Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 8060982 | Door safety mechanism A safety mechanism for preventing door slamming includes a board and a pivot extending from the board. A rotatable arm is attached at a first end to the pivot. Door arresting wedge (AW) is attached substantially perpendicularly to the second end of the arm. One or m... | 11/22/2011 |
| 7264284 | Door catch A door catch includes a back plate having two laterally symmetric sleeves formed on a front face thereof. An elastic check member is mounted in a rear end of each sleeve to replace a conventional screw to confine a steel ball and a spring in the sleeve, so that the ... | 09/04/2007 |
| 7156454 | Mechanism for preventing closure of automobile doors A linkage mechanism operably associated with the front and rear doors of an automotive vehicle that pivots a bumper device into an interfering position with respect to the closing of the front door against the B-pillar of the vehicle when the rear door remains opene... | 01/02/2007 |
| 7111360 | Door catch A door catch includes a back plate having two laterally symmetric sleeves formed on a front face thereof. A slot is provided on the back plate behind each of the sleeves at a predetermined position to communicate with an inner space of the sleeve, and an insert plat... | 09/26/2006 |
| 7047694 | Door safety guard A door safety guard utilizes two interconnected elongated members, one positioned on each side of a door and resting along a length of the door surface and the adjacent frame. Elastic bands are used to interconnect the two elongated members. Hinges may be used to se... | 05/23/2006 |
| 6948214 | Removable door check device A removable door check device for use for use with a door hinge for holding a vehicle door in an opened position. The removable door check device includes a body, a first contact element extending from the body and having a first contacting surface, and a second con... | 09/27/2005 |
| 6945281 | Weaving machine with a needle bar and an insertion element for warp threads The weaving machine comprises a needle bar (3) and an insertion-element (4) with which warp threads (13, 14) are guided and which are two components of a shed forming apparatus for the manufacture of leno cloths (1). The two components ar... | 09/20/2005 |
| 6904643 | Door closer hold-open apparatus The present invention relates to a hold-open apparatus for controlling the position of a door, preferably a screen door or storm door. The apparatus is used in conjunction with a piston assembly and can maintain a door in a predetermined open position, such as about... | 06/14/2005 |
| 6874198 | Door safety devices Gravity actuated door safety devices, which prevent injury to fingers and pet's tails, are provided. A swinging door safety device comprises a pair of spaced parallel bars connected to one another at one end by a crossbar. At the opposite end of each bar, a counterw... | 04/05/2005 |
| 6770686 | Photocationic initiator combinations New photocationic photoinitiator combinations are described that consist of 2,4,6-triarylpyrylium salts with non-nucleophilic anions and electron donors, that are able rapidly to crosslink unpigmented as well as pigmented mixtures based on cycloaliphatic epoxides to... | 08/03/2004 |
| 6550186 | Centrifugal force actuated door safety mechanism A mechanism for preventing injury to a person's (especially a child's) hand when a fast-closing door slams against a door frame or jamb. The mechanism comprises a casing which is positioned within a hollowed out portion of the door. The casing is construc... | 04/22/2003 |
| 6510587 | Door closure prevention apparatus and method A door closure preventing device is mounted on the inside surface of a door and has a pivotal stop moveable between a deactivated position within the periphery of the door and the extended position extending beyond the periphery of the door to prevent clo... | 01/28/2003 |
| 6487751 | Door safety devices Gravity actuated door safety devices, which prevent injury to fingers and pet's tails, are provided. A swinging door safety device comprises a pair of spaced parallel bars connected to one another at one end by a crossbar. At the opposite end of each bar,... | 12/03/2002 |
| 6334236 | Vehicle door prop clip for a vehicle hinge with split pins A vehicle door hinge-mounted prop clip for a vehicle hinge with split pins, comprises first and second interference lobes defining a undulating circumferential edge, said interference lobes being adapted to sequentially releasably contact a portion of the... | 01/01/2002 |
| 6189181 | Door retaining device A door retaining structure is provided for limiting the path of a door pivotably mounted on a door frame. The door retaining structure includes a connection structure for interconnecting the door and the door frame. An inertial locking device is operative... | 02/20/2001 |
| 5749123 | Safety device This invention relates to a safety device, and in particular to a safety device for a sliding panel, such as a patio door. The safety device includes an abutment (20), a carrier (21), for the abutment (20), a mounting arm (22) for the carrier (21), a pivo... | 05/12/1998 |
| 5740585 | Child safety device A child safety device which prevents children from closing sliding doors and windows which includes a blocking member which is attached to a door or window frame by an attachment member which allows the blocking member to be positioned in a blocking posit... | 04/21/1998 |
| 5680675 | Bi-Fold door safety wedge A pivotal sliding bi-fold door structure mounted in a door frame having a track slidably accommodating the bi-fold door structure. The bi-fold door structure comprising at least two door panels pivotally connected by a hinge member. The improvement compri... | 10/28/1997 |
| 5652998 | Child safety door stop mechanism The present invention relates to a door stop mechanism to be used as a child safety device. The door stop mechanism of the invention is for a door with a rotating door opening mechanism and a door jamb. The invention includes a blocking element, a flexibl... | 08/05/1997 |
| 5517720 | Cushion device for door closer assembly A door closer assembly provides a closing force to a door swingably mounted on a door jamb by a pair of arms pivotally attached to the door and the door frame. The door closer assembly has a housing and a spring for providing a closing force on the arm wh... | 05/21/1996 |
| 5369840 | Stop mechanism for a door A stop mechanism for a door associated with a jamb utilizing an arresting element. The arresting element is capable of withstanding force asserted on an object normally positioned between the door and the jamb. In addition, the arresting element is sized ... | 12/06/1994 |
| 5226201 | Door stop The invention provides an improved door stop which is adapted to retain a door in an open position, the door stop having a base which can be secured to a suitable wall or floor surface, a stopping portion which functions in the manner of a normal door sto... | 07/13/1993 |
| 4982474 | Door blocking device The present invention relates to an arrangement for a door intended, in conjunction with the closing of same, to prevent injury by crushing between the door leaf (4) and the case (2). The arrangement (1) comprises a body component (5) with a plane surface... | 01/08/1991 |
| 4368555 | Sliding door safety device A support device pivotally supports a resilient body on the leading surface of either a door or a sliding door frame in a manner whereby the gravitational force on the body moves the body between a sliding door and the frame. The body is mounted on a rod ... | 01/18/1983 |
| 4310947 | Sliding door safety device A support device pivotally supports a resilient body on the leading surface of either a door or sliding door frame in a manner whereby the gravitational force on the body moves the body between a sliding door and the frame. The body is mounted on a rod wh... | 01/19/1982 |
| 4261140 | Safety door for nursery schools, kindergartens and like environments Protective devices which are attached to a door and the surrounding casing for the purpose of providing maximum protection for the fingers of small children include: (1) a door stop device pivotally mounted on the front surface of the door, adjacent the f... | 04/14/1981 |
| 4165553 | Sliding door safety device A support device pivotally supports a resilient body on the leading surface of a sliding door frame in a manner whereby the gravitational force on the body moves the body between a sliding door and the frame. The body is manually movable away from the doo... | 08/28/1979 |
| 4028772 | Sliding door safety device A mounting device affixed to a sliding door frame supports a resilient ball in a manner whereby the ball is positionable in spaced relation with the door and the frame of the door when the door is closed thereby permitting the door to be securely closed a... | 06/14/1977 |
