US3439832A - Key for opening of cans or the like equipped with a tearing tongue - Google Patents

Key for opening of cans or the like equipped with a tearing tongue Download PDF

Info

Publication number
US3439832A
US3439832A US652937A US3439832DA US3439832A US 3439832 A US3439832 A US 3439832A US 652937 A US652937 A US 652937A US 3439832D A US3439832D A US 3439832DA US 3439832 A US3439832 A US 3439832A
Authority
US
United States
Prior art keywords
key
leg portions
cans
opener
opening
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
US652937A
Other languages
English (en)
Inventor
Emil Liesenfeld
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3439832A publication Critical patent/US3439832A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B7/00—Hand- or power-operated devices for opening closed containers
    • B67B7/40—Devices for engaging tags, strips, or tongues for opening by tearing, e.g. slotted keys for opening sardine tins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/42—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions with cutting, punching, or cutter accommodating means
    • B65D17/46—Wires, strings or the like, e.g. rip cords
    • B65D17/462—Tearing-strips or -wires
    • B65D17/464—Tearing-strips or -wires with tongues or tags for engagement by slotted keys

Definitions

  • a key for opening of cans or the like being equipped with a tearing tongue comprising a band buckled to form two leg portions having substantially equal length and disposed at nearly 90 relative to each other.
  • One of the leg portions has a longitudinal slot and the other of the leg portions serves as handle during rotation of the key.
  • the inner side of the buckle point of the band has a profile complementary to the outer contour of the cross-section of a thickened seam edge portion of the can, and the key is secured to the can self-clampingly prior to its use.
  • the present invention relates to a key for opening of cans or the like, equipped with a tearing tongue in general, and to such key which has a longitudinal slot for insertion and rolling up of the tearing tongue and which is attached prior to the use thereof to the thickened seam of the can in a rigidly clamping manner.
  • the key is not suitable for the joining into larger groups, which can be aligned on a feeding rail, in order to secure the same automatically to the cans by means of a machine equipped with a press ram. Since the shaft of the previously known can opener, which is equipped with the longitudinal slot, is thickened or widened at its free end, the manipulation is also more difiicult. The key abuts with this thickening portion the can wall, whereby, at least at the start, the winding of the tearing strip is disturbed.
  • the key comprises a buckled metal band with two about equally long leg portions which are disposed at an angle of slightly less than 90 towards each other and one of the leg portions is equipped with a longitudinal slot and the other of the leg portions serves as handle during rotation of the key, and wherein the inner side of the buckled portion of the key has a profile complementary to the outer contour of the crosssection of the thickened can seam.
  • the can opener in accordance with the present invention comprises substantially a rod buckled nearly at a right angle at about the center, it is thus of the possibly simplest structure.
  • the longitudinal slot for insertion and for rolling up of the tearing tongue is provided, while the other of the leg portions serves, however, for its entire length as a onearmed lever and increases thereby the effective torque.
  • the leg portion serving as a handle during rotation of the key is widened in the plane in which the two leg portions are disposed.
  • the mentioned widening of the leg portions serving as handle can comprise a leg portion bent to an eye or the leg portion section turned about its longitudinal axis for
  • the leg portion equipped with the longitudinal slot is subjected to a certain torsion strain, so that it is suitably waved once or several times cross-wise to its longitudinal axis, whereby a stiffening of the leg portion can be brought about.
  • the latter can be lined up without any difficulty on a feeding rail of a machine, which applies with pressure by means of a press ram one key after another on the thickened seam edge of the cans fed thereto continuously.
  • an inwardly pressed out projection on the leg portion equipped with the longitudinal slot and disposed below its top point.
  • this projection is arched and is adjusted to the outer surface of the can casing.
  • the key can also be manufactured of a suitable band of synthetic material.
  • FIG. 1 is a perspective front elevation of a can opener designed in accordance with the present invention, which is rigidly clamped to a can;
  • FIG. 2 is a top plan view of the can together with the can opener, as shown in FIG. 1;
  • FIG. 3 is a front elevation, partly in section, of the can together with the key opener mounted thereon;
  • FIG. 4 is a side elevation of a can opener alone, separated from the can;
  • FIG. 5 is an elevation of the can opener disclosed in FIG. 4 seen in the direction of the arrow V--V;
  • FIG. 6 is a side elevation of another embodiment of the can opener having a cross-wise waved leg portion.
  • the can comprises, in known manner, a casing 3 of cylindrical shape and two circular covers 1, which are connected with the can casing by means of thickened seam edges 2.
  • the can casing 3 has furthermore the known tearing band, the tearing tongue 4 of which is inserted into a longitudinal slot 7 of the can opener and which is wound thereon upon rotation of the can opener.
  • the key designed in accordance with the present invention comprises a band of metal or synthetic material of a width, by example, of about 4 mm., which band is bent about for a right angle and has two leg portions of substantially equal length of, by example, a length of about 30 mm.
  • the can opener On the inner side of the buckled point 9, the can opener has a profile complementary to the cross-section of the outer contour of the thickened can seam edge 2, so that it surrounds the same rigidly clampingly.
  • the one leg portion 5 of the can opener has a corresponding profile.
  • a cam ⁇ 10 extends inwardly which simplifies and makes more reliable the rigid clamping of the can opener by pressing on the thickened can seam edge. Since the loose key is buckled slightly less than a right angle, it widens slightly up to a right angle upon pressing the same onto the cam seam edge, whereby both leg portions press resiliently towards the can.
  • one leg portion 6 of the can opener is disposed straight, while the other leg portion 5 is equipped with an eye 8, which increases the engaging face for the pressure exerting finger.
  • the leg portion 6' has a plurality of waves, in order to bring about an increased resistance moment for the torsion strain.
  • the other leg portion 5 has, on the other hand, a section turned for about 90 about its longitudinal axis, which section 11 serves as handle for operation of the opener.
  • a key for opening of cans or the like being equipped with a tearing tongue which is to be inserted into a longitudinal slot of the key, and having a thickened seam edge portion, comprising a band buckled to form two leg portions having substantially equal length and disposed slightly less than 90 relative to each other and having a buckle point therebetween,
  • one of said leg portions having a longitudinal slot and the other of said leg portions serving as a handle during rotation of the key
  • the inner side of the buckle point of said band has a profile substantially complementary to the outer contour of the cross-section of a thickened seam edge portion of the can
  • said key is releasably secured to the can self-clampingly at said buckle point between said two leg portions of said band prior to its use by placing said buckle point on said thickened seam edge portion and pressing said band onto the can, whereby said leg portions widen approximately up to a right angle and press resiliently against the side and end of the can, respectively.
  • a key for opening of cans of the like being equipped with a tearing tongue which is to be inserted into a longitudinal slot of the key, comprising a band buckled to form two leg portions having substantially equal length and disposed slightly less than 90 relative to each other and having a buckle point therebetween,
  • one of said leg portions having a longitudinal slot and the other of said leg portions serving as a handle during rotation of the key

