US2647313A - Envelope opener - Google Patents

Envelope opener Download PDF

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Publication number
US2647313A
US2647313A US162458A US16245850A US2647313A US 2647313 A US2647313 A US 2647313A US 162458 A US162458 A US 162458A US 16245850 A US16245850 A US 16245850A US 2647313 A US2647313 A US 2647313A
Authority
US
United States
Prior art keywords
envelope
edge
roller
channel
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US162458A
Other languages
English (en)
Inventor
Ohlsson Sven Olle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ADDO AB
Original Assignee
ADDO AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ADDO AB filed Critical ADDO AB
Application granted granted Critical
Publication of US2647313A publication Critical patent/US2647313A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43M—BUREAU ACCESSORIES NOT OTHERWISE PROVIDED FOR
    • B43M7/00—Devices for opening envelopes
    • B43M7/005—Devices for opening envelopes with at least two cutting discs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S30/00—Cutlery
    • Y10S30/03—Envelope openers

Definitions

  • Swed n a mira etism of Swa lg Annlicatinuhtlayild, 195Q,:$e:ialmaliases .Jndmda i949 4 Qlaimstto-2am the disadvantage that the strips cut off make the desk untidy and easily clog the opener so that it cannot function in the intended manner until it has been cleaned.
  • the principal object of the present invention is to provide an envelope opener which does not present the above-mentioned disadvantages inherent in prior art openers. It is also an object of the invention to provide an envelope opener having very simple and cheap construction and which i extremely easy to operate.
  • Fig. 1 is a top view of the envelope opener according to the invention.
  • Fig. 2 shows, on a larger scale, the cutting means of the opener as Well as the adjacent parts of the frame in horizontal projection.
  • Fig. 3 is a section on line III-III in Fig. 2.
  • Fig. 4 is a section on the line IVIV of Fig. 2.
  • the illustrated envelope opener has a relatively heavy, elongated frame I provided with a longitudinal guide channel 2 for leading an envelope edge past a cutting means mounted on the frame by introducing the edge of the envelope ing being, however, ground so as to present a relatively sharp peripheral edge 8.
  • the peripheral edge may also be formed as a separate ring secured to the exterior of the outer race ring of the ball bearing.
  • the race ring carrying the peripheral edge 8 is, moreover, fixedly connected with a disk 9 projecting somewhat from the frame I out of the pocket 3, as will appear from Fig.
  • the periphery of the disk being knurled in order that it may be possible 2 easily to rotate-the roller by .exertins a far than the edge .of the d sk .9 with a fing r. gr ater part .of th rol er 5 is covered by a to attached .to the pin '1 and having a .si channeL-shapedfiaps .lgl 1'2 igs-:2 s reaching d wnwardly int the pocke 3 adjacent the tellers 4 and 75.. iil ilaps .15] and 'tla eshapsd t.
  • the pins 6 and! are so located that the peripheral, cylindrical surface of the abutment roller 4 projects into the space in pocket 3 between the flaps I I and I2 while the peripheral edge 8 of the cutting roller 5 projects into the said space from the other side in immediate proximity to the peripheral surface of the roller 4 but without coming into contact therewith.
  • the distance between the periphery of the roller 4 and the peripheral edge 8 should be chosen so as to approximately correspond to, or, preferably,
  • the frame I may be provided with two guiding rods I4 which are preferably of round cross section and are arranged above the guide channel 2 on each side thereof. It is possible to let ones fingers slide along these rods, while the envelope edge is moved through the guide channel 2 past the cutting means.
  • a device for. opening envelopes by slittin through-one wall thereof comprising; a frame formed with a longitudinal guide channel to eceive the edge of an envelope, a pocket formed in the frame intersecting the channel adjacent one end of the frame, parallel pins upstandin in the pocket on opposite sides of the aggis o said channel, rollers on said .pins having their peripheries spaced on opposlte'sides of the axis of the channel, the periphery of one roller being cylindrical and the periphery of the other roller being formed with projecting V-shaped cutting edge, and a thumb-wheel integral with said other roller having its edge projecting from the side of said pocket.
  • a device for opening envelopes by slitting through one wall thereof comprising; a frame formed with a longitudinal guide channel to receive the edge of an envelope, a pocket formed in the frame intersecting the channel adjacent one end of the frame, parallel pins upstanding ripheries spaced on opposite sides of the axis of the channel, the periphery of one roller bein cylindrical and the periphery of the other roller being formed with projecting V-shaped cuttin edge, a thumb-wheel integral with said other roller having its edge projecting from the side of said pocket, and guide rails extending along the frame above the channel and also above said rollers.
  • the shield includes projecting flaps on opposite sides of the space between the rollers extending in the pocket on opposite sides of the axis of said channel, rollers on said pins having their peinto the said pocket in alignment with said channel and shaped to form a continuation of said channel.

