"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 7334824 | Door lever lock A child safety lock for a lever door handle is rotatably mounted on a first side of a door and is biased in a first position. The child safety lock has a holder adapted to engage the door handle so that rotating the door handle rotates the holder. A cover is pivotal... | 02/26/2008 |
| 7213850 | Door knob holder A door stop is attached to a wall at the same height as a doorknob. When the door is swung into an open position, the door stop is lifted. The doorknob passes under the door stop, which is then dropped so that it rests on the axel connecting the doorknob to the door... | 05/08/2007 |
| 7143614 | Computer physical security device An apparatus which inhibits the theft of equipment such as personal computers is disclosed. The equipment must have an external wall provided with a specially designed, approximately rectangular slot having preselected dimensions. An attachment mechanism includes a ... | 12/05/2006 |
| 7121370 | Latch A snowmobile includes a pivotally mounted motor cover that moves between open and closed positions relative to the snowmobile's frame. A latch fastener selectively secures the motor cover in its closed position. The latch fastener includes a pin that is rigidly moun... | 10/17/2006 |
| 7086351 | Tube gate latch A tube gate latch is provided including a latch arm, a sleeve attached to one end of said arm, wherein said sleeve is adapted to receiving a bolt through said sleeve, and a tube grip attached to a second end of said arm, wherein the grip is āUā shaped and rests ... | 08/08/2006 |
| 7017958 | Gate latch A latching and locking mechanism for fence gates or doors. The gate latch of this invention is comprised of a steel locking pin that slides through the latch device. When the locking pin slides out of the latch device, the gate can easily be opened or closed. When t... | 03/28/2006 |
| 7000955 | Portable casement window securing device A compact, portable device for effectively locking a crank window in a user selected position. The body of the device can be selectively secured to or released from a window crank. When secured to the window crank, the device limits rotation of the crank by mechanic... | 02/21/2006 |
| 6398272 | Flexible draw latch A flexible draw latch for use in securing two closure members together, including a keeper adapted to be affixed to one of the closure members, a mounting bracket adapted to be affixed to the other closure member, a flexible arm pivotally connected to the... | 06/04/2002 |
| 5908213 | Elastic door locking device A removable door locking device having a strong, flexible, resilient, elastic loop capable of absorbing instantaneous force applied to the door. One end of the loop fits tightly around the door knob and the other end of the loop has multiple attachment po... | 06/01/1999 |
| 5876075 | Portable wire gate closer A portable apparatus for closing wire gates includes an inner U-shaped ring that is pivotally attached at each end of the inner U-shaped ring to a U-shaped handle at each of two open ends thereof. A first length of chain is attached near to one of the two... | 03/02/1999 |
| 5716084 | Door security system A multi-position door security system that provides a primary locked position keeping a closed door secure and also providing varying degrees of secure openings to allow a user to see outside or accept envelopes and packages through an opening. The invent... | 02/10/1998 |
| 5709422 | Security device for double doors A security device for double doors having adjacent handles which comprises a lateral bracing segment which extends across the two handles, a short depending segment connected to the lateral bracing segment by a first loop encompassing the neck of the firs... | 01/20/1998 |
| 5626375 | Gate latch mechanism A non-residential door latch comprised of a serpentine rigid bar. Mounting plates for locating the bar through a typical gate such that a downwardly curving portion of the bar is exposed on one side of the gate to form a handle while an inwardly curving p... | 05/06/1997 |
| 5466022 | Safety cable lock for knob-operated door A safety cable locking device for a knob-operated door mounted in a door frame including a framing stud. The device comprises an anchor member, a wire plastic covered cable, a lag bolt and a bushing. The anchor member contains the bushing and is fastened ... | 11/14/1995 |
| 5465595 | Dead bolt pass key lock A dead bolt operating knob is immobilized by dual sleeves mounted on a rod-like support and biased toward each other to surround opposing portions of the dead bolt operating knob. The end of the elongated support opposite the sleeve members is secured in ... | 11/14/1995 |
| 5451082 | Lock fastener A lock fastener for attachment to a bag or the like comprises a socket member and a plug member releasably engageable therewith. A slide member has resilient means for supporting the slide member resiliently movably within the socket member. The socket me... | 09/19/1995 |
| 5447344 | Electronic seal An electronic seal comprises a housing (12), a cord (14) with one end fixed to the housing (12) and a free end which can be passed through a door catch or the like and releasably connected to the housing (12), an electronic circuit within the housing (12)... | 09/05/1995 |
| 5394966 | Latch device for a case A latch device may secure a cover to a base of a case. A groove and a boss are formed in the base, and another groove and another boss are formed in the cover and aligned with the groove and the boss of the base. aperture formed in the first groove. The l... | 03/07/1995 |
| 5342103 | Striker bar assembly A striker bar assembly including a resiliently biased striker bar. The striker bar is supported by a mounting bracket and resilient biased to permit a limited degree of rotation. The resilient biasing of the striker bar allows the striker bar to deflect w... | 08/30/1994 |
| 5270011 | Plastic reaction vessel for small liquid volumes A plastic reaction vessel for small liquid volumes is provided with a lid for closure of the opening of the vessel. The lid is held in the closed position by a securing device which comprises a flexible backing tab and a securing peg.... | 12/14/1993 |
