US3772777A - Can opener with removable cutter - Google Patents
Can opener with removable cutter Download PDFInfo
- Publication number
- US3772777A US3772777A US00168058A US3772777DA US3772777A US 3772777 A US3772777 A US 3772777A US 00168058 A US00168058 A US 00168058A US 3772777D A US3772777D A US 3772777DA US 3772777 A US3772777 A US 3772777A
- Authority
- US
- United States
- Prior art keywords
- lever
- housing
- shaft
- handle
- socket
- 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
Links
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000000994 depressogenic effect Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 1
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
- B67B7/38—Power-operated cutting devices
Definitions
- This invention relates to, and an object of the invention is to provide, a can opener having improved means of removably supporting a cutter wheel and its operating handle.
- the operating handle is pivoted about a shaft or pin carried in a socket on the frame, and the handle carries the cutter for penetration of the can top and also actuates the motor powering the drive wheel.
- the inward shaft end extends beyond the socket and a lever pivoted intermediate its ends has one end provided with an arcuate slotted opening to line up over the socket and hold or release the shaft end and has the opposite end projecting exteriorly of the frame to be manually actuated to release or set the handle relative to the unit.
- the arcuate opening is enlarged to freely receive the shaft end while in the opposite set or securing rotatable position of the lever the adjacent part of the arcuate opening is narrower and fits behind a locking head on the shaft.
- Cam means are provided between the frame and lever on opposite sides symetrically of the shaft operable with tlie lever in the release position to locate the lever against the frame to receive or release the shaft and operable upon lever rotation to the set position to draw the trapped shaft axially of the socket for firming the handle and the cutter thereon snuggly against the frame.
- a spring is coiled around the lever pivot pin to urge the lever to its handle securing position.
- the disclosed lock and release mechanism for releasably securing the operating handle and cutter carried thereon relative to the can opener frame consists of few moving parts and can be economically fabricated and easily assembled.
- FIG. 1 is a front elevational view of the subject can opener shown with its frame or housing partially broken away for clarity of disclosure;
- FIG. 2 is a top plan view of the unit, except with the operating handle shown removed;
- FIG. 3 is a sectional view taken generally from line 3 3 in FIG. 1, and showing the unit operating inopening a can;
- FIG. 4 is an elevational view of the latch mechanism as seen from line 4--4 in FIG. 3;
- FIGS. 5 and 6 are sectional view as taken from line 5 5 and line 6 6, respectively in FIG. 4.
- a housing or casing 10 as shown has a front plate 12 and a box like rear portion 14 which are held together by bolts 15 threaded into taps on the front plate.
- a motor 16 is mounted from the front plate within the defined housing enclosure, and a drive wheel 18 keyed to a shaft rotated in bearing 20 through the front casing 12 is connected by a conventional gear train 22 in driven relation with motor pinion 24.
- the drive wheel 18 engages the underside of a can chime for supporting and rotating the can.
- An operating handle 26 is pivoted at shaft 28'within a socket 30 through the front plate 12 and carries thereon cutter 32 as shown as a disc freely rotated on inclined shaft 34.
- the cutter can be brought down against and be pushed through the can top opposite the drive wheel upon a clockwise rotation of the handle relative to FIG. 1.
- a control switch for operating the motor 16 is mounted within the housing enclosure from front plate 12 as exposed plunger 42 being depressed to power drive wheel 18 when the operating handle 26 is pivoted downwardly its fullest extent incidental to the cutter 32 opposing the drive wheel.
- a magnet 44 carried on the handle adjacent the cutter 32 is adapted to hold the severed can top as is,well known.
- the particular invention relates to means for removably securing the handle 26 and the cutter 32 thereon relative to the socket 30 of the casing 10 an rotating drive wheel 18.
- the handle shaft 28 extends completely through the socket 30 and had an inboard protruding end with an exposed annular cut or groove 46 formed therein.
- a lock-release element or lever 50 mounted for rotation about shouldered bolt 52 threaded into a tap in the front plate 12 presents an inner end 54 which overlies the socket 30 and an outer end 56 which extends through an opening 58 in the casing 10 to be accessable for manual manipulation.
