Lightweight dome-shaped casket lid and method of manufacture

Patent metadata

Field	Value
Publication number	US-10064777-B2
Application number	US-201715463767-A
Country	US
Kind code	B2
Filing date	Mar 20, 2017
Priority date	Feb 19, 2010
Publication date	Sep 4, 2018
Grant date	Sep 4, 2018

Abstract

A novel technique for the fabrication of a casket dome lid from, for example, Smooth-One-Side (“S1S”) hardboard is disclosed. The invention is also directed to the fabrication of a casket lid which has a domed configuration both in the lateral and longitudinal directions of the lid. The method comprises the steps of providing a lid blank having a first end, second end, and a central region; providing a pair of diagonal voids oriented at corners of the first end of said blank and extending inward toward the central region; placing the lid blank in a vacuum fixture; and flexing the lid blank into a domed configuration via the vacuum fixture, such that the blank is domed in both a longitudinal and a transverse direction.

First claim

What is claimed is:

1. A method of manufacturing a one-piece unity lid for caskets comprising the steps of:
providing a lid blank having a first end, second end and a central region;
providing a pair of diagonal voids oriented at corners of the first end of said blank and extending inward toward the central region, each void having routed edges at a periphery of the voids;
placing the lid blank into a vacuum fixture;
providing a pair of diagonal voids oriented at corners of the second end of said blank and extending inward toward the central region, each void having routed edges at a periphery of the voids; and
flexing the lid blank into a domed configuration via the vacuum fixture, such that routed edges of the voids meet providing the blank in a domed configuration in both a longitudinal and a transverse direction to provide a single lid blank unity lid.

2. The method of claim 1 , further comprising the step of attaching a header bridge to the central region of the lid blank.

3. The method of claim 2 , further comprising the step of attaching a support bridge to the lid blank between the first end of the lid blank and the header bridge.

4. The method of claim 1 , wherein the step of providing a lid blank comprises providing a first lid blank half and further comprising:
removing the first lid blank half from the vacuum fixture;
providing a second lid blank half having a first end, second end, and a central region;
providing a pair of diagonal voids oriented at corners of the first end of said second lid blank half and extending inward toward the central region, each void having routed edges at a periphery of the voids;
placing the second lid blank half into the vacuum fixture;
flexing the second lid blank half into a domed configuration via the vacuum fixture, such that routed edges of the voids meet providing the blank in a domed configuration in both a longitudinal and a transverse direction; and
pairing the first lid blank half with the second lid blank half with the second end of the first lid blank half facing the second end of the second lid blank half to provide a completed unity lid.

5. The method of claim 4 , further comprising the step of attaching a header bridge to each of the second ends of the lid blank halves.

6. The method of claim 1 , further comprising, after the step of flexing, filling the voids with an adhesive.

7. The method of claim 1 , wherein the step of providing voids comprises removing material from the blank by a Computer Numerically Controlled Router.

8. The method of claim 1 , further comprising the steps of:
providing trim edges around a periphery of the blank and attaching a plurality of frame members to the blank at the trim edges.

9. The method of claim 8 , further comprising the steps of:
providing a support laminate;
shaping the support laminate, such that the support laminate comprises a plurality of tabs;
attaching the support laminate to the first end of the blank; and
securing the tabs to the frame members.

10. The method of claim 1 , further comprising the step of attaching rim members along an edge of the first end and along sides of the central region of the lid blank.

11. The method of claim 1 , further comprising the step of attaching a header bridge to the central region of the lid blank.

12. The method of claim 1 , further comprising, after the step of flexing, filling the voids with an adhesive.

13. The method of claim 1 , further comprising the steps of:
providing trim edges around a periphery of the blank and attaching a plurality of frame members to the blank at the trim edges.

14. The method of claim 13 , further comprising the steps of:
providing a support laminate;
shaping the support laminate, such that the support laminate comprises a plurality of tabs;
attaching the support laminate to the first end of the blank; and
securing the tabs to the frame members.

Assignees

• Matthews Resources Inc
• Matthews Int Corp

Inventors

• Ozbun Leland D

Classifications

• Y10T156/1002

  with permanent bending or reshaping or surface deformation of self sustaining lamina · CPC title

• A61G17/0073 Primary

  Cardboard · CPC title

• B27N5/00

  Manufacture of non-flat articles · CPC title

• A61G17/02 Primary

  Coffin closures; Packings therefor · CPC title