CA2351181A1 - Beaver control screen for culvert pipe - Google Patents

Beaver control screen for culvert pipe Download PDF

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Publication number
CA2351181A1
CA2351181A1 CA 2351181 CA2351181A CA2351181A1 CA 2351181 A1 CA2351181 A1 CA 2351181A1 CA 2351181 CA2351181 CA 2351181 CA 2351181 A CA2351181 A CA 2351181A CA 2351181 A1 CA2351181 A1 CA 2351181A1
Authority
CA
Canada
Prior art keywords
layer
conical
apex
control screen
rods
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 2351181
Other languages
French (fr)
Other versions
CA2351181C (en
Inventor
Marc Fleury
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.)
Individual
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 2351181 priority Critical patent/CA2351181C/en
Publication of CA2351181A1 publication Critical patent/CA2351181A1/en
Application granted granted Critical
Publication of CA2351181C publication Critical patent/CA2351181C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
    • E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Paper (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

The beaver control screen has a cone-shaped screen having a base, an apex and a horizontal axis. A first set of spaced-apart rods extends from the base to the apex and are disposed in a first conical layer. A second set of rods is disposed in a second conical layer inside the first conical layer and extends toward the apex over a distance of about one-half the length of the first conical layer. The first and second conical layers are set at different angles with the horizontal axis such that a distance between a rod in the first layer and an adjacent rod in the second layer is a same distance along the adjacent rod. At the apex of the screen, the rods in the first conical layer are alternately affixed to the outside edge and to the inside edge of an annular plate.
CA 2351181 2001-06-18 2001-06-18 Beaver control screen for culvert pipe Expired - Lifetime CA2351181C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2351181 CA2351181C (en) 2001-06-18 2001-06-18 Beaver control screen for culvert pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2351181 CA2351181C (en) 2001-06-18 2001-06-18 Beaver control screen for culvert pipe

Publications (2)

Publication Number Publication Date
CA2351181A1 true CA2351181A1 (en) 2002-12-18
CA2351181C CA2351181C (en) 2005-09-06

Family

ID=4169328

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2351181 Expired - Lifetime CA2351181C (en) 2001-06-18 2001-06-18 Beaver control screen for culvert pipe

Country Status (1)

Country Link
CA (1) CA2351181C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109162264A (en) * 2018-11-02 2019-01-08 广州市卓源机电科技有限公司 A kind of unpowered automatic sewage blocking device of intake

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109162264A (en) * 2018-11-02 2019-01-08 广州市卓源机电科技有限公司 A kind of unpowered automatic sewage blocking device of intake
CN109162264B (en) * 2018-11-02 2023-10-31 广州市卓源机电科技有限公司 Unpowered automatic trash device for water intake

Also Published As

Publication number Publication date
CA2351181C (en) 2005-09-06

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20210618