Optical sealing clamp and a method for sealing and cutting...

Details Optical sealing clamp and a method for sealing and cutting... Optical sealing clamp and a method for sealing and cutting...

2003-11-26

2008-03-18

Theisen, Mary Lynn (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Laser ablative shaping or piercing

C053S450000, C053S451000, C156S251000

Reexamination Certificate

active

07344671

ABSTRACT:
The invention is specially directed towards intermittent motion packaging machines where the packages are momentarily immobilized at a forming station for the time duration of the package sealing and cutting. The polymeric sheets or films are sealed and cut after being exposed to a laser beam in a controlled and optimized manner. The laser beam is shaped with appropriate optical elements to provide a desired intensity profile in the section of the films to be sealed or sealed and cut. With this method, a package can be sealed and cut simultaneously in one exposure step. An optical clamp holds the films together while they are being sealed by the laser. The optical clamp can reflect back to the films, partially or totally, the laser beam intensity that has not been previously absorbed. The optical clamp further allows to monitor the sealing and cutting process while the process is being performed.

REFERENCES:
patent: 3989778 (1976-11-01), Osborne
patent: 4069080 (1978-01-01), Osborne
patent: 4532753 (1985-08-01), Kovacs
patent: 4924062 (1990-05-01), Zurcher
patent: 4945203 (1990-07-01), Soodak et al.
patent: 5173583 (1992-12-01), de Contencin et al.
patent: 5260766 (1993-11-01), Armitage
patent: 5595670 (1997-01-01), Mombo-Caristan
patent: 5630308 (1997-05-01), Guckenberger
patent: 5659479 (1997-08-01), Duley et al.
patent: 5701725 (1997-12-01), Neri et al.
patent: 5911665 (1999-06-01), Heydarpour et al.
patent: 6103050 (2000-08-01), Krueger
patent: 6207925 (2001-03-01), Kendall
patent: 6237308 (2001-05-01), Quintin et al.
patent: 6387209 (2002-05-01), Nettesheim
patent: 6670574 (2003-12-01), Bates et al.
patent: 6818857 (2004-11-01), Cho et al.
patent: 2002/0008809 (2002-01-01), Babuka et al.
patent: 2002/0144984 (2002-10-01), Mori et al.
patent: 0 472 850 (1992-04-01), None
patent: WO 98/16430 (1998-04-01), None

Affiliated with

Also associated with

Rating

Optical sealing clamp and a method for sealing and cutting... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical sealing clamp and a method for sealing and cutting..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical sealing clamp and a method for sealing and cutting... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3968599