The first commercial microwave oven was nearly 6 feet tall and weighed in at 750 pounds.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8104188 | Suspended-ceiling grid control lines and grid components holders Devices for aiding installation of control lines in suspended ceiling systems; each comprising a flat base portion, a squared side having a paralleled horizontal groove formed therein to receive a portion of wall angle molding used with grids at 90° angles in relat... | 01/31/2012 |
| 7594336 | Line anchor An anchor for securing a line is provided that has an elongated housing with a longitudinal axis, a first end, and a second end. The housing houses an attachment member for securing the anchor to a surface and the attachment member is configured to protrude from the... | 09/29/2009 |
| 7497023 | Offset line alignment tool The present invention provides a durable offset straight line alignment tool which includes a rigid body having graduated guide lines for stringing offset lines at a construction site. The tool may also include a flat base surface and nailing apertures for nailing t... | 03/03/2009 |
| 7370728 | Apparatus for a reclining and rectractable sling seat for use with a portable hunting tree stand A lightweight portable tree stand incorporating a detachable reclining seat which is used in an elevated position removably affixed to a tree's trunk. With the recliner tree stand installed on a tree and the user sitting in a reclined position, and upon seeing the q... | 05/13/2008 |
| 7367130 | Snap line and method A snap line for use in applying powdered material to a surface. The line comprises at least one strand of material that has been coated with water repellent material. The line may be used in conjunction with powder that has also been coated with water repellent mate... | 05/06/2008 |
| 7299558 | Line marker A line marker includes a housing having a receiving cavity and an opening communicating with the receiving cavity, a retracting unit supported within the receiving cavity of the housing, an operating cable having an inner coupling end coupling with the retracting un... | 11/27/2007 |
| 7263779 | Brick laying alignment apparatus A brick laying alignment apparatus comprising two identical holders fitted with stagger bolts and guide pins. Each holder further comprises a vee on the first end, the vee having a ramp on either side and a wedge in the base of the vee for removable string engagemen... | 09/04/2007 |
| 7137207 | Measuring arrangement to determine location of corners for a building foundation and a wooden base frame, and the use thereof An arrangement comprising a laser projection device is used in determining the location of corners in constructing a foundation of a building or other structure. The arrangement is also used in positioning wooden beams perpendicular to one another in a floor frame o... | 11/21/2006 |
| 7051446 | Construction layout and angle measurement tool A construction layout and angle measurement tool includes opposite working sides having unique indicia for establishing angles from side edges or corners of building materials. When used with a reference line, and when attached to the workpiece, the tool allows site... | 05/30/2006 |
| 7028411 | Level and chalk line marker A chalk line marker is releasably connectable to a level. When connected to the level, the chalk line marker is employed to provide chalk marks in orientations established by the level. When the chalk line marker is removed from the level, the level and chalk line m... | 04/18/2006 |
| 7000328 | Surveyor's tool A surveyor's tool to facilitate the measurement of the elevation of an invert within a manhole includes a rod with a dimensioning along its length. The tool further includes a slide moveable with respect to said rod. The slide includes a pair of opposing arms, the a... | 02/21/2006 |
| 6990741 | Door frame alignment method system A door frame aligning system having a squaring system which includes a reel and guides securable at the four corners of a door frame. A line extends from the reel about the guides in criss-cross fashion. If the door frame is square and planar, the line will lightly ... | 01/31/2006 |
| 6964111 | Folding drywall square A drywall square having a straight long arm of at least forty-eight inches. The long arm has a first end and a second end, wherein the long arm is segmented into a plurality of sections between those ends. A straight short arm intersects the long arm. A first hinged... | 11/15/2005 |
| 6964109 | String line box tool A string line box tool comprising a chalk line box and a line block integral therewith used for guiding a string line rewardly from the chalk line box through a groove in the line block in order to provide a free holding string line for carpentry or construction wor... | 11/15/2005 |
| 6964115 | Levelling rod for building construction A leveling device for leveling floor pavement layers comprises a rod (1) having a hollow (90) therethrough and a fixing flange (11) for fitting with a fixing member at a lower end, a fixing member (3) including an aperture (31) in ... | 11/15/2005 |
| 6957495 | Spring lock spring line chalk box An automatically retracting chalk line dispenser having a first and second casing elements, chalk line, reel, coil spring, and thumb-lever. The thumb-lever operates as a brake thereby allowing for either controlled retraction or an effective lock on the chalk line. | 10/25/2005 |
| 6898861 | String line tool and sheaths therefor A pointed tool and sheath combination allow for use of the tool as a string line anchor and/or as a plumb bob and provide safe storage of the tool when not in use. The preferred tool is comprised of a dart-like body having a longitudinal axial bore, and a sharpened ... | 05/31/2005 |
| 6880261 | Flexible and collapsible construction geometry tool A tool is provided for laying out precise angles in construction of structures such as a foundation. The tool includes three corners including a first corner, a second corner and a third corner. Each of the corners are spaced from each other by separate strands incl... | 04/19/2005 |
| 6829836 | Material dispensing apparatus with line level A material dispensing apparatus with line level for conveniently storing and providing access to a line level within a material dispenser. The material dispensing apparatus with line level includes a shoulder having a receiver cavity, a first catch member and a seco... | 12/14/2004 |
| 6779275 | Cotton swab line marking means A means is disclosed for marking one or more clean line on the absorbent tip of a cotton swab. The means comprises of a tool with a thin groove wherein at predetermined locations at the bottom of the thin groove, there are channels for directing ink into the thin gr... | 08/24/2004 |
