Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 7437825 | Mechanism for can opener A mechanism is provided for use in a can opener comprising a body; rotationally mounting to the body about a first axis a drive wheel for engaging the rim of a can; rotationally mounting to the body about a second axis and drivably rotatable by the drive wheel, a cu... | 10/21/2008 |
| 7353607 | Can opener A can opener (100) has two pivotal handles (110 and 120), a traction wheel (200) and a cutter blade (300) movable by respective handles (110 and 120) for cutting open a can, and a pivotable lever (400). There i... | 04/08/2008 |
| 7121009 | Can opener The can opener is a side-cutting opener with handle levers which pivot vertically towards and away from one another. A rotary cutter wheel is normally retracted to a position inside one of said handle levers, but is thrust outwardly to cut into the rim of the can wh... | 10/17/2006 |
| 6940589 | Optical measurement apparatus and method for optical measurement An optical measurement apparatus 10 primarily includes: a photon detection unit 12 for detecting incident photons, a time signal output unit 14 for outputting a time signal, and a storage unit 16 for storing the time signal outputted from... | 09/06/2005 |
| 6935826 | Can end and method for fixing the same to a can body A can end includes a peripheral cover hook a chuck wall dependent from the interior of the cover hook, an outwardly concave annular reinforcing bead extending radially inwards from the chuck wall, and a central panel supported by an inner portion of the reinforcing ... | 08/30/2005 |
| 6829832 | Single-handle can opener A can opener has a shaft for effecting rotation of a traction wheel for moving a can relative to a cutting wheel to sever an upper annular lateral side of the can, and is equipped with an adjustment element, which is screwed onto a threaded outward end portion of th... | 12/14/2004 |
| 6691419 | Can opener with two pivotally connected levers in laid down position A can opener includes a first lever, and a second lever pivotally connected to the first lever. The levers are in laid down position when a cutting wheel of the can opener is cutting a can. The first lever is equipped with a first wheel having domed protr... | 02/17/2004 |
| 6675487 | Can opener A manually operable can opener includes elongate first and second operating elements pivotally connected to each other intermediate their ends and having first and second handle members respectively. The can opener has a traction wheel rotatably mounted o... | 01/13/2004 |
| 6671970 | Can lid lifter for can opener This invention relates to a novel can lid lifter for a hand operated can opener. More particularly, the invention is directed to a novel can lid lifter for a hand operated can opener that cuts the outer seam wall of a can, rather than the top interior lid... | 01/06/2004 |
| 6647631 | Can opener A can opener includes a pair of handles, a traction wheel, and a cutter blade for removing a lid of a can. An operating knob is supported at one side of the can opener and rotates about an axis transverse to a central axis of a can being opened. The knob ... | 11/18/2003 |
| 6477775 | Device and methods for opening closed containers A device for opening a sealed container, the device comprising, a first arm having a proximal and distal end, a second arm having a proximal and distal end, a cutting device, and at least one guiding device, wherein the guiding device is disposed on one o... | 11/12/2002 |
| 6374502 | Hand-held can opener A hand-held can opener having a grip handle, a grip block pivotally mounted to the forward end of the grip handle, a scissors handle pivotally mounted to the grip block, and having a unique improved one way clutching assembly. The clutching assembly emplo... | 04/23/2002 |
| 6189221 | Can opener appliance having a side-cutting mechanism 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 ... | 02/20/2001 |
| 6158130 | Industrial can opener A heavy duty industrial can opener operated by hand or by motor which accommodates various sizes of cans and cuts the outer seam wall of a can rather than the top lip of the can. The can opener includes a cutting wheel with a cutting edge and a traction w... | 12/12/2000 |
| 6148527 | Can opener A can opener has two relatively pivotable body portions (1,2), one carrying a rotary cutting wheel (8) and the other a rotary traction wheel (12) having parallel axes, the opener being arranged to receive the rim (R) of a can (C) between the two wheels an... | 11/21/2000 |
| 6108917 | HACCP can opener Disclosed is a safe and reliable method and apparatus for opening cylindrical metallic containers which cuts into the side of the cylindrical body of the can below the upper annular rim. The device of the present invention employs a specially adapted, ang... | 08/29/2000 |
| 6101727 | Hand pump-action can opener A dual-handle pump-action can opener that can be operated by either hand and cuts the exterior wall of the seam of a can, rather than the top lip of the can. The dual-handle pump-action can opener includes: (a) a housing having a first handle; (b) a cutti... | 08/15/2000 |
