Ammunition and explosives – Bomb lance
Reexamination Certificate
1999-11-22
2001-11-06
Jordan, Charles T. (Department: 3641)
Ammunition and explosives
Bomb lance
C102S371000
Reexamination Certificate
active
06311623
ABSTRACT:
FIELD OF THE INVENTION
The invention generally relates to an arrowhead for bow or crossbow hunting and, in particular, the invention relates to an arrowhead powered by a rim-fired cartridge like those used in powder-powered tools.
BACKGROUND OF THE INVENTION
Bow hunting and cross-bow hunting are rapidly growing in popularity. Many archers take to the game lands to hunt. However, even with today's advanced equipment, the maximum distance from which one can take game successfully is not over 30 yards, and then only if the arrow is well-placed into a vital area without any bone obstruction. As is apparent, a bone will interrupt the arrow's penetration. If this happens, the shot becomes just a wounding shot and the game will run off into the woods and later perish. There is a need to end this waste and suffering.
U.S. Pat. No. 2,940,759 issued Jun. 14, 1960 to L. J. West discloses a power head arrow which is powdered by a series of child's cap pistol caps to give extra force to the arrowhead and disconnect the shaft. Such caps have a minimal amount of force. In accordance with the disclosure when the arrowhead contact the animal the reduction of speed of the arrowhead will cause explosion of the caps by the shaft continuing its velocity. The caps go off when the arrowhead strikes the animal and it is not seen how this explosive force will go into the direction of the arrowhead rather than in the reverse direction towards the shaft which, according to the patentee, disconnects with the arrowhead.
U.S. Pat. No. 2,620,190 issued Dec. 2, 1952 to D. Bean relates to a dart or arrow which has a sleeve protecting the tip. When the sleeve contacts the target a spring or other movement device causes the tip to extend beyond the sleeve and penetrate the surface of the target. Bean also discloses the use of his sleeve device for causing the discharge of a bullet into the target. He suggests the addition of pointed tines which will secure the device to the target after impact. This securing does not take place until after the contact which causes the bullet to discharge. U.S. Pat. No. 4,882,995 issued Nov. 28, 1989 to Henriksen et al relates to a harpoon with two explosive devices in its head with a time delay fuse for the second charge. Various mechanical device are disclosed for preventing the second charge from going off by mistake. The first charge goes off at the first contact. U.S. Pat. No. 4,729,320 issued Mar. 8, 1988 to Robert G. Whitten III discloses the use of a blank cartridge for aiding penetration of an arrowhead. The blank cartridge is exploded by contact with the surface of the target. U.S. Pat. No. 2,708,860 issued May 24, 1955 to J. W. Arpin discloses a power spear or harpoon with a blank cartridge powder charge which goes off when the spear hits the target.
SUMMARY OF THE INVENTION
According to the present invention, an arrow is provided with a head that will take game in a more humane way and without long suffering. This new arrowhead contains a powder cartridge which is conventionally used in powder activated cartridge powder tools. The explosion of the charge causes the arrowhead to separate itself from the arrow shaft. It is essential to the invention that the arrowhead penetrate a substantial distance into the body of the animal before the cartridge explodes, otherwise it will be ineffective to produce the result intended. As a result of the unleashed power, the arrowhead will penetrate deep inside the body of the game. Because the venting or separation occurs inside the game's body, it is silent but gravely stunning to all organs nearby. The result is on the spot drop and expiration, with minimal suffering and positive retrieval.
As indicated, in order to make the cartridge charge successful in accomplishing the desired result it is necessary for the arrowhead to penetrate a substantial distance into the animal. Without such penetration the explosion of the charge will cause the arrowhead to be dislodged or do substantial damage to the surface of the animal's hide without killing the animal. A penetration of at least one inch and preferably at least two inches into the body of the animal before the explosion is necessary to effect the advantages of the invention.
The arrowhead is activated by the powder or carbon dioxide gas and will take any big game successfully. The performance of the projectile can be varied by alteration of the shape of the cartridge housing, or the choice of different loads of the powder cartridge—six choices, progressively higher and higher in low velocity loads, and six choices progressively higher and higher in high velocity loads—color-coded for strength. This gives the hunter a last moment choice to select the load suitable to the game size. The activation of the power is done at the a defined interval after impact with the game body and at a depth determined by the speed and the weight of the arrow shaft and the resistance of the body of the game target. Since the activation occurs inside the games body it is silent but gravely stunning to all internal organs near the contact point.
Applicant's invention differs from the prior art in that all of the prior art use a blank cartridge with only the primer as the main charge. None of the references mention the second charge. Also, none of the references mention 12 different choices of powder loads. Further, none of the references deal with the problem of recoil since they are mostly underwater spears with the spear handle being heavier than a shaft of an arrow. Recoil is most pronounced by light objects like darts and arrows. The recoil is very important since it not only affects the penetration but also the ability of the arrowhead to stay in the game and effect the kill. The device used to control the degree of penetration is important. In Applicant's invention the penetration is controlled by the length of the trigger sleeve
50
a
. A longer sleeve gives deeper penetration. Further, Applicant's structure is readily assembled by hand. The arrowhead shown in
FIGS. 5 and 6
feature means to exchange the bullet housing with the powder charge according to the game size (stronger or weaker loads) by just unscrewing the bullet housing from the main head housing, and replacing it with the charge desired. In applicant's invention the whole arrowhead with part of the shaft is inside the game body and then the charge is triggered. The use of four or more prong springs is an important recoil absorbing means.
The novel features which are believed to be characteristics of the invention, both as to its organization and method of operation, together with further objects and advantages thereof, will be better understood from the following descriptions in connection with the accompanying drawings in which the presently preferred embodiments of the invention are illustrated by way of examples. It is expressly understood, however, that the drawings are for purposes of illustration and description only and are not intended as a definition of the limits of the invention.
REFERENCES:
patent: 2620190 (1952-12-01), Bean
patent: 2708860 (1955-05-01), Arpin
patent: 2940759 (1960-06-01), West
patent: 2970399 (1961-02-01), Frohlich et al.
patent: 3580172 (1971-05-01), Hendricks
patent: 3599569 (1971-08-01), Heartness
patent: 3838532 (1974-10-01), Prodanovich
patent: 3878788 (1975-04-01), Sam
patent: 4729320 (1988-03-01), Whitten, III
patent: 4762328 (1988-08-01), Beyl
patent: 4882995 (1989-11-01), Henriksen et al.
Graham, Curtin & Sheridan
Jordan Charles T.
Laughlin, Esq. Richard T.
Semunegus Lulit
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