| 6745485 | Chalk line device A chalk line device for marking straight lines in construction applications. The chalk line device includes a housing with a pair of separable sections and a pair of openings. Each of the sections has a sidewall, a pair of opposite ends, and a pair of side edges ext... | 06/08/2004 |
| 6622393 | Combined string line anchor and plumb bob This invention is a tool combining the function of a string line or chalk line anchor and a plumb bob. This combined tool is comprised of a dart-like body having a longitudinal axial bore. A sharpened spike is clamped within the longitudinal bore. The amo... | 09/23/2003 |
| 6581295 | Material dispensing apparatus with line level A material dispensing apparatus with line level for conveniently storing and providing access to a line level within a material dispenser. The material dispensing apparatus with line level includes a handle structure formed for removably receiving the lin... | 06/24/2003 |
| 6434843 | Dual chalk line device A dual chalk line device for marking straight lines in construction applications. The dual chalk line device includes a housing with a pair of separable sections and a pair of openings. Each of the sections has a sidewall, a pair of opposite ends, and a p... | 08/20/2002 |
| 6421926 | Stringline guide system The present invention relates to a stringline guide system for setting required vertical and horizontal distances, while laying out and preparing a road, sidewalk, driveway or similar construction surface. The system is adapted for use with string, twine,... | 07/23/2002 |
| 6360445 | String line weight A portable weight for anchoring a line or string being used as a guide for marking pavement or for other construction type activities is disclosed. The portable weight includes a base made of a top plate and a bottom plate. A plurality of spikes project f... | 03/26/2002 |
| 6212782 | Building line layout device A device for the measurement/layout of angles when using surveyor's stakes to locate reference points and erect building lines for construction of a structure. Capable of being used to determine one angle at a time for non-regular polygons, or for the sim... | 04/10/2001 |
| 6167632 | Dual chalk line device A dual chalk line device for marking straight lines in construction applications. The dual chalk line device includes a housing with a pair of separable sections and a pair of openings. Each of the sections has a sidewall, a pair of opposite ends, and a p... | 01/02/2001 |
| 6141880 | Tool for layout of rapid development antenna array A tool for laying out a pattern of a measured size and orienting the pattern with respect to an exterior point of reference is disclosed. A cord having a plurality of anchoring points spaced along its length is arrayed to form the pattern. A direction fin... | 11/07/2000 |
| 6082014 | Chalk line end A chalk line end is disclosed which includes a substantially flat base member having first and second tabs depending therefrom in order to form a substantially 90 degree angle to the base member. First and second points extend from the respective first an... | 07/04/2000 |
| 6016609 | Eze glide fish tape reel assembly A fish tape reel and reversible lead device which includes a pistol-grip configuration which is ergonomically designed for ease, safety and convenience in pushing or pulling fish tape through conduit by utilizing only one hand. The reel comprises a counte... | 01/25/2000 |
| 5937532 | Releasable hook A releasable hook for use primarily on the free-end of a line-tool line such as chalk lines, tape measures, and the like. The hook has an engaged position whereby it may be secured to the edge of a, workpiece, and a retracted position whereby it disengage... | 08/17/1999 |
| 5848476 | Manual clamping device for measuring railway track alignment and profile A manual apparatus for facilitating railway track alignment and/or track profile measurements. The tool consists of two fastening units, each having a cord positioner designed to engage the rail head and to properly place a cord for measuring, a reel for ... | 12/15/1998 |
| 5822874 | Automatically retracting chalk line marking tool A pistol-shaped automatically retracting chalk-line dispenser comprises a three-member housing enclosing two separate chambers. The upper, chalk-receiving chamber, contains a double-walled chalk-line spool and a line-guiding roller. A seal on the chalk-li... | 10/20/1998 |
| 5778546 | Construction alignment apparatus and method An adjustable batter board used in locating forms and trenches for pouring foundations and constructing walls includes an elongated tubular cross member having holes passing from a top to a bottom surface at each end of the cross member for receiving rein... | 07/14/1998 |
| 5720113 | Apparatus designed for use as both a string line anchoring device and as a plumb bob A tool is disclosed which incorporates both a stick-pin peg and an eyelet-shaped hook, either of which may be used to anchor a chalk line. The tool can also double as a plumb bob. The tool has a peg-shaped body with a longitudinal axis. The body has a tap... | 02/24/1998 |
| 5704131 | Adjustable plumb bob and line capable of automatic braking and retraction A plumb bob apparatus for locating verticals with a line capable of automatic braking and retraction comprising a substantially square hollow housing wherein a spring loaded spool, in combination with an adjustable tension and braking device, allow a plum... | 01/06/1998 |
| 5657548 | Support for measuring cord A support is disclosed for adjustably supporting a distal end of a measuring cord relative to a ground surface. The support includes a body member having a longitudinally extending slot. A first and a second pin is slidably disposed within the first and s... | 08/19/1997 |
| 5603717 | Method and apparatus for simplifying total hip arthroplasty A method and apparatus for use in surgical hip replacement procedures for ensuring that the replacement hip joint components are properly sized. A flexible measuring cable is attached to the superior eminence of the exposed acetabulum and extended inferio... | 02/18/1997 |
| 5586394 | Self-contained plumb bob and ink line marker with line capable of automatic braking and retraction A self contained plumb bob and ink line marker with a line capable of automatic braking and retracting, comprising a hollow housing wherein a line reel, in combination with an adjustable spring-loaded line retraction and braking mechanism, allows a flexib... | 12/24/1996 |