Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 8038116 | Portable and collapsible bookstand A portable and collapsible bookstand apparatus includes a pair of main panels which is connected by a 180 degree foldable device; a pair of book-holding panels which is connected with the pair of main panels respectively by respective 90 degree foldable devices; a p... | 10/18/2011 |
| 7377476 | Portable watercolor easel A lightweight, portable easel designed for use with a standard photographic tripod as a means for painting on location. The easel is equipped with an angled retaining ledge, a retractable brush holder mounted on the left and right side for easy access, a retractable... | 05/27/2008 |
| 7374144 | Folding portable easel The purpose of this invention is to provide an easel assembly reversibly transformable between a deployed position suitable for supporting at least one planar item thereon and a collapsed position suitable for transport and storage. The easel assembly includes a pai... | 05/20/2008 |
| 7301759 | Portable electronic product with a bracket A bracket assembly for a portable unit. The assembly is pivotally mounted to the back of the unit and includes a frame member secured to the pivotally mounted member. A cover assembly is releasably secured to the frame member and can be moved to various positions wi... | 11/27/2007 |
| 7299580 | Mounting structure for a display A mounting structure for a display is provided. The mounting structure includes a body used for supporting the display, a mounting portion connected pivotally to the body so that a lower end thereof is able to swing back and forth within a predetermined range, a mov... | 11/27/2007 |
| 7264216 | Tilt-back triangular supports for speaker and amplifier cabinets The present invention is a rigid or collapsible folding stand for a high fidelity amplifier or speaker. In general, the amplifier or speaker has a rear base edge placed on a two or more flexible straps. The amplifier or speaker is then tilted backward until it touch... | 09/04/2007 |
| 7258320 | Folding sheet music stand Disclosed is a folding sheet music stand that is capable of being folded into a very compact package. In the folded position, the folding sheet music stand is easily transportable and less susceptible to damage. A carrying bag can be used to transport the folded she... | 08/21/2007 |
| 7252279 | Door mounted book holder The apparatus shown generally in FIG. (1) is a holder attached to and stored at the back of a cabinet door and when deployed will support an object for viewing from the front of the closed door. ... | 08/07/2007 |
| 7240887 | Book holder A book holder for supporting and protecting an article of reading material is provided. The book holder includes a spine, a pair of cover panels, each of the cover panels is hingidly to the spine permitting the pair of cover panels to be rotated into an open positio... | 07/10/2007 |
| 7226030 | Book holder The book holder has displaceable arms and a back member that can facilitate retaining a book in an open displayed manner. The book holder can either be handheld or be placed or attached on a supporting surface. ... | 06/05/2007 |
| 7213794 | Book stand A foldable book stand for viewing written materials, music and the like or for writing upon same, the stand is further fitted with a battery powered lamp. The preferred embodiment measures about 4 inches square in folded state. The stand is fitted with articulation ... | 05/08/2007 |
| 7188818 | Portable easel and palette combination A portable easel comprises an easelback and palette box joined by two lockable hinges mounted on opposing sides, the hinges having friction washers, and having knobs extending outward from shafts of each hinge, the shafts defining a rotational axis. With knobs loose... | 03/13/2007 |
| 7178778 | Portable easel This invention is a collapsible panel assembly having a front panel, a back panel, and at least one dry erase sheet carried by said front panel. The invention can have a first position where the collapsible panel assembly is generally a triangular shape and a second... | 02/20/2007 |
| 7100884 | Device for holding sheets A device for holding individual sheets contains a circular baseplate with a weight. A U-shaped clip is integrally formed on the upper side of the baseplate and is situated in a plane running obliquely with respect to the upper side of the baseplate. Arranged within ... | 09/05/2006 |
| 7051404 | Self-locking hinge The self-locking hinge (24) includes a first plate (28) hingedly connected to a second plate (30). Fasteners (24) are provided on the plates to secure them to a member, such as a easel strut hinge (24) of picture frame back (20 | 05/30/2006 |
| 7000882 | Foldable tabletop easel A foldable tabletop easel with a pair of opposing support members rotatably connected in a vertical central joint, opposing pedestal members rotatably attached to the lower vertical portion of the outside edges of the respective support members and a positioning tab... | 02/21/2006 |
| 6951280 | Guitar case that doubles as a guitar stand An instrument case is disclosed having a case body having a top edge. A cover fits over the case body and has a top inner and outer edge. A hinge, having two axes of rotation, connects the cover to the case body. One axis is substantially coincident with the edge of... | 10/04/2005 |
| 6941616 | Pinless hinge The improved pinless hinge assembly (24) includes a first hinge plate (28) having a curled edge (28a) defining a center roll having a longitudinal axis (P) with an aperture (42) in the first hinge plate (28). A second hinge ... | 09/13/2005 |
| 6772987 | Portable easel assembly A portable easel assembly includes a paint/sketch box having a base and lid connected by a hinge assembly. The base defines a cavity for storing art supplies, and the lid is configured to support a painting surface. The base and lid are inter-connected with a slide ... | 08/10/2004 |
| 6722618 | Foldable support frame for supporting cutting machine A foldable support frame for supporting a cutting machine comprises two opposing pairs of leg frames each of which comprises a pair of first crossed legs and second crossed legs that are pivotally connected together. Where the first and second crossed legs cross, tw... | 04/20/2004 |
