Scraping tool

Details Scraping tool Scraping tool

2008-10-22

2011-12-27

Fridie, Jr., Will (Department: 3724)

Turning

Process of turning

C082S047000

Reexamination Certificate

active

08082823

ABSTRACT:
A stationary frame is positioned in surrounding relation with the surface of a polyethylene conduit to be prepared for scraping preliminary to performing electrofusion on the conduit by a keyhole operation in an excavated underground location. A scraper tool is mounted on the frame in a fixed longitudinal position to rotate around the surface of the conduit. A cutting blade of the scraping tool extends longitudinally a preselected length on the conduit into contact with the surface of the conduit. Rotation of the scraper tool carries the cutting blade completely around the surface of the conduit to remove a uniform layer of material from the surface of the conduit. Any out of roundness existing in the conduit is removed before the scraping operation is commenced. Uniform compression is applied by split clamps surrounding the conduit. Compression of the clamps restores the conduit to a concentric configuration preliminary to the electrofusion operation.

REFERENCES:
patent: 3613489 (1971-10-01), Randich
patent: 3848489 (1974-11-01), Santana
patent: 4091514 (1978-05-01), Motes-Conners et al.
patent: 4430913 (1984-02-01), Williamson
patent: 4934109 (1990-06-01), Allred
patent: 5054342 (1991-10-01), Swiatowy et al.
patent: 5364207 (1994-11-01), Reber et al.
patent: 5430921 (1995-07-01), McGuire
patent: 5549024 (1996-08-01), Ricci
patent: 5613807 (1997-03-01), Reber et al.
patent: 5624206 (1997-04-01), Cohen et al.
patent: 5639394 (1997-06-01), Conley
patent: 5894771 (1999-04-01), Braun et al.
patent: 5894772 (1999-04-01), Nodar
patent: 6669406 (2003-12-01), Hutton et al.
patent: D492950 (2004-07-01), Place
patent: 6786118 (2004-09-01), Lumm et al.
patent: 6920812 (2005-07-01), Jackson et al.
patent: 2002/0129684 (2002-09-01), Oswald
patent: 2004/0188013 (2004-09-01), Temple
patent: 2005/0022353 (2005-02-01), Viola et al.
patent: 1024272 (1998-01-01), None

Affiliated with

Also associated with

Rating

Scraping tool does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Scraping tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scraping tool will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4312879