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Publication numberUS2291294 A
Publication typeGrant
Publication dateJul 28, 1942
Filing dateNov 8, 1940
Priority dateNov 8, 1940
Publication numberUS 2291294 A, US 2291294A, US-A-2291294, US2291294 A, US2291294A
InventorsAlvin L Holste
Original AssigneeAlvin L Holste
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Letter opener
US 2291294 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

INVENTOR f m H E m L E a M I. m P

Jul 28, 19%., v

I 1A- A Patented July 28, 1942 UNITED STATES 2 Claims.

My invention relates to new and useful improvements in a letter opener made of plastic material comprising a body or case and a lid, said letter opener using a cutter blade for the purpose of opening an envelope by cutting a small strip from edge of an envelope.

A still further object is to provide a device of the character of simple and practical construction which is efiicient in use, relatively inexpensive to manufacture.

Other objects and advantages, reside in the details of construction as more fully here in after described and claimed, reference being had to the accompanying drawing forming part hereof, wherein, like numbers refer to like parts throughout, and in which Figure I is a front elevation view of letter opener with cutter blade shown in dotted outline mounted in position.

Figure II is an elevation sectional view taken on line 11-11 in the direction arrows are pointing in Figure I.

Figure III is an elevation sectional view taken on line IIIIII in the direction arrows are pointing in Figure I.

Figure IV is a lower end view of Figure I.

Figure V is a sectional view taken on line VV in the direction arrows are pointing in Figure I.

Figure VI is a sectional View taken on line VI-VI in the direction arrows are pointing in Figure I.

Figure VII is a right hand elevation view of Figur I.

Figure VIII is a front elevation view of letter opener with cutter blade in operating position while cutting off the edge of an envelope shown in dotted outline.

Figure IX is a diagrammatic plan view of portion of an envelope shown in dotted outline.

Referring now to the drawing in detail.

The drawing in Figure I designates a body or case made of plastic material having a recess I3, on one side of the body or case for holding a cutter blade II. The cutter blade extends down into the arm I5, which has a slot I6 for engagement of one corner of cutter blade II, as shown in dotted line in Figure I.

The cutter blade is held in position by a lid I9, which is beveled on its edges as shown in Figure VI. The lid I9 is held in position by beads I8 which are on the inside edges of recess I3, as shown in Figure VI. The lid I9 has a concave portion 2!! on one edge as shown in Figure V for the means of flipping out said lid.

An arm I running parallel with the body or case and said arm I5 is made of two pieces of plastic material having a slot I6 for a cutter blade. The two pieces are attached together by projections I! inserted into the holes in the other part of arm as shown in the drawing Figure II.

The groove It acts as a gauge when envelope is being cut open as shown in Figure VII.

The Figure IV is shown as bottom end view of letter opener with slot I6, Which is used for end of cutter blade I I as shown in Figure IV and Figure I.

Figure VII is an end view of letter opener with cutter blade II in operating position and 2I is an envelope shown by dotted lines in position in Figure VII and being cut open when being pulled along in groove I4.

The dotted line in Figure VIII designates edge of envelope III, being cut off by cutter blade II and dotted line 2! is body of envelope as shown in Figure VIII or Figure IX. The 2| in Figure IX is a portion of an envelope with the edge of envelope IE! partly cut off by cutter blade I I.

From the foregoing it will be apparent that to open an envelope the latter is inserted into groove I4 and merely by pulling letter opener along edge of envelope, a small strip is taken off, leaving the envelope opened.

It is believed the details of construction, advantages and manner of use of the device will be readily understood from the foregoing, without further detailed explanation.

Having thus described the invention, what I claim is:

1. A letter opener for opening an envelope or the like, said opener comprising of a body or case made of plastic material, and having a recess on one side of body or case in proportion, and adapting for engaging a cutter blade, and said recess having beads on its inner sides for retaining a lid, and said lid being made of plastic material, and having its edges beveled for a frictional engagement in the recess of said body or case.

2. A letter opener for opening an envelope or the like, said opener comprising of a body or case made of plastic material, and having a recess on one side of said body or case in proportion, and adapted for engaging a cutter blade, and said recess having beads on its inner side for retaining a lid, and said lid being made of plastic material, and having its edges beveled for a frictional engagement in the recess of said body or case, and an arm extending from one edge of said body or case, and being formed of two pieces of plastic material, and one piece being attached to the other by the means of projections on one arm inserting into the holes in the other arm, and a slot being formed in said arm for engaging end of a cutter blade.

ALVIN L. HOLSTE.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2456436 *May 11, 1945Dec 14, 1948Edmund C MetzgerEnvelope opener
US2680906 *Oct 31, 1949Jun 15, 1954Leonard J MayerEnvelope opener
US2688187 *Nov 6, 1948Sep 7, 1954Pauli Hjalmar IBlade holder
US2748478 *Mar 26, 1952Jun 5, 1956Malcolm C SheltonEnvelope opener
US2940170 *Oct 18, 1957Jun 14, 1960Matter Gustave OCutter blade holder
US3068569 *Aug 29, 1961Dec 18, 1962Jr Ernest Calvin CampbellLetter opener
US3102335 *Nov 17, 1961Sep 3, 1963Haldeman Donald FLetter opener
US3118228 *Sep 18, 1961Jan 21, 1964 Envelope opener
US4373263 *Dec 17, 1980Feb 15, 1983Eli Lilly And CompanyMolded implant removal knife
US4530154 *Feb 27, 1984Jul 23, 1985Dicarlo Pen CompanySlitter assembly
US5802942 *Oct 10, 1995Sep 8, 1998Fiskars Inc.Paper trimmer
US5881463 *Nov 12, 1996Mar 16, 1999Orcon CorporationCarpet face cutter with coacting surfaces and cutouts for securing the lowermost corner of each cutter blade against deflection
US6745476 *Jan 30, 2003Jun 8, 2004William Korba, Jr.Cutting tool
US7752758 *Jun 9, 2004Jul 13, 2010Meadwestvaco CorporationSystem for storing and unpacking encased articles
US7891100Feb 22, 2011Meadwestvaco CorporationSystem for opening an article encasement
US8079152Dec 20, 2011Hamilton Beach Brands, IncElectric can opener having removable opener tools
US20030140505 *Jan 30, 2003Jul 31, 2003William KorbaCutting tool
US20060138017 *Jun 9, 2004Jun 29, 2006Gelardi John ASystem for storing and unpacking encased articles
US20070157765 *Jan 9, 2006Jul 12, 2007Gabe NeiserPackage opener
US20070164029 *Jan 3, 2007Jul 19, 2007Gelardi John ASystem for Opening an Article Encasement
US20080156816 *Oct 24, 2007Jul 3, 2008Gelardi John AContainer With Cutting Apparatus
US20090230130 *Mar 19, 2009Sep 17, 2009John GelardiSystem for storing and unpacking encased article
US20100206137 *Aug 19, 2010Hamilton Beach Brands, Inc.Electric can opener having removable opener tools
US20110162215 *Jul 7, 2011Hsiu-Man Yu ChenLetter opener
US20140137418 *Nov 5, 2013May 22, 2014Shin-Shi Plastic Mold Industrial, Co., Ltd.Trimmer improver
Classifications
U.S. Classification30/294, 30/DIG.300
International ClassificationB43M7/00
Cooperative ClassificationY10S30/03, B43M7/002
European ClassificationB43M7/00B