| 6094828 | Outer seam wall can opener An improved outer wall can opener includes a retractable and extendable traction wheel which selectively grips a can to be opened between it and an outer seam wall cutting wheel. The cutting wheel is a ring which is supported by a generally cylindrical st... | 08/01/2000 |
| 5946811 | Side cutting can opener with a double grip A side cutting can opener with a double grip includes an upper and a lower grip. When the two grips are closed, a cutter and a pull wheel can clamp a lip of a can and cut an outer edge of the lip off with the cutter rotated by a rotatable grip. The upper ... | 09/07/1999 |
| 5802725 | Portable metal drum opening apparatus Portable metal drum openers allow the use of a cutting head with a relatively small diameter so that most metal drum covers can be removed without having to beat down or remove bungs in the cover. The cutting head is spring mounted so that the small diame... | 09/08/1998 |
| 5794353 | Can opener A can opener has a lower seat, an upper seat disposed on the lower seat, a swivel button disposed on the upper seat, a swivel wing disposed on the upper seat, and a slide block disposed between the lower seat and the upper seat. The lower seat has a slide... | 08/18/1998 |
| 5692309 | Can opener A can opener has two relatively pivotable body portions, one carrying a rotary cutting wheel and the other a rotary traction wheel having parallel axes, the opener being arranged to receive the rim of a can between the two wheels and to orbit the can as t... | 12/02/1997 |
| 5651183 | Portable fiber drum chime remover A portable fiber drum chime remover allows the disassembly of fiber or paperboard drums on location. The height of the cutting head is adjustable so that the portable chime remover can remove both the upper metal chime and the lower metal chime during the... | 07/29/1997 |
| 5367776 | Can opener A can opener comprising a housing having a handle. A cutting wheel having a cutting edge for severing a can wall is mounted in the housing. There is a traction wheel having a gripping surface to engage the can. The traction wheel are rotatable and the axi... | 11/29/1994 |
| 5313708 | Can opener A can opener of the type having a housing, a motor, a feed wheel for rotating a can about its axis, a gear assembly connecting the motor and the feed wheel, and a cutter for severing a can lid from a can includes a cutter control associatively connected t... | 05/24/1994 |
| 5289638 | Safety can opener A can opener for opening cans of the type having a lid joined to the main body by a rim formed of inner and outer lid surfaces folded onto the upper edge of a can wall. A toothed drive wheel rotatably mounted on a housing engages the inner surface of the ... | 03/01/1994 |
| 5228203 | High-speed tandem can opener An automatic can opener having a motor-driven cutter wheel which cooperates with two stabilizing wheels or runners for performing a can-opening or cutting operation on two cans simultaneously. The single cutting wheel is directly inline with the motor arm... | 07/20/1993 |
| 5121546 | Can opener A can opener comprising a housing having a handle. There is a cutting wheel with a cutting edge for severing a can wall, the cutting wheel defining a cutting wheel axis. There is a traction wheel having a gripping surface to engage a can, the traction whe... | 06/16/1992 |
| 4825554 | Can openers A can opener providing a circular cut around the cylindrical wall of a can below the lid and rim which are severed by the cut from the rest of the can. A pair of body members having integrally formed handles are pivoted to one another. A rotatable spindle... | 05/02/1989 |
| 4782594 | Can openers In a can opener having a traction wheel (18) for driving the end seam (26) of a can past the opener, and a cutter wheel (16) for severing the outer seaming wall of the seam, the axes (36,38) of the wheels being mutually perpendicular, the working parts ar... | 11/08/1988 |
| 4754550 | Can openers A can opener providing a circular cut around the cylindrical wall of a can below the lid and rim which are severed by the cut from the rest of the can. A pair of body members having integrally formed handles are pivoted to one another. A rotatable spindle... | 07/05/1988 |
| 4604806 | Powered drum opener with cutter wheel A drum opener for severing a metal clamping band on a drum to enable the cover to be removed from the drum. The drum includes a cylindrical metal wall having a plastic liner and the upper edge of the wall and liner are rolled outwardly along with the peri... | 08/12/1986 |
| 4563818 | Can openers A can opener providing a circular cut around the cylindrical wall of a can below the lid and rim which are severed by the cut from the rest of the can. A pair of body members having integrally formed handles are pivoted to one another. A rotatable spindle... | 01/14/1986 |
| 4251917 | Portable drum opener 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 d... | 02/24/1981 |