Abstract: An electric can opener comprises a motor, a controller, and a signal-detecting element monitoring at least one of (i) an audio signal and (ii) a motion-type signal during operation of the can opener. The controller determines a baseline signal value, calculates a threshold signal value and compares the monitored signal value to the calculated threshold value. The controller stops operation of the can opener if the detected signal is outside the threshold from the baseline.

Abstract: An electromotive can opener comprises a body. The body is formed by a first half and a second half. A motor, a touch switch for actuating the motor, a high twisting gear set, and a cutter handle are assembled to the body. In the high twisting gear set, a plurality of following gears and driving gear are engaged one by one and then is engaged to a driven shaft. The driven shaft is assembled with a driving gear. A knife protrudes out of a cutter handle. In operation, the knife cuts into the can and the touch switch is pressed by the cutter handle to actuate the motor and the shaft is driven. The can is driven to rotate to be cut along the periphery by the knife; and high twisting gear set formed by the plurality of gears provides a high twisting force for securing the can firmly.

Abstract: A can opener for severing a lid from a can. The can opener includes a housing having a shape generally in the form of a semi-sphere. The housing has a semispherical shell and an opposing working face. A cutting mechanism is positioned on the working face for movement along a circumference of the lid to sever the lid from the can. A drive mechanism is mounted to the housing for moving the can opener relative to the can.

Abstract: An electric can opener has a handle that is used to ‘close’ a blade towards a traction wheel so as to pinch a top rim of a can while the lid is removed, in a known manner. When the handle is moved downwards, the blade is carefully controlled in its movement as the result of the cooperation of three cams mounted on a pivot shaft of the handle. The blade is moved sideways and downwards so as to arrive at the pinching position in a manner that ensures that the rim is not jammed from above and that vertical thrust is applied during the can opening operation.

Abstract: A hand held battery operated can opener comprising a housing; a drive located in the housing and having a can contacting drive wheel; a rechargeable battery connected to the drive; and a movable section movably connected to the housing. The movable section comprises a cutting blade. The housing is sized and shaped to be grasped by a single hand of a user in a grasping position. The grasping position comprises a back of the housing being matingly received in a palm of the hand and fingers of the hand being located at left and bottom sides of the housing and, while the user is grasping the housing in the grasping position, at least one finger of the hand can articulate to move the movable section.

Abstract: An electric can opener has a handle that is used to ‘close’ a blade towards a transaction wheel so as to pinch a top rim of a can while the lid is removed, in a known manner. When the handle is moved downwards, the blade is carefully controlled in its movement as the result of the cooperation of three cams mounted on a pivot shaft of the handle. The blade is moved sideways and downwards so as to arrive at the pinching position in a manner that ensures that the rim is not jammed from above and that vertical thrust is applied during the can opening operation.

Abstract: A household electric can opener operable by vertical movements of a control button. The can opener has an easily removable assembly that includes all of the exposed operating parts, including a cutting blade, a can drive wheel, the control button, and a lid magnet assembly. The entire removable cutter assembly is water immersible or machine washable for improved sanitation.

Abstract: This invention is directed to a can opener appliance with a side cutting mechanism. The can opener appliance includes housing portions, which include a cutter support mounted therein. A cutter wheel is mounted at least partially within the cutter support and has a cutting edge for severing a can wall. A traction wheel is also positioned inside the housing portions of the can opener appliance. The traction wheel has a gripping surface to engage the can. The cutter wheel and the traction wheel are rotatable and the axes of rotation of the wheels are substantially perpendicular to each other. The wheels are positioned adjacent and spaced apart from each other to define a gap to accept a can to be opened. One of the wheels is moveable towards the other to engage and lock the can between the wheels. The cutter wheel then acts to sever the can wall and the traction wheel acts to move the can past the cutter wheel The cutter wheel is formed of a drawn tool steel with a Rockwell C hardness from about 53 to about 57.

Abstract: A can opener (30) includes a housing (32) which supports a drive wheel (64) for rotating a can (82) loaded on the opener. While the can (82) is being rotated by the drive wheel (64), a cutter (74) is severing a lid (80) of the can therefrom. An actuator (86) is pivotally mounted at the rear of the housing (32) and extends across the top, and over the front, of the can opener (30) to provide the external control for operating the can opener. A switching mechanism (136) and a disc (184) are located within the housing (32) and are responsive to movement of the actuator (86) by a user to operate the can opener (30). A magnet assembly (98) is removably located on the underside of the actuator (86) for attaching magnetically to the lid (80) of the can (82) during a lid-cutting operation to facilitate removal of the lid from the can after completion of the lid-cutting operation. A blade sharpener (42) is located at the rear of the housing (32).

