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"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 7281401 | Protective sleeve for latch mechanism for lock A protective sleeve for a lock includes a circumferential wall delimiting a longitudinal through-hole. The circumferential wall includes at least one longitudinal slot, forming at least one shielding skirt for shielding a housing of a latch mechanism of a lock that ... | 10/16/2007 |
| 7219519 | Cylinder housing for auxiliary lock A cylinder housing includes a longitudinal hole for receiving a cylinder of an auxiliary lock. An annular flange is formed on an end of an outer circumference of the cylinder housing, leaving an annular end portion on the end of the cylinder housing. The cylinder ho... | 05/22/2007 |
| 7111554 | Lock assembly for a stamping device A lock apparatus for securing a hand-stamping device to prevent an unauthorized stamping operation includes two locking heads constructed to establish a ridged interconnection with the base frame and the upper actuator frame of the hand-stamping device. The locking ... | 09/26/2006 |
| 6959567 | Lid device of double-sided auxiliary lock A lid device of a double-sided auxiliary lock comprises an inner annular wall, an outer annular wall and a plurality of engaging portions. The engaging portions are equi-spaced on the outer annular wall. A double-sided auxiliary lock has an interior auxiliary lock a... | 11/01/2005 |
| 6883356 | Transmission apparatus for holding a lock core of a supplemental lock A transmission apparatus to hold a lock core of a supplemental lock includes an inner housing, a lock coupler, a latch bolt coupler, a restitution element and a cover. The inner housing has a lock core chamber. The lock coupler is rotatably mounted in the lock core ... | 04/26/2005 |
| 6840073 | Lid device of double-sided auxiliary lock A lid device of a double-sided auxiliary lock, the lid device includes an inner annular wall, an outer annular wall and engaging portions. The engaging portions are equi-spaced on the outer annular wall. A double-sided auxiliary lock has an interior auxiliary lock a... | 01/11/2005 |
| 6829993 | Lock for a hand stamping device A lock apparatus for securing a hand stamping device to prevent an unauthorized stamping operation includes two locking heads constructed to established a ridged interconnection with the base frame and the upper actuator frame of the hand stamping device. The lockin... | 12/14/2004 |
| 6568727 | Retention and reinforcement system for knobs and levers A collar coacts with a chassis, sleeve and lever of a lockset to provide a retention and reinforcement system for lock assemblies. The collar has a flanged portion and a sleeve-engaging portion and is sandwiched between a lever and the cylinder. The sleev... | 05/27/2003 |
| 6412319 | Lockset having keyed egg-shaped knob A keyed knob assembly (10) having a knob portion (12), a knob insert (14) partially received within a bore (18) formed in the knob portion (12) and a shank portion (16) partially covering the knob insert (14) is disclosed. A throughbore (48) formed in the... | 07/02/2002 |
| 6364382 | Drawing plate structure of a latch of an auxiliary lock A drawing plate structure of a latch of an auxiliary lock includes a drawing plate having a top portion extended toward one side, thereby forming a top flat portion. A lock tongue is provided with a slot, and the top flat portion of the drawing plate is i... | 04/02/2002 |
| 5983683 | Adapter device for a key-in-lever type lock An adapter device for a key-in-lever type lock having at least a mounting plate and an escutcheon includes a disk having a central hole defined therethrough so as to receive screw posts, and a split spindle extending from the mounting plate, the disk havi... | 11/16/1999 |
| 5931430 | Motor assembly for cylindrical lockset A motor-mount apparatus is provided for use with a motor-actuated cylindrical lockset that has a rotatable handle sleeve and a motor with a wire harness extending therefrom. The apparatus includes a motor housing adapted to lie within the rotatable handle... | 08/03/1999 |
| 5906125 | Auxiliary lock An auxiliary lock includes a cylinder which includes a tailpiece projected from one end thereof, a cylinder housing firmly receiving the cylinder therein and including a hollow protrusion projected from a shoulder thereof, a trim rotatably receiving the c... | 05/25/1999 |
| 5884512 | Multi-use lock housing and cylinder A multi-use lock housing and cylinder includes a cylinder of a size and shape such as that typically used in key-in-knob locks. A two-part housing includes an outer housing portion and an inner housing portion, each having a bore and a slot into which the... | 03/23/1999 |
| 5722273 | Latch bolt operating device A latch bolt operating device is adapted for use with a latch bolt unit that is installed in a door panel, and includes exterior and interior operating units. The exterior operating unit includes a key-operated plug-and-cylinder lock assembly, and an exte... | 03/03/1998 |
| 5713231 | Protective cover for double-sided type auxiliary locks An auxiliary lock includes a dead bolt, an interior lock assembly and an exterior lock assembly respectively mounted on two sides of a door. Each of the interior lock assembly and the exterior lock assembly includes a housing, a positioning seat, a lock c... | 02/03/1998 |
| 5697238 | Key cylinder A key cylinder to be attached to an outer panel for a vehicle is provided. The key cylinder includes a cylinder body and a casing for accommodating the cylinder body therein. The casing has a drain hole formed at a lower portion thereof for discharging th... | 12/16/1997 |
| 5249444 | Door assembly including swivel latch A door assembly having a cylinder plug tailpiece including a swivel latch with passageways, such swivel and passageways being located so that assembly of lock tailpieces cannot be assembled out of phase. The passageways have frangible ends to assist in as... | 10/05/1993 |
| 5216910 | Auxiliary lock with an anti-breakage device An auxiliary lock with an anti-breakage device having a seat combined with a base and an inner ring covered with an outer ring, a latch unit being deposited in the housing and having a recessed opening in an outer end for a reinforcing plate to fit therei... | 06/08/1993 |
| 5186030 | Locking device for an auxiliary lock A locking device for an auxiliary lock comprising a rotatable ring, able to be rotated at the outside of a lock to turn an actuating wheel 90°, said actuating wheel having an 8-shaped opening for an actuating plate of the dead bolt to pass through so tha... | 02/16/1993 |
| 5010749 | Locking device for an auxiliary lock A locking device for an auxiliary lock comprising a rotatable ring and a base. The ring is fitted around the auxiliary lock and combined with the base. Then they are mounted in the door to let a large part of the rotatable ring be exposed outside the door... | 04/30/1991 |
| 4854620 | Door set mounting A door set mounting including a baffle assembly formed of two circular sheet metal members arranged in face-to-face relationship, and a cylindrical tubular shroud also formed of sheet metal which extends around those members so as to be substantially coax... | 08/08/1989 |
| 4161334 | Protective appendage for a steering column A protective appendage for the steering column of an automobile, made of a thin and semi-flexible material which is adapted to surround the area in the vicinity of the ignition key lock. The appendage is preferably thermo-formed from a clear plastic such ... | 07/17/1979 |
| 4109498 | Fire sleeve for tubular locks A resilient sleeve is provided as an accessory to enclose the space around a tubular type door lock mechanism mounted in a hole bored through a door. The diameter of the sleeve is normally larger than the diameter of the bore so that after being contracte... | 08/29/1978 |