- an opening 60 is formed located circumferentially of pivot pin 54 and aligned over the socket 30.
- One end 62 of the opening 60 is enlarged sufficiently to receive without interference the protruding end of the handle pivot shaft 28.
- the handle shaft 28 can be inserted into or removed from the socket.
- the opening width otherwise is only slightly larger than the groove 46 and is smaller than the handle shaft diameter such that the lock release element 50 effectively traps the handle shaft and holds it relative to the support socket 30 although the shaft can still be rotated.
- a coil spring 66 on the pivot pin 54 is confined under compression between element 50 and bolt head 68 to maintain the element snuggly against the front plate 12. Also, by trapping extended spring end 70 behind lock element lug 71 and extended spring end 72 behind front plate lug 73, the spring under torsion rotatably biases the element to its securing position where the narrowed opening 60 lines up with the socket 30.
- the lock element has cams 74 located on opposite sides of the pivot pin 54, and the adjacent face of the front plate 12 has relief areas 75 which receive the cam configurations 74 when the lock element 50 is in the release position (shown in phantom in FIG. 4).
- the element then is supported flush against front plate rib 77 extended circularly of the bolt tap closely adjacent the front of the unit where the element lines up with the shaft groove 46 when the shaft is fully inserted into the socket.
- the relief areas 75 are located so that when the element 50 is pivoted to its securing position the cams 74 ride out of the relief areas 75 and wedge the element rearwardly away from the front plate.
- This lateral shifting of the element also shifts the handle shaft 28 as it has been trapped by the lock-release element axially of the socket and thereby draws the handle firmly against the socket 30.
- This snugging action on the handle shaft occurs automatically as the element 50 is rotated to its securing position and helps align the cutter 32 laterally of the drive wheel 18.
- a can opener a housing, a rotary drive wheel, means for rotating said drive wheel relative to the housing, an operating handle, means pivoting the handle from the housing, a cutting element carried on the handle whereby rotation of said handle swings said cutting element toward and away from said drive wheel
- said handle pivoting means including a bearing socket in the housing and a shaft cantilevered from the handle and said socket receiving said shaft and the end of the shaft projecting beyond the socket to within the housing, a lever, means pivoting the lever from the housing so that one lever portion is accessable outside of the housing to allow manual rotation of the lever between a securing position and a release position and another lever portion overlies and is moved transversely of the socket during said lever rotation, means cooperating between the handle shaft end and lever operable in the release position of the lever to permit unrestricted axial movement of the shaft and operable in the securing position of the lever to prevent axial removal of said shaft from the socket while still permitting shaft rotation, cam means between the lever and housing operable in the securing position
- a housing In a can opener, a housing, a rotary drive wheel,
- an operating handle means pivoting the handle from the housing, a cutting element carried on the handle whereby rotation of said handle swings said cutting element toward and away from said drive wheel
- said handle pivoting means including a bearing socket in the housing and a shaft cantilevered from the handle and said socket receiving said shaft and the end of the shaft projecting beyond the socket to within the housing, a lever, means pivoting the lever from the housing so that one lever portion is accessable outside of the housing to allow manual rotation of the lever between a securing position and a release position and another lever portion overlies and is moved transversely ofthe socket during said lever rotation, means cooperating between said handle shaft end and lever operable in the release position of the lever to permit unrestricted axial movement of the shaft and operable in the securing position of the lever to prevent axial removal of said shaft from the socket while still permitting shaft rotation, cam means between the lever and housing operable in the securing position to shift said lever and the axially confined shaft snuggly relative to the housing for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Opening Bottles Or Cans (AREA)
