CA2022668A1 - Pipeline padding system - Google Patents

Pipeline padding system

Info

Publication number
CA2022668A1
CA2022668A1 CA 2022668 CA2022668A CA2022668A1 CA 2022668 A1 CA2022668 A1 CA 2022668A1 CA 2022668 CA2022668 CA 2022668 CA 2022668 A CA2022668 A CA 2022668A CA 2022668 A1 CA2022668 A1 CA 2022668A1
Authority
CA
Canada
Prior art keywords
chassis
trench
hopper
fill
backfilling
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 2022668
Other languages
French (fr)
Other versions
CA2022668C (en
Inventor
Ed Klamar
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
Priority claimed from US07/392,503 external-priority patent/US4955756A/en
Application filed by Individual filed Critical Individual
Publication of CA2022668A1 publication Critical patent/CA2022668A1/en
Application granted granted Critical
Publication of CA2022668C publication Critical patent/CA2022668C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Loading Or Unloading Of Vehicles (AREA)

Abstract

Backfilling apparatus adapted to be moved along a trench by a tractor includes a chassis, a hitch attachable to the chassis on either side, hydraulic cylinder for varying the attitude of the chassis to the hitch, a hopper mounted on the chassis to receive backfilling material, a variable speed conveyor carrying backfilling material from the hopper to an elevated position, a shredder accepting material from the conveyor, an inclined vibrating screen receiving shredded material and discharging padding fill onto the pipe in the trench and oversize material onto the padding fill in the trench. A grizzly at the hopper mouth can be positioned to discharge large masses of fill on either side or the rear of the chassis.
CA 2022668 1989-08-11 1990-08-03 Pipeline padding system Expired - Lifetime CA2022668C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US392,503 1989-08-11
US07/392,503 US4955756A (en) 1988-05-31 1989-08-11 Pipeline padding system

Publications (2)

Publication Number Publication Date
CA2022668A1 true CA2022668A1 (en) 1991-02-12
CA2022668C CA2022668C (en) 1996-02-27

Family

ID=23550852

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2022668 Expired - Lifetime CA2022668C (en) 1989-08-11 1990-08-03 Pipeline padding system

Country Status (1)

Country Link
CA (1) CA2022668C (en)

Also Published As

Publication number Publication date
CA2022668C (en) 1996-02-27

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKEC Expiry (correction)

Effective date: 20121202