Abstract: A can opener of the type in which the can is opened by cutting through an outer part of the rim joining the lid with the main body of the can. Cam means (51) are arranged to engage outside wall of the can immediately beneath the rim, the engagement underneath the rim moving the cam means and cutter wheel (40) against resilient means (54) to a position such that the cutter wheel makes its cut at a substantially constant predetermined distance on the rim. The drive wheel can have an outer cylindrical surface which is toothed and its lower edge bevelled or chamfered.

Abstract: A can opener comprising an electric motor (2) driving in rotation a shaft (4) carrying a roller (7), as well as a cutting blade (9), the shaft being mounted both rotatably and axially movably by a bidirectional drive mechanism comprising a compression spring (14) and a device for reversing the direction of rotation of the shaft comprising two electrical switches, a start switch (16) and a stop switch (17), which are mounted in the supply circuit of the motor. The spring (14) comprises two portions, a cylindrical portion (19) with touching turns and a truncated conical portion (21) whose turns do not touch and of which a free end (22) is adapted to come, either into abutment against a finger (23) provided on a wall (6) of the casing (1), or to bear against the stop switch (17), so as to cut the feed to the motor.

Abstract: The electrically driven can opener is composed of a housing (1) accommodating a drive mechanism, a drivable drive wheel (2) which is located on the outside of a housing wall (3), a cutter (8) rotatably supported on the housing wall (3) at a distance from the drive wheel (2) and an operating member (22) to be operated by hand and mounted on the housing (1), which latter member serves to swivel the cutter (8) from a clamp-on position into a cutting position and to switch on the drive motor by means of a switch (38). The operating member (22) and the cutter (8) are interconnected by a spring-elastic element (19).

Abstract: The invention discloses a can opener having a driving wheel (4) which is adapted to be driven by a drive unit, is rotatably mounted on a housing (1) and which, for the purpose of propelling a can (24), engages from outside under the seam (6) at the point of engagement (29). Above the lid (10), a cutter (3) is mounted on the housing on a pivot shaft (13) at a predetermined distance from the driving wheel (4), the cutter being movable from an initial position (20) into a cutting position (28) and having a piercing tip (17) and an adjoining cutting edge (8) with a cutting area (9) which is in engagement with the lid (10) when in the cutting position (28). To guide the can (24), a first abutment stop (7) is provided on the housing (1), being secured to the can opener rearwardly of the point of engagement (29) when viewed in the direction of movement ( 12) of the can (24).

Abstract: An electric can opener operable in one hand of a user includes a body, a rotatable can driving wheel mounted on the front surface of the body, a cutter similarly mounted on the body, an electric motor accommodated inside the body to actuate the can driving wheel, a hollow cylindrical grip portion projecting from the body, and a power source unit contained in the grip portion to feed the electric motor.

Abstract: A portable drum opener tracks around a cover rim of a drum while cutting through an outer lip of the cover rim. It includes a rotatably driven drive wheel for engaging a radially inward facing surface of the cover rim for advancing the opener around the drum. A shaft that is movable toward and away from the outer lip of the cover rim carries a cutter wheel for pressing against and cutting through the outer lip in a region opposite the drive wheel. A pair of guide wheels are mounted for rolling against the outer lip of the cover on opposite sides of the drive wheel to support the opener during cutting, and a spring biased bracket urges the guide rollers against the outer lip of the cover. A lost motion coupling between the movable shaft and the guide roller bracket lets the guide rollers press independently against the drum rim during the cut but retracts the guide rollers away from the cutter rim when the cutter is retracted at the end of a cut.

Abstract: A motor driven can opener includes a pivotal hand lever assembly which may be removed from the can opener frame. A latch on the frame engages an edge portion of the hand lever to retain the lever on the frame throughout its normal operating range. A plate on which a can cutting element is carried is mounted to slide on the forward surface of the lever. A tab projects from the plate and catches on a hardened steel pin of the frame to hold the hand lever against the actuator of a rotary switch which maintains the motor in its energized condition during shearing of a can lid. When the can shearing is completed, the tab releases from the pin to automatically deenergize the motor.A manual crank may be employed as an alternative to electrical power. The motor is removed from the drive train when the crank is employed and brought back into the drive train when the crank is removed.