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Publication numberUS889004 A
Publication typeGrant
Publication dateMay 26, 1908
Filing dateMar 10, 1906
Priority dateMar 10, 1906
Publication numberUS 889004 A, US 889004A, US-A-889004, US889004 A, US889004A
InventorsHans Fredrik Hansen
Original AssigneeHans Fredrik Hansen
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 889004 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

No. 889,004. PATENTED MAY 26, 1908..



E. Flanoen;

l No. saooa.



Specication of Letters :Pa-tent.`

Patented May 26, 1908.

Application md Mar-nio, 190e. serai No. 305,341.

To-aZZ whom tf/nay concern:

'Be it known that I, HANS FREDRIK HANSEN, a citizen of the United States, residing at Granite Heights, in the county of Marathon and State of Wisconsin, have invented 'a new and useful Improvement in an Envelop-Opener, of which the following is a specification.

This invention is an improved construction of envelop opener, the object being to provide a cheap and simple construction'of device, by means of whlch `the envelo can b'e uickly and easily opened andfa'll anger of t e blade slipping during said operation, entirely avoided.

Another objectof'the invention is to conl Struct the device in such manner that it can beconveniently carried in the' pocket when desired.

With these objects in v iew the invention consists in the details of construction hereinafter fully described and pointed out in the In the s owin the device arranged for carrying in the poc et. Fig. 2 is a similar view showing the device arranged ready for use as an eny velop opener. Fig. 3 is an edge view artly 1n section. Fig. 4 1s a vertical section'a view, the blade beingshown in elevation. Fig. 5 is an enlarged detail view of the end of the han-` dle in which theblade vis fitted. Fig. 6 is an enlarged detail perspective view of theblade and its shank.

In carrying out my kinvention Iemploy a blade A, which-is formed integral with the shank B, and`b'etween the shank and' blade is the shoulder C. A

D indicates the hollow handle b ifurcated at its forwardend as shown at D', and fitting in said bifurcated'end is the shank B,- arivetf E securing said shank and bifurcatedend, the laterally projecting shoulders C, overlapping and bearlng against the side portion of the handle as indicated at C', in Fig. 4, and it ,will

be noted that the extreme ends `of the bifurcated portion project beyond the shank and its shoulder and form guiding fingers. D2, u `on the opposite sides of the blade .as most c earlyshown in Fig. 3.A The shoulder is beveled in ofpposite directions as shown at C2 in order to acilitate the opening operation as no edge or corner is permitted to project which could catch in the envelop being opened. y

.drawings forming la part of 'this' 4s eclficatlonz-Figure 1 is a perspective view fit over the blade and a portion of t e handle when the devicel is not in use and which isy fitted' uponjthe opposite end of the handle when the device is to b e used, said sheath serving to increase the length ofthe handle and thereby renderthe device more convenient for use, a corrugation or bead D3 being roduced' about midway the length fthe andle and which 'serves as a sto to limit the movement of the sheath when inserted upon said handle from either direction.

The device can be conveniently carried in the pocket as thev blade is when it is desired to use Athe device as kan olpener it is onlytnecessary, to remove the s eath from one end of thehandle and protected bymeans of thesheath as shown 1n Fig. 1 andl lace it u on the opposite'end and the device is rea y for use. y

In operation the blade is inserted beneath the fia of the envelop, wra per of the paper or pac Yage and is then pus ed along 1n the usual manner ,and the guiding fingers D2 will engage the edge of the envelop and will prevent the blade going too far into the envelop and will also prevent the said blade sli ping to one sideor the other. The shoulder' ein beveled in opposite directions at the forwar end, 1 revents said shoulder binding against the e ge of the envelop or wrapper.

Having thus fully described my invention, what I claim as'new and desire .tosecure by Letters Patent, lisz- Y An' envelop o ener comprising a hollow handle bifurcate at its forward end, a blade provided with a shank fitting in said bifurcation, laterali projecting shoulders formed on said shan adjacent said blade, overlappin and bearing against the side portion of sai handle, the eXtreme end of the bifur- HANS FREDRI'K HANSEN.

Witnesses C. E. HELM,


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2528527 *Sep 3, 1946Nov 7, 1950Michael LavanishTie clasp and article holder
US4182033 *Apr 7, 1978Jan 8, 1980The Gillette CompanyScraper assembly
US4622742 *Jun 21, 1985Nov 18, 1986Lee Sang DDisposable safety straight razor
US4765411 *Jan 20, 1987Aug 23, 1988Tennant Jerald LUltraviolet-cured horse shoe and method of shoeing hoofed animals
DE2711341A1 *Mar 16, 1977Sep 22, 1977Igal TovimVerfahren zum beschlag von pferden sowie hufbeschlag
Cooperative ClassificationB26B29/025