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| Number | Title | Issue Date |
| 6558266 | Golf training glasses Golf training glasses to assist a golfer's swing comprising a frame, a pair of lenses associated with the frame and a sight guide associated with each lens. The sight guide includes an upper guide bar and a lower guide bar, wherein the upper and lower gui... | 05/06/2003 |
| 6061916 | Head tracking system A head tracking system 10 comprises a radiation emitter 18 and a radiation sensor 16 connected to a tracking processor 12. The emitter 18 has an output 46 producing radiation with spectral peak in the range 1000 nm to 1100 nm from a conventional LED 40 wi... | 05/16/2000 |
| 5904142 | Device for estimating central venous pressure A device capable of providing non-invasive, accurate estimates of central venous pressure. This diagnostic device is particularly useful with patients suffering from cardiac disease.... | 05/18/1999 |
| 5507740 | Corneal topography enhancement device A thin, pliable mat to enhance visualization of corneal topography during rastostereography or videokeratoscopy. The mat is approximately 20 microns or less in thickness and constructed from hydrophobic material. In one preferred embodiment, the mat has a... | 04/16/1996 |
| 5479712 | Triangulation rangefinder for archers An archery rangefinder for use from an elevated position comprises a power supply for an electronic digital panel meter and a power supply for two voltage divider circuits that comprise the rangefinding circuit. One voltage divider provides a voltage sign... | 01/02/1996 |
| 5379140 | Goggles having microlenses and display element Material made up of a thin layer between two surfaces, a first and a second, to be used as the third layer of a transparent goggles face, the first layer being a screen and the second layer being a thickness layer, remarkable in that the material consists... | 01/03/1995 |
| 5353134 | Weapon aiming device Material made up of a thin layer between two surfaces, a first and a second, to be used as the third layer of a transparent goggles face, the first layer being a screen and the second layer being a thickness layer, remarkable in that the material consists... | 10/04/1994 |
| 5212720 | Dual radiation targeting system Subsurface regions of an X-ray transparent but optically opaque object are targeted along a visible line of sight obtained by the use of two radiation sources (an X-ray and light beam source, preferably a laser). The central ray from the X-ray source and ... | 05/18/1993 |
| 5199712 | Golf swing training apparatus A golf swing training apparatus is disclosed having a housing, a circuit board, a buzzer, a battery, an on/off switch, and a pair of mercury switches. The housing has a clip member extending therefrom with the housing being capable of attachment in a pref... | 04/06/1993 |
| 5176342 | Goggles emergency release apparatus A goggles emergency release apparatus is disclosed wherein an actuator, ptioned adjacent the goggles latching mechanism, drives a wedge into the mechanism to push a release pin into the open position and push the goggles away from the helmet. The actuato... | 01/05/1993 |
| 5052114 | Golfers optical alignment instrument A golfing instrument that allows two dissimilar objects, one object presented to the right eye, and the second object presented to the left eye to be seen simultaneously by the golfer, which allows the golfer to align the intended target that the golf bal... | 10/01/1991 |
| 4912853 | Reticle plate and method for establishment of a north-oriented or south-oriented line by circumpolar orientation A reticle plate provided with a reticle and three concentric circles of ving diameter and methods of use thereof, the invention allows a user to establish a north-oriented or south-oriented line by alignment of selected circumpolar stars with the circles... | 04/03/1990 |
| 4762325 | Training device for golfers A golf instructional aid mounted upon the golfer's head to teach and encourage head immobility during swinging of the golf club and to aid in alignment of the club swing and movement with respect to the desired direction of ball travel. A cap mounted supp... | 08/09/1988 |
| 4711411 | Aircrew headgear ejection means An apparatus for ejecting an aircrewmans helmet-mounted electro-optical equipment from an aircraft cockpit comprising an arm having a first end pivotally mounted at a position behind an aircrewmans ejection seat, a second end of the arm having on it a lin... | 12/08/1987 |
| 4696111 | Device for assessing inclination A viewing device to assist a golfer or the like in assessing transverse inclination of terrain along his sight line, including a base assembly adapted for attachment to a cap, hat or headpiece worn by the golfer or the like, a vertical plumb element pivot... | 09/29/1987 |
