Method of producing laminated shingle

Details Method of producing laminated shingle Method of producing laminated shingle

1999-07-21

2001-05-22

Crispino, Richard (Department: 1734)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S264000, C156S270000, C156S271000, C156S512000

Reexamination Certificate

active

06235142

ABSTRACT:

FIELD OF THE INVENTION
This invention relates to a method of producing a laminated shingle, i.e. a multi-layer shingle.
BACKGROUND OF THE INVENTION
Laminated shingles are very well known and are shown for example in U.S. Pat. No. 5,209,802 to Hannah et al. and U.S. Pat. No. 5,426,902 to Stahl et al. In laminated shingles, several layers of roofing material are laminated together (by a suitable adhesive) to provide an appearance characterized by variations in thickness, which appearance cannot readily be achieved by a single layer shingle. In addition, the different layers can be coated with different color surfacing material and can have cutouts located in various locations to provide an attractive appearance.
While multi-layer laminated shingles have been very well known for many years, they are costly to produce. One of the difficulties is that a number of separate operations must be performed to cutout the pieces which are to be laminated together and then to laminate the pieces together. Often these operations form a batch process rather than a continuous process, slowing the production line and increasing the cost of production.
BRIEF SUMMARY OF THE INVENTION
It is therefore an object of the invention to provide a method of making a multi-layer shingle in which in a preferred embodiment, the operations required to produce the shingle can be carried out continuously and in simple fashion on an assembly line.
In one of its aspects the invention provides a method of making a multi-layer laminated shingle comprising:
(a) cutting at least one sheet of roofing material into at least four strips, said strips comprising at least one shim, first and second narrow tooth strips each having narrow teeth extending from an edge thereof, and a wide tooth strip having a pair of opposed edges each with wide teeth projecting therefrom,
(b) laminating said shim or shims below said wide tooth strip to produce a first lamination strip,
(c) slitting said first lamination strip longitudinally along its center to produce two half first lamination strips,
(d) and laminating each half of first lamination strip below a narrow tooth strip to produce two second lamination strips.
Further objects and advantages of the invention will appear from the following description, taken together with the accompanying drawings.


REFERENCES:
patent: 4233100 (1980-11-01), Cunningham et al.
patent: 6174403 (2001-01-01), Steiner, Jr. et al.

Affiliated with

Also associated with

Rating

Method of producing laminated shingle does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2468034