Self-sharpening perforator for plastic film

Details Self-sharpening perforator for plastic film Self-sharpening perforator for plastic film

1988-03-30

1989-08-01

Schran, Donald R.

Cutting

Tool or tool with support

Reciprocable type

83695, 83837, 83846, 83751, 83620, B26D 712, B26F 118, B26F 114

Patent

active

048524425

ABSTRACT:
A self-sharpening perforating punch head for perforating a web of plastic film is formed of one or more plates of a semirigid plastic resin, e.g. acetal homopolymer. The head has a row of tapered and beveled teeth which form a cutting edge at the back plane of the head. The cutting edge renews itself as the material wears by plastic-on-plastic abrasion. There are gaps provided at intervals among the teeth.

REFERENCES:
patent: 545711 (1895-09-01), Miller
patent: 604150 (1898-05-01), Hoberg, Sr.
patent: 3147658 (1961-11-01), Boyd
patent: 4506816 (1985-03-01), Roccaforte
patent: 4653372 (1987-03-01), Pottorff
patent: 4723466 (1988-02-01), Pottorff
patent: 4732068 (1988-03-01), Yasuda et al.
Jackson et al., Acetal Homopolymer, Modern Plastics Encyclopedia, pp. 8-9, 1985.

Affiliated with

Also associated with

Rating

Self-sharpening perforator for plastic film does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-sharpening perforator for plastic film, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-sharpening perforator for plastic film will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-124347