| 4651951 | Apparatus for the removal of helmet-mounted equipment Apparatus for detaching helmet-mounted equipment (6) from the helmet (4) of a vehicle-mounted user (1) includes a quick-release fastening (8) securing the equipment to the helmet. A removal cord (11) passes from the equipment by way of a guide (10) and is... | 03/24/1987 |
| 4566808 | Scanning radiation detector A radiation detector includes a flat housing 14 having a radiation sensor 16 at one end thereof and a bar graph display 18 at the other end thereof. The bar graph display provides an indication of radiation sensed from a limited surface area as the sensor... | 01/28/1986 |
| 4550984 | Head-mounted or helmet-mounted sighting device An image forming a sighting reticle can be displayed at infinity in the landscape under observation without any need for a collimating optical system. To this end, a birefringent crystal plate having parallel faces is placed between two crystal plates emp... | 11/05/1985 |
| 4498238 | Transparent perspective tracing board A transparent perspective hand-held tracing board is shown for use with a sheet of transparent drawing material. This board is formed of a rigid plastic or glass panel. A measured pattern is imprinted on the panel to assist in judging distance and relativ... | 02/12/1985 |
| 4486955 | Angular position sensors An angular position sensor, suitably for use in a helmet sight system, comprising a link member (3) connected by first and second (5 and 49) coupling means respectively to first and second fixing means (7 and 57, 59, 63) whereby the sensor may be attached... | 12/11/1984 |
| 4415159 | Golf stance viewer A golf stance viewer having a lens for looking at the positioning of one's feet and golf ball, said lens having stance indicating lines associated therewith for indicating foot and golf ball placement; a leveling device being provided to place said viewer... | 11/15/1983 |
| 4158259 | Marble shooting sight A hollow body is provided defining a pair of openings therein opening outwardly of the interior of the body in directions disposed at generally right angles relative to each other. A substantially planar light reflective surface is mounted within the body... | 06/19/1979 |
| 4141152 | Piloting instrument A small, light magnetic compass, in which the magnetic moment of the compass card is large relative to its weight, is adjustably mounted upon a member firmly coupled to the human head so that accurate compass bearings may be obtained, or a vessel steered,... | 02/27/1979 |
| 4081912 | Magnetic bearing plotting and sighting device A device for taking and plotting magnetic bearings which includes an elongated straight edge device having numerical graduated indicia along one edge thereof, and a housing receiving said straight edge. A magnetic compass is mounted on the straight edge, ... | 04/04/1978 |
| 4063731 | Golf tool There is disclosed a multi-purpose golfer's tool. The tool provides a distance estimating facility which in turn provides automatic selection of a golf club suitable for the distance so determined. A divot tool and dry-club-grip support are provided in ad... | 12/20/1977 |
| 4062247 | Telescoping linkage for helicopter sight A mechanical linkage connected between a pilot's helmet and a reference point in an aircraft permitting freedom of movement of the pilot's head in three dimensions as he visually tracks a target. A set of metal tapes provides freedom of movement in the lo... | 12/13/1977 |
| 4059347 | Optical instrument and viewing method A see-through zone is provided of a shape and size so that the horizontal end portions of the zone will merge as an image defining a target frame into which the user can center a stationary or moving target by keeping his line of sight properly on the tar... | 11/22/1977 |
| 4034401 | Observer-identification of a target or other point of interest in a viewing field A head-up display system in a military aircraft provides projection of flight and weapon-aiming information into the pilot's line-of-sight through a partially-transparent reflector. The pilot operates a button firstly when he recognizes a target viewing t... | 07/05/1977 |
| 4022475 | Golf training aid Disclosed is a pair of eyeglasses with laterally slidable vision screens in each of the eyeglass openings. The vision screens have an opaque lower portion and a transparent upper portion, and have a clear see-through vertical slit which extends into the l... | 05/10/1977 |
| 3977086 | Range estimating device for golfers Apparatus for estimating the range of a golf course flagstick in terms of a number of paces which is common to all users. An opaque body adapted to be held in the hand is so shaped that its profile has two parallel ridges which face in the same direction,... | 08/31/1976 |
| 3934353 | Surveying instrument This invention relates to surveying instruments of the type by means of which measurements relating to deviation from a true level line, distance, vertical angles, linear alignment of points at various elevations, horizontal angles and the like may be obt... | 01/27/1976 |
