This invention relates apparatus used for reloading firearm ammunition, and specifically an apparatus for separating and drying ammunition casing and cleaning media.
Generally, small firearms ammunition casing can be reloaded, but first must be cleansed of the dirt and fouling created during discharge of the round. Generally, casings are cleaned in a three step process consisting of “tumbling” the casings in the granular cleaning medium, then separating the tumbled casings from the cleaning medium, washing the casings to remove any cleaning medium dust or residue, and finally drying the casings before reloading.
Mechanical devices, commonly referred to as tumblers, have been developed that stir, roll and vibrate the casings in a granular cleaning media, typically crushed walnuts or small bits of stainless steel rod (steel rod shot) to remove any carbon fouling or dirt from the casings. The granular cleaning medium acts as an abrasive that cleans and lightly polishes the casings. In addition, a variety of mesh screens, sieves and mechanical filtering devices have been developed to physically separate the “tumbled” casings from the granular cleansing medium. Heretofore, washing the separated tumbled casings has been accomplished by hand washing or washing in a conventional dish washer type device. Moreover, drying the separated tumbled casings has been accomplished by simply air drying or the manual use of hand blow dryers.
The present invention provides an apparatus for rinsing, drying and separating ammunition casings from the granular cleaning media. The separator/dryer reduces the time and labor required for preparing ammunition casings for reload and recovering reusable cleaning media, such as stainless steel rod shot. The separator/dryer of this invention includes a housing, removable collection trays, a separator assembly, a rinse assembly, and a heater/blower. The housing provides the support structure and enclosure for the rinsing, drying and separating of the ammunition casings from the cleaning media and the rinse waste. The rinse assembly provides a water shower to rinse any cleaning residue, carbon particulate or dust from the ammunition casings and the cleaning media. The heater/blower circulates a stream of hot air into the housing interior to dry ammunition casings and the cleaning media. The separator assembly is used to initially separate the ammunition casings from the clean media and any rinse waste (water, soapy residue, and carbon fouling). The separator assembly includes a separator basket, which is a filtering vessel into which the tumble cleaned mixture of ammunition casings, granular cleaning media and cleaning fluids is initially deposited. The separator basket is suspended within the housing interior above collection trays for longitudinal rotation about a motor driven shaft. The collection trays collect both the dried ammunition casings and clean media. The above described features and advantages, as well as others, will become more readily apparent to those of ordinary skill in the art by reference to the following detailed description and accompanying drawings.
The present invention may take form in various system and method components and arrangement of system and method components. The drawings are only for purposes of illustrating exemplary embodiments and are not to be construed as limiting the invention. The drawings illustrate the present invention, in which:
In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings that form a part hereof, and in which is shown by way of illustration specific preferred embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, and it is understood that other embodiments may be utilized and that logical, structural, mechanical, electrical, and chemical changes may be made without departing from the spirit or scope of the invention. To avoid detail not necessary to enable those skilled in the art to practice the invention, the description may omit certain information known to those skilled in the art. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims.
The separator/dryer of this invention is used in preparation of previous discharged ammunition casings for reload. The separator/dryer rinses, dries and separates the casings from the granular cleaning media and is particularly useful for recovering the stainless steel rod shot used in some tumble cleaning processes, although it may be used to rinse, dry and separate casings from any cleaning media. In a typical tumble cleaning process with stainless steel rod shot, fouled ammunition casings are cleaned in a tumbler using stainless steel rod shot mixed with soapy water. Once the casings are cleaned in the tumbler, the tumbled mixture of casings, cleaning media and fouled soapy water is dumped into the separator/dryer, which rinses, dries and separates the casings from the cleaning media and the rinse waste (water, carbon fouling, dirt, soap and any other residue) for collection and reuse.
Referring now to the drawings,
Generally, housing 110 is a watertight rectangular box constructed from rust and chemical resistant materials, such as stainless steel and polymer plastics, using conventional manufacturing techniques. Housing 110 has an interior 111 defined by a pair of opposed side panels 112, a front panel 114, a rear panel 116 and a top panel 118. Housing 110 includes a hinged lid 120 and a hinged front panel cover 124 that open and close to provide access into housing interior 111. Lid 120 is pivotally connected to top panel 118 by a pair of piano hinges 121. A pair of lid stops 122 are mounted to top panel 118 to support lid 120 in its open position. Front panel cover 124 is pivotally connected to front panel 114 by a pair of piano hinges 125. A pliable seal flange 126 is connected to front panel cover 124 to hermetically seal the seam between the panel cover and front panel 114 when the panel cover is in its closed position. Rear panel 116 has a large central opening 117. Housing 110 includes a stainless steel screen 131 seated within rear panel opening 117 and a removable rear cover 130 that covers rear panel opening 117. Rear cover 130 is inserted into housing 110 through a slot opening 119 in top panel 118 and is held over rear panel opening 117 by flanged tracks 132 affixed to rear panel 116. Housing 110 includes a drain pan 160 for collecting rinse waste. A drain port 162 is seated in rear panel 116 and connected to a drain line 164 that transports rinse waste 16 from separator/dryer 100 for disposal.