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
US652937A 1966-07-14 1967-07-12 Key for opening of cans or the like equipped with a tearing tongue Expired - Lifetime US3439832A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL0054079 1966-07-14

Publications (1)

Publication Number Publication Date
US3439832A true US3439832A (en) 1969-04-22

Family

ID=7275895

Family Applications (1)

Application Number Title Priority Date Filing Date
US652937A Expired - Lifetime US3439832A (en) 1966-07-14 1967-07-12 Key for opening of cans or the like equipped with a tearing tongue

Country Status (4)

Country Link
US (1) US3439832A (de)
AT (1) AT289637B (de)
FR (1) FR1529113A (de)
GB (1) GB1129889A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD291022S (en) 1984-12-10 1987-07-28 Erickson Richard D Disposable shoe shine kit

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD487558S1 (en) 1999-08-13 2004-03-16 Erik Nielsen Cap opener
DK199900297U4 (da) * 1999-08-13 2000-12-08 Ik Holding Aps Kapselaftager

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1710958A (en) * 1924-12-04 1929-04-30 American Can Co Attachment of keys to cans
US3302823A (en) * 1964-11-09 1967-02-07 Murlin L Hulse Pull-tab, quick-opening container

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1710958A (en) * 1924-12-04 1929-04-30 American Can Co Attachment of keys to cans
US3302823A (en) * 1964-11-09 1967-02-07 Murlin L Hulse Pull-tab, quick-opening container

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD291022S (en) 1984-12-10 1987-07-28 Erickson Richard D Disposable shoe shine kit

Also Published As

Publication number Publication date
FR1529113A (fr) 1968-06-14
GB1129889A (en) 1968-10-09
AT289637B (de) 1971-04-26

Similar Documents

Publication Publication Date Title
US2919481A (en) Adjustable buckle
US3383769A (en) Lance matrix band clamp for dental purposes
US3892011A (en) Bundling strap with self-contained severing means
US3439832A (en) Key for opening of cans or the like equipped with a tearing tongue
US3242542A (en) Strap buckle and tightener
US3238741A (en) Ring guard and sizing device
US1951168A (en) Metal eyelet
US3404800A (en) Opening means for a container
US3604074A (en) Worm drive hose clamp
US1414731A (en) Adjustable band
US2063429A (en) Hose supporter
US2290573A (en) Buckle
US1929843A (en) Wire bale-tie
US1751926A (en) Container
US2995795A (en) Protective clip
US1235549A (en) Hand-protector for steering-wheels.
US2538938A (en) Belt buckle
US2860396A (en) Universal pocket book handle anchor and installation
US1957023A (en) Bendable clip or fastener
US1554228A (en) Handle for hand baggage
US1069044A (en) Fastener for paper bags and the like.
US2769567A (en) Can opener key and strip guide
GB1516097A (en) Dispensers for roll material
US1648017A (en) Buckle
US3232323A (en) Strapping tool