| 5237788 | Skylight guard assembly A skylight guard assembly having an arc-shaped wire mesh screen formed of longitudinal and transverse bars. A pair of receiving brackets are attached with fasteners to the frame of the skylight and the receiving brackets have a recess formed between two u... | 08/24/1993 |
| 5217264 | Two-piece lock A lock intended primarily for gliding or hinged doors or windows. The lock is an improvement over the prior art in that it is a very simple mechanism which nonetheless is secure and cannot be back-driven. The lock mechanism is made up of essentially two p... | 06/08/1993 |
| 5195791 | Portable security buckle for doors A portable security buckle. The portable security buckle has a tongue which is inserted in a recess in a jamb of a door frame, together with a lock tongue. A fastening assembly is used to retain the tongue and a door in position. Thus, the door can not be... | 03/23/1993 |
| 5147331 | Releasable locking apparatus A releasable locking apparatus for securing a closure member to a frame includes a catch plate rigidly secured to the frame, the plate defining a catch. A locking device is pivotally secured to the closure member with the locking means defining an apertur... | 09/15/1992 |
| 5139294 | Latch bearing for blow-molded case, and method and apparatus for forming same A latch member of a case or similar container blow-molded from thermoplastic material is pivotally and permanently secured to the case by a bearing formed substantially simultaneously with and from the same thermoplastic material as the body of the case. ... | 08/18/1992 |
| 5052729 | Latch for truck tailgates The rear horizontal gate or tailgate of a truck is locked in a vertical or horizontal position by a pivoting horizontal bar. Fingers extend fixedly outward from the rear of the bed of a truck. The bar hinges are slit so that in the horizontal position the... | 10/01/1991 |
| 5042856 | Automatic locking mechanism for dumpster lid The invention is directed to an automatic locking mechanism for a dumpster container having a hinged lid. The elements of the locking mechanism comprise an L-shaped or U-shaped securing member which is attached to one or both sidewalls of the container. T... | 08/27/1991 |
| 4834434 | Safety latch for a nuclear waste container A permanent locking device for a nuclear waste container which, in combination with a lid and a box, utilizes a dee-shaped ring held by a wide, flat hinge and a protruding narrow malleable metal retaining strap. The ring can rotate or slide up and down wi... | 05/30/1989 |
| 4811454 | Door holder The present invention relates to an improved door holder which includes an elastic ring which is slipped over the door knob, a flexible belt which is mounted to an adjacent wall structure and a device in the likeness of an animal or creature which interac... | 03/14/1989 |
| 4718572 | Device for half-opening the door of a box containing safety equipment, such as oxygen masks A device for half-opening the door of a box containing safety equipment such as oxygen masks, said device enabling said door to be held in a partially open position for inspection purposes without releasing the safety equipment, said device being constitu... | 01/12/1988 |
| 4653820 | Latch mechanism for furniture or the like A latch mechanism for furniture or the like including a latch actuating unit in which a latch shaft is rotatably supported by a latch mounting plate which in turn is securely attached to one side edge portion of the front plate of a drawer which can be pu... | 03/31/1987 |
| 4629229 | Door lock device A lock device for use on the doorknob of a vertically hinged door. The lock device includes a flexible cable with opposite legs connected at one end to form a loop for insertion over the doorknob and a sleeve on the loop of the cable which extends around ... | 12/16/1986 |
| 4616863 | Lock for releasably holding a hinged guard element on a window A lock for releasably holding closed a fixed structure like a house or building a hingedly mounted closing element like a window guard, gate or the like characterized by a lock bar for being locked in the closed position from a lock housing that is connec... | 10/14/1986 |
| 4486042 | Gate latch A latch apparatus for use with gates includes a latch bracket and a latch bar which removably engages and is locked to the latch bracket. The latch bracket includes a plurality of inclined slots which accept pins mounted on the latch bar and a catch membe... | 12/04/1984 |
| 4478442 | Safety lock on entrance door In one form, a safety lock for a knob operated door includes an anchor block fastened to the framing stud of door frame. A flexible steel cable loop having a pair of parallel end portions permanently mounted in the anchor block has a cylindrical shank tig... | 10/23/1984 |
| 4474167 | Latch for a butterfly damper An air/smoke/fire damper including a frame and a pair of damper blades pivoted for rotation within the frame between an open and a closed position, and comprising a heat responsive latch including mounting straps associated with each of the damper blades;... | 10/02/1984 |
| 4437783 | Device for the detection of the position of the thrust reverser of a turbojet engine Device for the detection of the position of the thrust reverser of a turbojet engine and its locking element, which includes an element integral with the moving part of the reverser, which cooperates with a mechanical locking device and a stationary elect... | 03/20/1984 |
| 4422678 | Latch A simple, easily-installed, and economical latch. The latch comprises a connector brace and means for affixing said brace onto a door frame, farm gate-post, vehicle frame, animal halter, or the like. The latch further comprises a rigid loop projecting out... | 12/27/1983 |
| 4295299 | Steel clad wood door frame A door frame comprising wood frame members including a strike jamb, a hinge jamb, and a header, said frame members each being recessed longitudinally to provide a rabbet having a major surface and a minor surface perpendicular to said major surface, a slo... | 10/20/1981 |
| 4281865 | Interior door security An interior door knob security cinch loop comprising, a rectangular shaped plate bent at appointed and spaced apart relationship to form a vertical back with a top and base horizontal extensions wherein, said top has a triangularly shaped eyelet extending... | 08/04/1981 |