One of two removable collection trays—collection (casing) tray 140 or collection (media) tray 140′ is inserted into an upper opening (not numbered) in front panel 114. Collection trays 140 and 140′ are supported within housing interior 111 by a pair of support flanges 148 affixed to the inside of side panels 112 (
Each collection tray 140 and 140′ includes a tray frame 142 and has a screened bottom 144. Screened bottom 144 is constructed of a stainless steel wire mesh having mesh openings sufficient to allow rinse waste 16 to pass through, while collecting the cleaning media 14. Collection (casing) tray 140 and collection (media) tray 140′ are substantially identical, except that collection (casing) tray 140 includes an additional screened bottom 146 suspended above screen bottom 144. Screened bottom 146 is constructed of a stainless steel wire mesh having mesh openings sufficient to allow the cleaning media 14 to pass through, while collecting ammunition casings 12. Like collections trays 140 and 140′, collection tray 150 includes a tray frame 152 and a screened bottom 154. Again, screened bottom 154 is constructed of a stainless steel wire mesh having mesh openings sufficient to allow rinse waste 16 to pass through, while collecting the cleaning media 14.
Separator assembly 170 includes a rotating separator basket 172, drive shaft 176, drive motor 178 and a gear box 179. Separator basket 172 is a filtering vessel into which the tumbled mixture of ammunition casings, cleaning media and fouled soapy water is initially deposited. Separator basket 172 is a rectangular box formed from a hollowed frame (not numbered) and having screened sidewalls 173 and a removable side panel 174. Screened sidewalls 173 are constructed from a stainless steel wire mesh having openings sufficient to allow cleaning media 14 to pass through, but retain ammunition casings 12. Removable side panel 174 is detachably mounted to basket 172 to provide access to the interior of the basket. As shown, side panel 174 is a removable panel connected to the body of separator basket 172 by any conventional methods, such as pins, cotter keys or fasteners as desired and appropriate. Alternatively, side panel 174 may be hinged to the body of separator basket 172 and locked in the closed position by similar pins, keys and fasteners. Separator basket 172 is suspended between side panels 112 within housing interior 111 above collection trays 140 and 150 for longitudinal rotation about a drive shaft 176. Shaft 176 extends through bearing blocks 177 mounted to side panels 112 and is operatively connected to motor 178 by a gearbox 179. Motor 178 drives shaft 176 to turn separator basket 172 inside housing interior 111. Motor 178 is activated by a switch on control box 198 connected to an electrical power distribution box 196.
Rinse assembly 180 includes a plurality of spray nozzles 182, a manifold 184, a supply line 188 and a shutoff valve 186. Supply line 188 is adapted to connect to any available water source, such as a conventional water tap. Typically, shutoff valve 186 is a conventional ball valve, which controls the flow of water into manifold 184. Shutoff valve 186 is mounted to the outside of the opposite side panel 112 from motor 178 and control box 198. Manifold 184 is mounted to top panel 118 inside housing interior 111. Spray nozzles 182 are fitted to manifold 184 to spray water into housing interior 111 and onto separator basket 172.
Generally, heater/blowers 190 are conventional electric space heaters, but in certain embodiments may be purpose built units designed particularly for the application of the present invention. Heater/blower 190 includes a motor driven fan (not numbered) and a heating element (not shown). The fan and heating elements are of conventional design and well known in the art. Heater/blower 190 is mounted to rear panel 116 on brackets 192 and positioned directly over rear planel opening 117. Heater/blower 190 is electrically wired to control box 198 and power distribution box 196. The motor driven fan and heating element of heater/blower 190 is activated by a switch on control box 198. When activated, heater/blower 190 blows heated air through screen 131 in rear panel opening 117 into the housing interior and directly into separator basket 172. The heated air flow from heater/blower 190 also circulates through collection trays 140 and 150.
One skilled in the art will note that the separator/dryer of this invention provides significant advantages over conventional equipment and processes used to prepare ammunition casing for reload. The separator/dryer of this invention is particularly useful for preparing ammunition cleaning in tumblers with reusable stainless steel rod shot. The separator/dryer allows for the convenient recovery of the stainless steel rod shot, although it can be used to recover all types of cleaning media. The separator/dryer combines the functions of rinsing, drying and separating the casings from the cleaning media within a single device, which significantly reduces the time and labor required for preparing ammunition casings for reload and recovering reusable cleaning media, such as stainless steel rod shot. The separator/dryer can be scaled to accommodate varying batch sizes by increasing the size and scale of the housing, the separator basket, the number of spray nozzles and heater/blowers as needed.
It should be apparent from the foregoing that an invention having significant advantages has been provided. While the invention is shown in only a few of its forms, it is not just limited but is susceptible to various changes and modifications without departing from the spirit thereof. The embodiment of the present invention herein described and illustrated is not intended to be exhaustive or to limit the invention to the precise form disclosed. It is presented to explain the invention so that others skilled in the art might utilize its teachings. The embodiment of the present invention may be modified within the scope of the following claims.
This application claims priority from co-pending U.S. Provisional Patent Application Ser. No. 62/052,108 filed on Sep. 18, 2014, which is hereby incorporated by reference.
Number | Date | Country | |
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62052108 | Sep 2014 | US |