Landscapes

  • Knives (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
US162458A 1949-05-23 1950-05-17 Envelope opener Expired - Lifetime US2647313A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE295411X 1949-05-23

Publications (1)

Publication Number Publication Date
US2647313A true US2647313A (en) 1953-08-04

Family

ID=20307329

Family Applications (1)

Application Number Title Priority Date Filing Date
US162458A Expired - Lifetime US2647313A (en) 1949-05-23 1950-05-17 Envelope opener

Country Status (6)

Country Link
US (1) US2647313A (en))
BE (1) BE495824A (en))
CH (1) CH295411A (en))
DE (1) DE820867C (en))
FR (1) FR1018103A (en))
GB (1) GB676330A (en))

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3597843A (en) * 1969-03-21 1971-08-10 John S Kettlestrings Device for opening envelopes
US4693004A (en) * 1986-03-28 1987-09-15 Salvio Plana Envelope opener
WO2006121256A1 (en) 2005-05-12 2006-11-16 Rass Its Corporation Device for opening envelopes
US20060272159A1 (en) * 2005-06-03 2006-12-07 Rubin Richard H Apparatus and method for cutting items and method of forming the same
US20090071014A1 (en) * 2007-09-13 2009-03-19 Cornelius Chow Flexible strip trimmer
US20090235537A1 (en) * 2007-12-28 2009-09-24 Stephen Fisher Blister package opener
US9415521B1 (en) * 2014-03-17 2016-08-16 Christ Sliver Handheld drywall cutter device
US20230256637A1 (en) * 2020-07-15 2023-08-17 Tonyazzopardi Holdings, Llc Throatless power rotary shears

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1031578A (en) * 1911-08-11 1912-07-02 August L Palis Envelop-opener.
US1607010A (en) * 1923-07-18 1926-11-16 Charles C Madsen Envelope opener
US2019499A (en) * 1933-11-23 1935-11-05 American Can Co Scoring machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1031578A (en) * 1911-08-11 1912-07-02 August L Palis Envelop-opener.
US1607010A (en) * 1923-07-18 1926-11-16 Charles C Madsen Envelope opener
US2019499A (en) * 1933-11-23 1935-11-05 American Can Co Scoring machine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3597843A (en) * 1969-03-21 1971-08-10 John S Kettlestrings Device for opening envelopes
US4693004A (en) * 1986-03-28 1987-09-15 Salvio Plana Envelope opener
WO2006121256A1 (en) 2005-05-12 2006-11-16 Rass Its Corporation Device for opening envelopes
JP2008544875A (ja) * 2005-05-12 2008-12-11 ラス アイティエス コーポレーション 封筒開封器
EP1893389A4 (en) * 2005-05-12 2009-06-03 Rass Its Corp DEVICE FOR OPENING ENVELOPES
US20060272159A1 (en) * 2005-06-03 2006-12-07 Rubin Richard H Apparatus and method for cutting items and method of forming the same
US20090071014A1 (en) * 2007-09-13 2009-03-19 Cornelius Chow Flexible strip trimmer
US20090235537A1 (en) * 2007-12-28 2009-09-24 Stephen Fisher Blister package opener
US8443518B2 (en) * 2007-12-28 2013-05-21 Stephen Fisher Blister package opener
US9415521B1 (en) * 2014-03-17 2016-08-16 Christ Sliver Handheld drywall cutter device
US20230256637A1 (en) * 2020-07-15 2023-08-17 Tonyazzopardi Holdings, Llc Throatless power rotary shears

Also Published As

Publication number Publication date
GB676330A (en) 1952-07-23
BE495824A (en))
CH295411A (de) 1953-12-31
DE820867C (de) 1951-11-12
FR1018103A (fr) 1952-12-26

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