"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 |
| 7908783 | Two in one sight An aiming sight has a base, two oppositely facing light emitting elements on the base, a pivot upon which the base rotates, a detent that holds the base at selected positions, and a spring, magnet or other structure that presses the sight towards the aimed device up... | 03/22/2011 |
| 7743546 | Firearm adapted for use in low light, illuminating rear sight, and method for aligning sights in low light environments A rugged adjustable, optical alignment system is well suited for use in low light environments or at night. A rear sight includes a U-shaped array of, preferably, first second and third substantially cylindrical, transparent, tritium vials arranged such that the elo... | 06/29/2010 |
| 7627976 | Fiber optic sight for firearms with nighttime capabilities New and unique improvements of prior known fiber optic sights for firearms with day and night time capabilities are disclosed that comprise (A) a sight base, (B) a fiber optic rod mounted in said base having an angle cut at the distal end which is positioned on the ... | 12/08/2009 |
| 7530193 | Apparatus and method for indicating tilt A tilt indicator for use on a firearm includes a signal to indicate if the firearm is level or out of level. The signal is located to be viewed by a user via the user's peripheral vision and his secondary concentration so the user can maintain his primary concentrat... | 05/12/2009 |
| 7287351 | Tactical sight for a semi-automatic hand gun A rear tactical sight for a handgun having a barrel with a barrel axis. The sight including a base extending in a longitudinal direction parallel to the barrel axis. The base having a front and an oppositely facing back with sides extending in the longitudinal direc... | 10/30/2007 |
| 7189584 | Fabrication alignment technique for light guide screen Provided is a fabrication alignment technique for a light guide screen. A plurality of light guide layers are provided. Each light guide layer includes a plurality of aligned light guides, each light guide having an input end, a midsection and an output end. The lig... | 03/13/2007 |
| 7159325 | Bow sight with fiber optics A bow sight having a support structure, and two or more vertically aligned vertical pins connected to the support structure is provided. At least two of the vertical pins include a sight point. In accordance with another aspect of the invention, a bow sight having a... | 01/09/2007 |
| 7100320 | Reticule The present invention is a reticule featuring both rapid close quarters target acquisition and precise distance shooting functionality. The reticule features a broad central aiming ring and four sets of aiming point indicating dots. The lowest set comprises dots of ... | 09/05/2006 |
| 7089698 | Method and apparatus for charging efflorescent material utilizing ultra violet light This invention provides method of rapidly charging a glow-in-the-dark material utilizing an ultra violet emitting LED in portable form to produce a long lasting illuminating effect. The method includes providing a structure having a glow-in-the-dark material incorpo... | 08/15/2006 |
| 7032341 | Adjustable rear sight for firearms The present invention comprises a new and improved adjustable rear sight for firearms which comprises a polymer sight body and a metal aperture screw which is adjustable for elevation by screwing the aperture screw up or down in a threaded insert which is inserted i... | 04/25/2006 |
| 6937791 | Optical coupling apparatus and method Apparatus and method for focusing light from an extended light source onto a secondary focal point (such as an input end of a light guide element). The apparatus includes a solid conic body formed in accordance with an ellipse, off axis paraboloid, or other conic sh... | 08/30/2005 |
| 6725854 | Illuminated sight pin A sighting device for use with a firearm or bow comprises a fiber optic member having a sight end visible by a user for aiming the firearm or bow at a target. A non-electrical, light-emitting material is disposed over a length of the fiber optic element in order to ... | 04/27/2004 |
| 6421946 | Removable sight assembly for weapons An inner sleeve is pressed, when installed on a weapon, between a feature of the weapon such as a rib, rail, or barrel, and an outer sleeve. An aiming indicia is mounted on the outer sleeve.... | 07/23/2002 |
| 6367189 | Non-protruding aiming apparatus for handguns A groove is provided on an upper surface of a handgun slide, wherein the groove is enclosed on one end and open at the rear end of the slide. The groove, beginning at a predetermined point along the top and extending rearward to the end of the slide, has ... | 04/09/2002 |
| 6360472 | Day/night weapon sight A phosphorescent or light-reflective member is disposed on a holder supporting an elongated light-gathering optical fiber formed of a light-gathering fluorescent plastic material. The sight is adaptable for use on rifles, handguns, bows, and other weapons... | 03/26/2002 |
| 6233836 | Day and night weapon sights Day and night weapon sights have a sight element which includes a rod-shaped light guide, and a self-luminescent capsule integrally co-located within an end of the light guide. Preferably, the light guide is formed of a rod-shaped fluorescently dyed trans... | 05/22/2001 |
| 6216351 | Day and night weapon sights A day and night weapon sight includes a mounting base, a rod-shaped light guide fixed to the mounting base, and a self-luminescent capsule fixed to said mounting base vertically adjacent the light guide. Preferably, the light guide is formed of a rod-shap... | 04/17/2001 |
| 6216352 | Day/night weapon sight A phosphorescent or light-reflective member is disposed on a holder supporting an elongated light-gathering optical fiber formed of a light-gathering plastic material. The sight is adaptable for use on rifles, handguns, bows, and other weapons requiring a... | 04/17/2001 |
| 6035539 | Fiberoptic gun sight A naturally illuminated three dot sighting system for firearms includes a rear sight having two dots formed by scintillating fibers encased in an optically clear polymer block, and a front sight having one dot formed by a scintillating fiber within an opt... | 03/14/2000 |