Abstract
Description
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16805871A | 1971-08-02 | 1971-08-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3772777A true US3772777A (en) | 1973-11-20 |
Family
ID=22609927
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00168058A Expired - Lifetime US3772777A (en) | 1971-08-02 | 1971-08-02 | Can opener with removable cutter |
Country Status (1)
Country | Link |
---|---|
US (1) | US3772777A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3818589A (en) * | 1972-11-06 | 1974-06-25 | Burgess Vibrocrafters | Can opener with removable cutter assembly |
US3911571A (en) * | 1974-08-23 | 1975-10-14 | Sunbeam Corp | Can opener |
US6279236B1 (en) | 1998-04-01 | 2001-08-28 | Hamilton Beach | Can opener |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2810952A (en) * | 1956-03-16 | 1957-10-29 | Frank J Curran | Power driven can opener |
US3496635A (en) * | 1968-02-21 | 1970-02-24 | Rival Manufacturing Co | Removable hand lever and wear compensating can opener construction |
US3673682A (en) * | 1969-04-23 | 1972-07-04 | Aichi Electric Mfg | Can opener device |
US3688398A (en) * | 1970-02-19 | 1972-09-05 | Rival Manufacturing Co | Can opener with cutting element carrying hand lever and push button operated mechanism for removing same |
-
1971
- 1971-08-02 US US00168058A patent/US3772777A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2810952A (en) * | 1956-03-16 | 1957-10-29 | Frank J Curran | Power driven can opener |
US3496635A (en) * | 1968-02-21 | 1970-02-24 | Rival Manufacturing Co | Removable hand lever and wear compensating can opener construction |
US3673682A (en) * | 1969-04-23 | 1972-07-04 | Aichi Electric Mfg | Can opener device |
US3688398A (en) * | 1970-02-19 | 1972-09-05 | Rival Manufacturing Co | Can opener with cutting element carrying hand lever and push button operated mechanism for removing same |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3818589A (en) * | 1972-11-06 | 1974-06-25 | Burgess Vibrocrafters | Can opener with removable cutter assembly |
US3911571A (en) * | 1974-08-23 | 1975-10-14 | Sunbeam Corp | Can opener |
US6279236B1 (en) | 1998-04-01 | 2001-08-28 | Hamilton Beach | Can opener |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CONTINENTAL ILLINOIS NATIONAL BANK AND TRUST COMPA Free format text: SECURITY INTEREST;ASSIGNOR:TOASTMASTER INC.;REEL/FRAME:004034/0599 Effective date: 19820818 |
|
AS | Assignment |
Owner name: BARCLAYS BUSINESS CREDIT, INC., A CORP OF CT, ILLI Free format text: SECURITY INTEREST;ASSIGNOR:TOASTMASTER INC., A CORP OF DE;REEL/FRAME:005328/0225 Effective date: 19900418 |
|
AS | Assignment |
Owner name: BARCLAYS BUSINESS CREDIT, INC., WISCONSIN Free format text: AMENDMENT TO COLLATERAL ASSIGNMENT & SECURITY AGREEMENT;ASSIGNOR:TOASTMASTER INC.;REEL/FRAME:006773/0509 Effective date: 19931119 |
|
AS | Assignment |
Owner name: BARCLAYS BUSINESS CREDIT, INC., WISCONSIN Free format text: SECURITY INTEREST;ASSIGNOR:TOASTMASTER INC.;REEL/FRAME:006950/0294 Effective date: 19940307 |
|
AS | Assignment |
Owner name: SHAWMUT CAPITAL CORPORATION, WISCONSIN Free format text: ASSIGNMENT & ASSUMPTION;ASSIGNOR:BARCLAYS BUSINESS CREDIT, INC.;REEL/FRAME:007434/0161 Effective date: 19950131 |
|
AS | Assignment |
Owner name: SHAWMUT CAPITAL CORPORATION, WISCONSIN Free format text: THIRD AMENDMENT TO PATENT COLLATERAL ASSIGNMENT & SECURITY AGREEMENT;ASSIGNOR:TOASTMASTER INC.;REEL/FRAME:007603/0271 Effective date: 19950718 |
|
AS | Assignment |
Owner name: WELLS FARGO FOOTHILL, INC., MASSACHUSETTS Free format text: SECURITY AGREEMENT;ASSIGNORS:SALTON, INC.;TOASTMASTER INC.;SALTON TOASTMASTER LOGISTICS LLC;AND OTHERS;REEL/FRAME:016345/0348 Effective date: 20050630 |