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| Number | Title | Issue Date |
| 7419197 | Portable security lock for doors A door securing apparatus is disclosed for securing a door in a closed position in a door frame. The apparatus includes an anchor member for removably securing to a portion of the door frame, with at least a portion of the anchor member being positionable between th... | 09/02/2008 |
| 7017959 | Portable security device for doors A portable door locking device. In one embodiment, a door lock may include a base plate configured with a locking wedge and a driver wedge. The base plate may be formed in a U-shaped fashion, thus defining a cut-out region sized to receive the locking and driver wed... | 03/28/2006 |
| 7007986 | Access cover fastening device A hollow aluminum pole has access to its interior through a hand hole frame having an access aperture which can be blocked by a cover having a lower end pivotally attached to the hand hole frame by a pivot pin. The pivot pin is biased inwardly by a coil spring which... | 03/07/2006 |
| 6644698 | Folding door bar lock A bar lock having two interconnected aluminum bars for engaging handles on folding doors, and preferably extending across all the seams in the folding doors to prevent the simultaneous outward and lateral opening motion of the doors. Clamping the horizont... | 11/11/2003 |
| 6409236 | Portable door lock The present invention is a portable door lock which comprises a bracket having a protrusion capable of insertion into a lock chamber of a doorframe. The bracket is connected by means of a hinge to a threaded bolt, upon which a hinged brace is slidably mou... | 06/25/2002 |
| 6311367 | Apparatus and method for supporting a door in an open position A door support for holding open a door equipped with a hydraulic-type closure having a pair of closure arms and a hydraulic element comprises first and second channel members, each having a top side, a hinged wall and latching wall, with both walls spaced... | 11/06/2001 |
| 5704664 | Door security device The device is used for security by e.g the occupier of a hotel room. A toggle-type self-gripping mechanism is provided with thin jaw-blades. The blades are entered into the slot or gap between a door and a door jamb. The jaws engage the door-bolt, and the... | 01/06/1998 |
| 5666831 | Anti-tampering locking system A locking system comprising a locking fastener having tamper-resistant features, and a special key having a bit at one end for engaging a socket in the head of the locking fastener to rotate the latter. The internal configuration of the socket corresponds... | 09/16/1997 |
| 5667262 | Portable, adjustable door lock device and method of use A portable, adjustable door lock device and method of use therefore, which provides a device having a first and second blade member which are pivotably pinned together, thus, forming substantially a "V-shaped member" having two pointed ends, with the ends... | 09/16/1997 |
| 5531491 | Security door lock The present invention provides a new and improved portable door lock that can be used in conjunction with a door, a door jamb and a striker plate. The portable door lock comprises a bolt having a first end, a second end and an intermediate extent therebet... | 07/02/1996 |
| 5515704 | Security lock for a dead bolt lock assembly A security lock (10) including an arm (14) and a mounting member (12) is provided for use with a dead bolt lock assembly having a lock actuator on a first side (34) of a door (32) and a turn piece (36) on a second side (38) of the door (32). When the secu... | 05/14/1996 |
| 5462322 | Portable door lock A portable door lock operable from the inside of a door for selectively clamping or unclamping the door latch. Such door lock comprises two halves pivoted together centrally and having confronting serrated semi-circular openings at one end and screw means... | 10/31/1995 |
| 5462321 | Auxiliary door lock for an outwardly opening door Small portable mechanical units manually installable to provide an auxiliary lock for outward opening doors such as are normally used on motor homes etc are disclosed. Embodiments are included that are useable on doors with various types of latching mecha... | 10/31/1995 |
| 5221116 | Auxiliary locking device for a door knob An auxiliary locking device to be employed in a door knob includes a lock body that has at least two parallel through-bores extending through the body. A first retaining bolt is slidably received in one of the through-bores and includes two ends extending... | 06/22/1993 |
| 4958868 | Door bar A door bar for use in combination with a door and a door frame for maintaining the door in a closed position with respect to the frame includes a plate member which is attached to the door frame and a bar member defining a slot therein. The plate member d... | 09/25/1990 |
| 4865369 | Removable door lock A removable door lock system is disclosed that includes a modified striker plate and a cooperable plate. The striker plate includes an opening in an outwardly extending tongue. The plate has two end portions adapted to bear against the door and the doorja... | 09/12/1989 |
| 4462624 | Latch dead-bolting means In a first embodiment of the invention there is a substantially annular and flat frame for circumscribing a latch, in a door or the like, by interfitting between the latching edge of the door and the door-way frame. The latch-circumscribing frame has a pa... | 07/31/1984 |
| 4268074 | Devices for locking sliding closures A locking device to prevent relative movement between relatively movable members such as between relatively movable sliding window and sliding door members, said relatively movable members having openings which can be placed in registration in predetermin... | 05/19/1981 |
| 4198088 | Removable door lock Disclosed herein is a door lock attachable to the edge of a door and selectively deployable to engage the floor adjacent the door to thereby prevent the door from opening. More specifically, the door lock comprises a slide adapted to be clamped to the doo... | 04/15/1980 |
| 4148508 | Locking device for sliding windows and the like A locking device for sliding windows and doors, including a removal-preventing bar, wherein the window is freely slidable within a track formed in the lower frame portion of a window casement, the locking device comprising a main body having a lower groov... | 04/10/1979 |
| 4082335 | Portable door securing device A portable door securing device or lock particularly adapted for use by travelers so that such persons can secure a door, such as in a motel, hotel, or the like, in a closed condition. The device is also useful in homes, apartments, or the like, where it ... | 04/04/1978 |
| 3930678 | Locking means for sliding closures Locking means to prevent movement between relatively movable members such as between sliding windows or sliding doors, said locking means including a body portion having a flange formed adjacent opposite edges, said flanges being substantially parallel to... | 01/06/1976 |
