Concrete extruder attachment for a vehicle

• US 6,962,490 B2
• Filed: 10/23/2003
• Issued: 11/08/2005
• Est. Priority Date: 08/27/2003
• Status: Active Grant

• Current Assignee: Lynda Alice Garden
• Original Assignee: Lynda Alice Garden
• Inventors: Garden, Norman John
• Primary Examiner(s): HECKENBERG JR, DONALD H
• Application Number:
  US10/691,842
• Publication Number:
  US 20050048150A1
• Time in Patent Office: 747 Days
• Field of Search: 425/63, 425/64, 425/65, 249/3, 404/98, 404/105
• US Class Current: 425/64
• CPC Class Codes: E01C 19/4893 Apparatus designed for railless operation

Abstract

A concrete extruder attachment for a vehicle includes a hopper adapted to hold flowable concrete. The hopper has an upper concrete inlet and a lower concrete outlet. A slip form is connected to the lower concrete outlet. An internal vibrator causes concrete to flow from the hopper through the lower concrete outlet to the form. A mounting is provided which is adapted to mount to a vehicle. A hopper support is secured to the hopper. The hopper support is pivotally mounted to the mounting for pivotal movement between a first position with the hopper extending toward a first side of the vehicle and a second position with the hopper extending toward a second side of the vehicle. The support is selectively locked in one of the first position or the second position. The ability to pivot the hopper enables the concrete extruder to access corners.

Claims

1. A concrete extruder attachment for a vehicle, comprising:

a hopper adapted to hold flowable concrete, the hopper having an upper concrete inlet and a lower concrete outlet;

a slip form connected to the lower concrete outlet;

means for causing concrete to flow from the hopper through the lower concrete outlet to the slip form;

a mounting adapted to rigidly mount to one of a front or a back of a motor vehicle;

a hopper support arm secured to the hopper, the hopper support arm being pivotally mounted to the mounting for pivotal movement about a substantially vertical pivot axis between a first position with the hopper extending toward a first side of the vehicle and a second position with the hopper extending toward a second side of the vehicle;

means for selectively locking the hopper support arm in a selected one of the first position or the second position, such that upon release of the locking means the hopper support arm is free to pivot about the pivot axis and swing in an arc to an other of the first position or the second position.

2. The concrete extruder as defined in claim 1, wherein the means for causing concrete to flow is a vibrator positioned within the hopper.

3. The concrete extruder as defined in claim 1, wherein the means for selectively locking the hopper support in one of the first position or the second position consists solely of opposed locking pin receiving apertures extending from opposed sides of the hopper support arm, such that a locking pin is extended through a selected one of the locking pin receiving apertures and into engagement with the mounting in order to maintain the hopper support arm in one of the first position or the second position.