This application claims priority under 35 USC §119 to Finnish Patent Application No. 20145012 filed on Jan. 8, 2014, which application is hereby incorporated by reference in its entirety.
The present invention relates to packages for cartridges of firearms having a container element filled with a number of cartridges.
Packages for cartridges of firearms typically comprise a container element filled or fillable with a given number of cartridges, and at least one closure element for the container element. In cartridge packages the container element typically consists of a simple box and the closure element is formed of a cover which can be swung by folding or is removable by pulling out. The cartridges are arranged in the box either loosely or in a holding element such as, for instance, a honeycomb frame. A label with information about the cartridges is typically attached to the outside of the container element. The information on the label comprises for example caliber, information of bullet type, code, weight, game, velocity, length of barrel, energy, trajectory, etc. The information can also be directly printed on the surface of the container element. Trajectory of the bullet of the cartridge type contained in the container element is typically presented in a trajectory table indicating the trajectory of the bullet at given distances in the calibrating adjustment temperature, typically +20° C.
Among other things such as gravity, wind, humidity, and elevation, temperature also has an effect to the trajectory of the bullet. The air temperature and the temperature of the powder are the main influencing factors in the temperature effect to the trajectory of the bullet.
An object of the present invention is to create a package for cartridges of firearms by which the above described problem relating to the need for information regarding the temperature effect on the bullet trajectory is eliminated or at least minimized.
Another object of the present invention is to create a new type of presenting information of temperature effect on the bullet trajectory.
In order to achieve the above objects and those that will become apparent later, the package for cartridges of firearms is mainly characterized by the features of the characterizing part of claim 1.
Dependent claims present advantageous features and embodiments of the invention.
According to the invention the package for cartridges of firearms comprises a container element filled with a given number of cartridges and on the container element is arranged information of temperature effect on the trajectory by means of intelligent printings each visible at the selected temperature or temperature range. Advantageously the information of the temperature effect on the trajectory is arranged on the outer surface of the container element. By this arrangement, the effect of temperature on the trajectory is available to the shooter for the required correction needed at the shooting temperature.
According to an advantageous feature of the invention, temperature effect on the trajectory of at least two temperatures or temperature ranges is printed on the container element or on a label attached on the container element.
According to an advantageous feature of the invention, temperature effect on the trajectory of at least two temperature ranges is printed on the container element or on the label attached on the container element by intelligent printings, each visible at the selected temperature or temperature range of the at least two temperatures or temperature ranges. By this feature, the temperature effect in trajectory at the shooting temperature is visible and easily available for the shooter.
According to an advantageous feature of the invention, the label comprising the information of the temperature effect on the trajectory is releasably attached on the container element so that the shooter can take a number of cartridges and the label with him when going to shoot and leave the container behind with the rest of the cartridges.
According to an advantageous feature of the invention, the label comprising the information of the temperature effect on the trajectory is releasably and reattachably attached on the container element so that the shooter can take a number of cartridges and the label with him when going to shoot and leave the container behind with the rest of the cartridges and at shooting attach the label on the magazine and when back from the shooting re-attach the label on the container element for future needs.
According to an advantageous feature of the invention, the information of the temperature effect on the trajectory is arranged as a table and/or as a curve.
Advantageously the container element comprises at least one closure element having a simple box and the closure element also has a cover which can be swung by folding or is removable by pulling out. The cartridges are arranged in the box either loosely or in a holding element such as, for instance, a honeycomb frame.
Advantageously on the container element or on the label of the container element is arranged additional information useful for the shooter when the shooting.
In this description and the following claims the term “intelligent printing” is meant a printing made by intelligent printing ink, which comprises substances and/or particles that affect the visibility of the printing in relation to temperature or temperature range such that the printing is visible at given temperature or temperature range.
In the following the invention and its advantages are explained in greater detail below in the sense of examples and with reference to accompanying drawings, where
Advantageously each table 11, 12, 13 is visible at the corresponding temperature i.e. +20° C. or −20° C. or +40° and thus vide in shooting environment temperature. Thus the package for cartridges of firearms comprises the information of the temperature effect on the trajectory, which information is arranged on container element for example as table diagraphs 11, 12, 13 in accordance with the examples of
Number | Date | Country | Kind |
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20145012 | Jan 2014 | FI | national |