

Publication number
CA2036797A1
CA2036797A1 CA 2036797 CA2036797A CA2036797A1 CA 2036797 A1 CA2036797 A1 CA 2036797A1 CA 2036797 CA2036797 CA 2036797 CA 2036797 A CA2036797 A CA 2036797A CA 2036797 A1 CA2036797 A1 CA 2036797A1
Authority
CA
Canada
Prior art keywords
plug
thread portion
hole
outer end
end portion
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
CA 2036797
Other languages
French (fr)
Other versions
CA2036797C (en
Inventor
William Skene Laidlaw
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.)
Scott Plastics Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA 2036797 priority Critical patent/CA2036797C/en
Publication of CA2036797A1 publication Critical patent/CA2036797A1/en
Application granted granted Critical
Publication of CA2036797C publication Critical patent/CA2036797C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/002—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose self-cutting

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Abstract

The invention provides a plug for sealing substances in holes drilled in wood. The plug has a body of generally circular cross section and a thread portion helically wound around the body between inner and outer end portions thereof. The thread portion has a leading face facing towards the inner end portion and a trailing face facing towards the outer end portion, the leading face being inclined at a shallower angle to a central axis of the body than the trailing face. The plug can be driven into the hole by hammering, but is extracted from the hole by unscrewing in a normal manner. The thread portion is designed to permit relatively easy movement into the hole without rotation, but requires rotation for extraction from the hole. Preferably, the thread portion is flexible and the thread portion is within a shallow conical periphery. The outer end portion has a recess to receive a complementary driver to rotate the plug for extraction.
CA 2036797 1991-02-21 1991-02-21 Plug for sealing preservative in wood Expired - Lifetime CA2036797C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2036797 CA2036797C (en) 1991-02-21 1991-02-21 Plug for sealing preservative in wood

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2036797 CA2036797C (en) 1991-02-21 1991-02-21 Plug for sealing preservative in wood

Publications (2)

Publication Number Publication Date
CA2036797A1 true CA2036797A1 (en) 1992-08-22
CA2036797C CA2036797C (en) 1994-11-08

Family

ID=4147028

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2036797 Expired - Lifetime CA2036797C (en) 1991-02-21 1991-02-21 Plug for sealing preservative in wood

Country Status (1)

Country Link
CA (1) CA2036797C (en)

Also Published As

Publication number Publication date
CA2036797C (en) 1994-11-08

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Legal Events

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