Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7222830 | Right angle bracket A bracket for securing an elongated support member elevated against a wall or adjacent a ceiling for attachment of a window or wall covering, is described. The bracket comprises a single flat metal piece bent to form a top horizontal flange and an integrally formed ... | 05/29/2007 |
| 7033122 | Fastener having improved penetration capability A metal piercing fastener having an elongated flat body having first and second surfaces with a heat at one end and a piercing point at the other. The thickness dimension of the flat body is greater proximate the head proximate the point. The first and second surfac... | 04/25/2006 |
| 6893197 | Caged nut assembly with reinforcing protrusions A cage is adapted to hold the nut. The cage is formed from a sheet of material into top, bottom, and side walls. A protrusion extends between adjacent walls and is formed from repositioned material and/or an expanded portion of the sheet of material. The protrusion ... | 05/17/2005 |
| 6866458 | Drywall fastener with improved driving head A fastener for securing a drywall work piece to a metal substrate. The fastener includes an elongated flat body carrying a securing member and having a driving head disposed at a substantially right angle to the elongated flat body. The driving head defines a bore t... | 03/15/2005 |
| 6126372 | Article-fixing device and method for removing the article-fixing device According to the present invention, it is possible to produce an article-fixing device at low cost and in large quantity and also to drive a pin unit in accurate and assured manner, and to firmly mount an object to be fixed. The article-fixing device comp... | 10/03/2000 |
| 5971649 | Ring binder mechanism A ring binder mechanism adapted to be secured to a cover is disclosed as including a substantially rigid upper curved housing supporting a pair of plates to which three pairs of half-ring members are mounted, and a pair of rivets for engagement with the c... | 10/26/1999 |
| 5234279 | Connector plates, connector plate joints and connector plate structures A connector plate is provided which includes a plurality of connecting prongs which are, in use, pressed into wooden members to form a joint and which include at least one row of edge prongs that is folded down from the edge of the plate and that extends ... | 08/10/1993 |
| 5163798 | Base sheet fastener-plate assembly A fastener-plate assembly for use in anchoring covering sheets to a roof deck has a pre-assembled configuration. The assembled configuration is maintained by projections on an upper portion of the fastener shank. The projections engage against a received ... | 11/17/1992 |
| 4982967 | Dartboards A dartboard has bed-defining members which are held in position by prongs made from sheet material. The prongs may be formed into a U-shape and be adapted to straddle a bed-defining member or they may be made in one piece with a bed-defining member.... | 01/08/1991 |
| 4764072 | Fastening device A fastening device comprises an elongated sheet metal plate having at least one lengthwise stiffening rib, a pointed end, the tip of which is preferably inclined to the general plane of the device, and, preferably, a depth stop so that when the pointed en... | 08/16/1988 |
| 4730971 | Spike plate for joining two or more separate parts The present device is a dog nail comprised of a planar or angled body with a shock absorbent ridging about its periphery. Attached to and perpendicular of one end of the body is a concave spike which is V-shaped in lengthwise cross section. The body also ... | 03/15/1988 |
| 4527933 | Spike plate and method and device for manufacturing it A spike plate which is used mainly in joining wooden parts and which is made by punching from a strip of steel sheet a set of projecting spikes. The joining capacity of the spike plate is improved by making on the broad surface of the spikes toothing or r... | 07/09/1985 |