| 6672558 | Holding apparatus for information input devices A holding apparatus engages with an information input device, particularly a foldable keyboard, for supporting portable electronic devices such as pocket PC, Palm PC, PDA, mobile phone and the like. The holding apparatus includes a receiving dock which ha... | 01/06/2004 |
| 6666424 | Portable writing board structure A portable writing board presentation structure has a collapsible writing surface, such as a dry-erase or "white board" surface, and an integral, height-adjustable tripod stand. The writing board structure is defined by first and second injection molded p... | 12/23/2003 |
| 6308925 | Box easel A fully adjustable paint box and easel which folds into a compact, light portable box shape for carrying. The novel tripod head assembly allows the outer legs to rotate out, the middle leg to rotate down, the painting holder assembly to rotate up, and the... | 10/30/2001 |
| 6305653 | Portable tripod support for portable keyboard device A portable tripod support beneath a portable notebook computer for a seated computer user. The support comprises a platform with spider-like foldable support arms having relatively folded parallel and unfolded flat coplanar positions. Fasteners on the end... | 10/23/2001 |
| 6260812 | Arrangement in a stand, especially a music stand The present invention relates to a stand (1) which can be collapsed for transportation and storage and unfolded when in use, comprising an upper stand head (2) arranged to support sheet-like objects, in particular sheets of music, and a rod-shaped central... | 07/17/2001 |
| 6196512 | Book stand A portable book stand is adapted for attachment to the back of a pew, bench, chair or similar item, as well as free-standing use on a flat surface such as a table. The book stand may include two separate folding arms attached to the rear surface of a plat... | 03/06/2001 |
| 6145801 | Attachable and folding instrument case stand A folding instrument case stand attachable to the instrument case to support the case in an upright, tilted position. The stand is particularly adaptable for use with a stringed instrument case, for example a guitar case. The stand has spring loaded diver... | 11/14/2000 |
| 6016248 | Hand held tablet computer having external mechanisms for facilitating positioning and operation An information processing apparatus which comprises a main body in a flat, plane box shape, a flat input section provided on the front surface of the main body, a stand, provided on the rear surface of the main body, having two or more tilting positions r... | 01/18/2000 |
| 6015129 | Universal reading and writing surface support An adjustable, portable platform for supporting and holding written materials or the like in a selectable position convenient to the user is disclosed. The platform comprises a central member and a pair of laterally movable frame members disposed on each ... | 01/18/2000 |
| 5882070 | Portable easel and seat for artists A portable easel and seat for artists is foldable into a compact unit and has wheels for pushing or towing to a site. The easel comprises a box having removable wheels mounted at a rear end, and two legs pivoted at the front end of the box, the legs exten... | 03/16/1999 |
| 5788575 | Portable table top A portable auxiliary table top for adaptation to a conventional horizontal-topped desk or table. A work surface member is hinged to an elongated support member along a common edge region. A semicircular locking member is pivotally engaged to the support m... | 08/04/1998 |
| 5615856 | Book holding device and method A book-holder assembly (45) has a first-side book-support plate (1) and a second-side book-support plate (2) that are oppositely disposed at a desired angle on a plate-connecting member (3) that is attachable to a connector bracket (4) with which universa... | 04/01/1997 |
| 5607135 | Tablet stand A foldable one-piece tablet stand comprising a base section, a back rest section which can be raised and lowered into the base section, a pair of protrusions which can be raised and lowered into the base and disposed at a front part of the base section so... | 03/04/1997 |
| 5518217 | Stackable presentation board with collapsible legs and pad holder A novel presentation board has a body of molded plastic which forms a strong, hollow, lightweight unit with a projecting tray and grip on a front surface and a corresponding recesses on a rear surface so the units can be conveniently stacked. The front su... | 05/21/1996 |
| 5502907 | Innovated frame fixation structure The frame fixation structure includes frame board, front board, and leg supporter set. Frame board made of opaque material and front board made of transparent material. There are two slotting holes at symmetrical corner on the surface of front board and t... | 04/02/1996 |
| 5501423 | Portable easel with table A portable easel with tray and table composed of two legs, joined at the top by a crosspiece having in it pegs for hanging a thin, rigid easel board to serve as backing for commercially available easel pads. The legs pass through holes at their approximat... | 03/26/1996 |
| 5478040 | Portable easel A portable flipchart plastic blow molded easel having a display portion telescopically arranged on a pedestal base portion having legs pivotally secured to and foldable away from the base portion for holding the easel upright, the legs and portions having... | 12/26/1995 |
| 5377946 | Combined bed tray and book holder A bed tray (10) with supporting legs (14) and a flat bottom (12) having an insert panel (24) therein which can be positioned at an angle of inclination to thereby serve as a book stand. The insert panel is normally supported co-planar with the top (13) of... | 01/03/1995 |
| 5209492 | Shooting target stand Embodiments are shown and described, each of a shooting target stand for removable holding a target at various angles and heights relative to the ground. The target stand has a generally two-dimensional frame, with an opening across which the target is pl... | 05/11/1993 |
| 5149046 | Page turning system A device for holding reading materials for use by readers without arm mobility adapted to hold the reading materials in position for reading with the pages displayed to enable turning by use of a rubber tipped stick held in the mouth having a pair of rect... | 09/22/1992 |
