Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7409768 | Can opener Can opener includes frame; rotating, toothed wheel cutting blade; and counterpoised drive wheel. A first, perforating relationship can provide the lid of a can with perforations about its outer boundary for draining liquids; and a second, lid boundary-releasing rela... | 08/12/2008 |
| 6851195 | Can opener A can opener includes a body with a handle, a traction wheel rotatably mounted on the body, an operating element for turning the traction wheel, and a cutter. The cutter is moveable between an inoperative position for receiving a rim of a can between the traction wh... | 02/08/2005 |
| 6845562 | Can Opener A can opener for opening cans of various sizes having an operating handle, which when rotated in a first direction functions to bring a sharpened cutting wheel of the can opener from an elevated position into piercing engagement with the top of the can with the butt... | 01/25/2005 |
| 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 |
| 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 |
| 6182368 | Can opener A can opener includes an elongate body, a lever hinged to the body for relative pivotal movement about a horizontal axis between open and closed positions, and a turning knob at a front end of the body. The can opener includes a traction wheel supported f... | 02/06/2001 |
| 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 |
| 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 |
| 5787592 | Can opener An improved can opener includes a disk-like cutter having an inwardly furled rim at a lower edge thereof and pivotally connected to a press lever at a slightly slanting angle, the press lever being pivotally connected via a pivot pin to a handle having a ... | 08/04/1998 |
| 5758426 | Rotary can opening cutter A rotary can opening cutter provides a method of opening a can in order to reduce the possibility of spillage, facilitate consistent paint mixing and colorant addition, and provide re-sealing and subsequent mixing by shaking. After cutting, the "slug" is ... | 06/02/1998 |
| 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 |
| 5430945 | Manually pivotable magnetic unit on a can opener for holding and releasing the cut lid of a can The invention is a unit that is attachable to a side face of a handle of a can opener, which unit is manually operable to engage a magnet upon the lid of a can so as to magnetically hold the lid from dropping into the contents of the can as it is cut away... | 07/11/1995 |
| 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 |
| 5347720 | Can opener The invention relates to a can opener which removes the lid (E) of a can by cutting through an outer part of the rim (R) of the lid. The can opener comprises two body portions arranged for relative pivotal movement about an axis, one portion carrying a ro... | 09/20/1994 |
| 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 |
| 5197197 | Hand-held squeeze lever or pincer-type can opener To facilitate manufacture and eliminate the possibility of sharp corners projecting from metallic elements of a can opener, a bearing bushing (21) for a feed wheel shaft (20), to which a serrated feed wheel (15) and a twist knob (16) are connected, the ha... | 03/30/1993 |
| 5181322 | Can openers 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 undern... | 01/26/1993 |
| 4831735 | Adjustment height can opener An electrically operated portable can opener being adjustable in height to enable opening various size cans, the can opener having a primary housing which is partially received within a secondary base housing with a rotary cam serving to control the raisi... | 05/23/1989 |
| 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 |
| 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 |
| 4734986 | Can-openers A tool which operates to remove the end wall (17) of a can by cutting through an outer part of the rim (11) of the can comprises a manually rotatable drive wheel (8) and a cutter wheel (12) arranged tightly to grip a cam rim therebetween. The cutter wheel... | 04/05/1988 |
| 4574482 | Tin opener A tin opener mainly comprising a housing (1), a drive shaft (2) rotatably arranged in the housing (1) for a transport wheel (3) located outside the housing (1), a body (7) rotatably arranged about a second shaft (A--A) parallel to the driving shaft in the... | 03/11/1986 |
| 4567655 | Tool for opening smokeless tobacco containers A lightweight, hand-held portable tool for opening a smokeless tobacco container uses a rotatable cutting wheel to slit an adhesive coated paper wrapper extending around the rim of the lid and cylindrical body of the container. The tool has a top member w... | 02/04/1986 |
| 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 |
| 4520567 | Power pierce can opener An electric powered can opener has a housing, a feed gear that is motor connected and rotatably mounted to drive and rotate a can by holding it by its rim. An operating lever is pivoted above the gear on the housing and carries a cutter mechanism to remov... | 06/04/1985 |
| 4053981 | Power operated can opener having automatic shutoff means, a removable hand lever assembly, and a manual crank 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... | 10/18/1977 |
| 4050155 | Can opener gun A portable can opener tool shaped as a gun, with an elongated trigger pivoted to a butt handle. Pulling of the trigger to the butt of the handle serves to rotate a can past the blade of the tool so as to cut the top of the can away from the can rim. The t... | 09/27/1977 |
