US4553943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for shooting practice
Assignee: NOPTEL KY
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Filing: 1984-04-02
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Granted: 1985-11-19
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Expires: 2004-04-02
Abstract
Abstract An optic method for shooting practice in which a narrow light beam is used instead of a bullet. The light beam is provided by a light transmitter (2) of a visible or infrared area attachable to a gun, the ray transmitted by which transmitter is observed with a spot-sensitive optic detector (5, 6) from which is received continuous position information during aiming and discharging as well as, when desired, also the hit and the direction at the discharge instant (9). (FIG. 1).
Inventors
- 👤 Raimo Ahola
- 👤 Harri Kopola
- 👤 Risto Myllyla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:35
CPC Classifications
F; F41; F41G; F41G3/00; F41G3/26; F41G3/2616; F41G3/2622; F41G3/2655
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
191 words
A method for analyzing the aiming and firing process in shooting practice, comprising: a. attaching an optical electromagnetic radiation light transmitter to the gun which is used for shooting process; b. actuating said light transmitter to produce a light beam at least during the aiming and firing process; c. converting the trajectory of the hitting point of said light beam on a target surface, with an electro-optical device having a position sensitive detector, to continuous electric signals representing continuously the position of the hitting point of said beam on said target surface; d. generating a timing signal by a sensor attached to the gun and reacting to the movement of a drive element, as a trigger, parts attached thereto, firing pin and butt, moving when said gun is discharged for determining the discharge instant of said gun; e. further processing said continuous electric signals representing the position of the hitting point of said beam on said target surface and said timing signal by a control, display and analyze unit connected to said electro-optic device and said sensor generating a timing signal; and f. displaying the information in the further processed signals.
Claim 2
Independent Claim
191 words
A method for analyzing the aiming and firing process in shooting practice, comprising: a. attaching an optical electromagnetic radiation light transmitter to the gun which is used for shooting process; b. actuating said light transmitter to produce a light beam at least during the aiming and firing process; c. converting the trajectory of the hitting point of said light beam on a target surface, with an electro-optical device having a position sensitive detector, to continuous electric signals representing continuously the position of the hitting point of said beam on said target surface; d. generating a timing signal by a sensor attached to the gun and reacting to the movement of a drive element, as a trigger, parts attached thereto, firing pin and butt, moving when said gun is discharged for determining the discharge instant of said gun; e. further processing said continuous electric signals representing the position of the hitting point of said beam on said target surface and said timing signal by a control, display and analyze unit connected to said electro-optic device and said sensor generating a timing signal; and f. displaying the information in the further processed signals.
Claim 3
Dependent Claim
59 words
A method in accordance with claim 1, wherein in the further processing the momentary hitting point of the beam on said target surface is detected by sampling the continuous electric signals at a proper time determined by the timing signal, sampling at least one continuous electric signal, and displaying the position information in at least one said sampled signal.
Claim 4
Dependent Claim
51 words
A method in accordance with claim 1, wherein said further processing includes scaling the electric signals in said control, display and analyze unit to simulate different types of shooting, on the basis of features characteristic of the different types of shooting, as gun type, firing position, firing range and target size.
Claim 5
Dependent Claim
40 words
A method in accordance with claim 1, further comprising displaying the trajectory of said light beam on said target surface in the form of processed signals by a device, as a plotter or video monitor, providing a two-dimensional display surface.
Claim 6
Dependent Claim
49 words
A method in accordance with claim 1, wherein said timing signal is delayed in said control, display and analyze unit to the extent of a delay between the instant when a bullet would leave, if a bullet were used, the gun barrel and the reacting instant of said sensor.
Claim 7
Dependent Claim
44 words
A method in accordance with claim 1, wherein the hit point is displayed as a number value and as a reading of the time showing the deviation direction of the hit from the center by displays provided at said control, display and analyze unit.
Claim 8
Dependent Claim
55 words
A method in accordance with claim 1, wherein the information of said continuous electric signals indicating the trajectory of said light beam on said target surface during a limited period is stored before output into a data recording device, as a tape recorder or a digital memory, coupled to said control, display and analyze unit.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-18 | 1989-05-20 | 1989-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-18 | 1993-05-20 | 1993-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-18 | 1997-05-20 | 1997-11-19 | $7700.00 | Window Closed / Lapsed |