Sheet material separation construction

Details Sheet material separation construction Sheet material separation construction

1981-03-24

1982-12-28

Lesmes, George F.

Stock material or miscellaneous articles

Sheet, web, or layer weakened to permit separation through...

428134, 428135, 428136, 428901, 428251, 428415, 174 685, 339 17R, B32B 310

Patent

active

043661980

ABSTRACT:
A relatively brittle sheet material, for example, a printed circuit board substrate, is subdivided into sections the boundaries of which are defined by apertures which permit the substrate to be fractured at the boundaries. Each aperture has side walls which intersect at points aligned along a separation line. Bending stresses are concentrated at the intersecting side walls to provide a clean straight fracture along the boundary.

REFERENCES:
patent: 3324212 (1967-06-01), Paulley et al.
patent: 3706626 (1972-12-01), Smith et al.
patent: 3780431 (1973-12-01), Feeney
patent: 4216523 (1980-08-01), Harford

Affiliated with

Also associated with

Rating

Sheet material separation construction does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1337348