David C Gilbertson

US Patent:

20110127317, Jun 2, 2011

Filed:

Nov 30, 2010

Appl. No.:

12/956489

Inventors:

Marvin Halfen - Hastings MN, US
David J. Gilbertson - Hastings MN, US

International Classification:

B65D 27/00
G09F 23/10

US Classification:

229 672, 229 671, 493394, 4064202

Abstract:

The folder is formed from a single sheet, folded along a fold line to form opposing walls. Each wall, at its top, includes a retaining portion that folds over a metal or plastic channel rod and includes a series of horizontally-spaced holes. The holes extend vertically over the lower edge or a rib of the channel rod. Each channel rod extends laterally past the edge of the folder and includes notches or hook ends that engage a pair of rails. Each tab includes a clip portion that opens downward. The clip portion includes two vertically-oriented inner faces, one or both of which includes inward-facing dimples or protrusions that fit at least partially into the holes in the retaining portion. At least one optional protrusion may be locating, meaning that the top of the protrusion does not engage the channel rod when the tab is fully attached.

US Patent:

8414211, Apr 9, 2013

Filed:

Nov 10, 2011

Appl. No.:

13/293422

Inventors:

Harold Peter Lindelof - Eden Prairie MN, US
Marvin J. Halfen - Hastings MN, US
David J. Gilbertson - Hastings MN, US
Robert Scudder - Rancho Cucamonga CA, US
Michael Goodson - Rancho Cucamonga CA, US
Michael Hacker - Rancho Cucamonga CA, US

Assignee:

Smead Manufacturing Company - Hastings MN

International Classification:

B42F 3/00
B42F 13/02
B42F 13/06
B42F 13/08

US Classification:

402 14, 402 15, 402 18

Abstract:

A prong style file fastener, and method of manufacturer, is disclosed which has a protective element to prevent damage to paper documents and personal injury. In one embodiment, the prongs of the fastener is covered with a heat shrinkable sheath. In another, the prongs are overcoated with a powder coating which is melted thereon.

US Patent:

20140252074, Sep 11, 2014

Filed:

Mar 3, 2014

Appl. No.:

14/195740

Inventors:

- HASTINGS MN, US
David J. Gilbertson - Hastings MN, US

Assignee:

SMEAD MANUFACTURING COMPANY - HASTINGS MN

International Classification:

B42F 7/06
B42C 7/00

US Classification:

229 671, 493356, 493363

Abstract:

Pocket folders for holding documents and method of manufacture are shown in various embodiments. In one embodiment, a single unitary blank is cut and folded into a double slot folder without the need to glue pieces together. The blank is cut to have adjacent panels and an extension panel cut so that they are folded one panel atop the other to form a unitary pocket folder with two pockets. In a second embodiment, a two pocket folder is formed likewise with three adjacent panels as in the first embodiment, but the extension panel is then wrapped with a back panel to create a second pocket which can be folded outwardly.

US Patent:

20140151442, Jun 5, 2014

Filed:

Nov 27, 2013

Appl. No.:

14/092135

Inventors:

David J. Gilbertson - Hastings MN, US
Daniel Seleski - Hastings MN, US

International Classification:

B65D 27/08
B31B 49/04

US Classification:

229 673, 493210

Abstract:

A vertical file folder system is disclosed in several embodiments. The folder () has a plurality of pocket segments which are joined together at their bottom by living hinges which maintain the bottoms edges spaced apart. Port also allow for expansion as do slots An alternative embodiment (FIG. -) show a folder which has a bottom flap side flap and top flap which overlie each other to create a three sided boundary for papers or other contents.