| 6014830 | Remountable gun sight for low illumination A removable and remountable gun sight comprising a point light viewable through an elongated tubular structure having a anti-reflective coating along the inner surface thereof, and a captive removable low illumination light source, preferably a chemical i... | 01/18/2000 |
| 5956854 | Day/night weapon sight A phosphorescent or light-reflective member is disposed on a holder supporting an elongated light-gathering optical fiber formed of a light-gathering fluorescent plastic material. The sight is adaptable for use on rifles, handguns, bows, and other weapons... | 09/28/1999 |
| 5878521 | Stealth sight device A stealth sight device including a front sight that has a housing positioned on a front mounting portion. The front mounting portion is positioned along a top front end of a barrel covering of a firing arm, and being secured thereto. The housing of the fr... | 03/09/1999 |
| 5862618 | Gun sight for sighting moving targets An elongated opaque member having a longitudinal recess including a fluorescent mark at the distal end thereof viewable only by the shooting eye of the shooter when the elongated member is mounted at the proximal end of the gun barrel. The fluorescent mar... | 01/26/1999 |
| 5836100 | Fiber optic sight A sighting device in the form of a fiber optic front sight has a frame which mates with a vent rib of a weapon. The frame defines a hole which fits over a front bead sight on the shotgun. A locking screw threadingly received in an upstanding boss on the f... | 11/17/1998 |
| 5671539 | Holster apparatus for luminescent weapon elements Holster apparatus for a hand held weapon and on which weapon are photoluminescent elements, chargeable by light produced by a lamp disposed in the holster and a switch controlled battery is used to power the lamp. Mirror elements may be used to insure tha... | 09/30/1997 |
| 5653034 | Reflex sighting device for day and night sighting A reflex sighting device for day and night sighting including a light collector assembly for providing illumination for a reticle pattern for sighting and having a fiber optic light collector section defined by an optical fiber arranged to receive ambient... | 08/05/1997 |
| 5638604 | Sighting devices for projectile type weapons A variety of sighting device embodiments for use on projectile type weapons including a scope type sight for archery and barrel supporting sights for guns. Some sights utilize a predetermined length of a light gathering flourescent fiber having a distal e... | 06/17/1997 |
| 5442861 | Sight pin and holder for archery bow A sight unit comprising a pin and holder for an archery bow adaptable for mounting onto a sight assembly of the bow and including an elongated length of a light gathering fluorescent fiber defining a lens at its distal end to which gathered ambient light ... | 08/22/1995 |
| 5359800 | Illuminated gun sight An illuminated gun sight which includes a housing configured for mounting onto a gun and defining a recess having an opening to the exterior of the housing; one or more radioluminous light sources; and apparatus for mounting the one or more radioluminous ... | 11/01/1994 |
| 5208989 | Sight viewing apparatus A sight viewing apparatus (10) is disclosed in the preferred form including an extruded tubular portion (12) slideably received on an extruded body portion (56). A lens (36) is captured by first and second extruded collars (42, 44) slideably received with... | 05/11/1993 |
| 5205044 | Luminous dot sighting instrument In a luminous dot sighting instrument: dots of different color are produced using different mirror coatings that differentially reflect different wavelengths of light from a single diode or several diodes of the same color, or from different color diodes;... | 04/27/1993 |
| 5101589 | Illuminated ordnance organization A firearm is provided with a handle frame and a receiver frame, wherein the invention includes illuminated indicators in varying configurations to include a descending order of lined length along a rear wall of the handle frame and on each side wall of sp... | 04/07/1992 |
| 5065538 | Nocturnal rifle sight organization Apparatus including a front sight aligned with a rear sight mounted coaxial relative to one another overlying a barrel portion of an associated rifle. The front sight is of a generally Y-shaped configuration including a matrix of luminescent dots with a p... | 11/19/1991 |
| 5065519 | Iron sight with illuminated pattern An iron sight for night, day time and transition light sighting having a luminous source for night sighting and an accurately defined circle of a predetermined thickness surrounding such luminous source for daytime and transition light sighting and in one... | 11/19/1991 |
| 5025564 | Sight viewing apparatus A viewing and sighting apparatus is disclosed in its preferred form utilizing a self-luminous lighting material marked on and within clear see-through lenses and may be provided with an electronically lit light source. The sighting device is characterized... | 06/25/1991 |
| 4993158 | Gunsight A both eyes open channel sight where the vision of one eye is shielded from the sighting picture by the channel walls of the channel sight. In one embodiment the channel sight has a pair of parallel light reflecting surfaces that are located at the topmos... | 02/19/1991 |
| 4918823 | Gunsight A sighting device for mounting on the top of a weapon comprising a channel member having a pair of sidewalls extending upward, with the sidewalls having parallel topmost light reflective sighting surfaces to quickly guide the user's eye into initial align... | 04/24/1990 |
| 4912852 | Viewing apparatus A viewing apparatus for the purpose of separating a particular view from its surroundings and for the purpose of identifying the distance of the viewed object is disclosed. A viewing apparatus that attaches to and is used in conjunction with firearms weap... | 04/03/1990 |
| 4734989 | Viewing apparatus Preferred forms of viewing apparatus according to the teachings of the present invention are shown as including an enclosed and elongated see-through passage having a hooded front opening. The rear end of the enclosed and elongated see-through passage inc... | 04/05/1988 |
| 4734990 | Viewing apparatus A viewing apparatus for the purpose of separating a particular view from its surroundings and for the purpose of identifying the distance of the viewed object is disclosed. A viewing apparatus that attaches to and is used in conjunction with firearms weap... | 04/05/1988 |