Although all of the above mentioned patents achieve their intended purpose, they do so only satisfactorily.
There are three disadvantages to all of these designs.
Primarily, they fail to completely eliminate jamming (and hence do not eliminate the
root cause of the problem).
Secondly, all are designs that still rely on gravity to effectively deliver paintballs to the breach of the paintball marker as the agitating devices only partially prevents jamming.
In the sport of paintball, a hit on the marker counts as a hit on the player, thus the added height profile is a
disadvantage.
Thirdly, relying on gravity to deliver paintballs to the breach introduces an obvious limitation.
It is also incapable of effectively feeding paintballs up through a feed tube against the force of gravity and is therefore still partially dependent on gravity.
Furthermore, should a paintball break within the
loader during use, cleaning out the feed mechanism is not easily accomplished.
While the loading device of U.S. Pat. No. 5,816,232 does impart a directional force on the paintballs via a horizontally mounted rotating
paddle wheel which forcibly engages paintballs, this force is insufficient to feed the paintballs reliably against the force of gravity.
Although this particular
loader effectively feeds paintballs without the aid of gravity, it has four key limitations.
This particular design will not function on any other marker and thus has limited functionality.
Another major drawback with this design is speed.
By virtue of its many mechanical linkages it is not capable of the
rapid rate of fire demanded by tournament players.
It is also limited in capacity, and must have additional compartments added to accommodate more paintballs.
Lastly, like many of the previously mentioned designs, it is very difficult to clean out both on and off the field.
Lastly, it also suffers from being difficult to clean out during play should a paintball break within its internals.
Although this design would appear to be effective in feeding paintballs at a reasonable rate to the marker, it has some inherent flaws.
Firstly, due to the size of the
paddle wheel the frontal area is quite large, presenting an enlarged target to an opponent.
Secondly, the internals are arranged such that should paintball breakage occur while in use, it would be virtually impossible to effectively clean during game time, since tournament style paintball games rarely last more than 15 to 20 minutes.
The need to wind the spring up to the point that more than one ball could be fed means that an excessive amount of force may be applied to the paintballs within the feed tube.
This increases the likelihood of breakage.
Repeated operation under this mode can easily wear a motor out due to
heat stress in the armature windings and heat fatigue of the commutators.
While appearing at first to be an adequate solution to feeding paintballs against the force of gravity, it becomes apparent upon closer investigation that there are three primary deficiencies with this design.
This method of operation is not particularly reasonable, as nearly all modern paintball markers have extremely short trigger travel, often less than 1
millimeter.
The primary deficiency in this dependency is that there is an elevated risk of a paintball rupturing.
Finally, as with other hopper designs, the intricacy of the feed members are such that a ball breakage within the loader during game time would be very difficult to clean out without hindering a player's ability to contribute effectively to their team's efforts.
While this device allows for the feeding of paintballs into a paintball marker without the assistance of gravity, there are two main disadvantages in the design.
First, the device requires a marker capable of driving the
cam indexing mechanism.
No mainstream marker designs currently on the market are designed for any loading device in particular.
Secondly, since it must be loaded prior to game commencement, once the supply of paintballs are depleted it is virtually useless, as the time required to reload it would prevent the user from actively participating in the game.
Finally, like many other designs, the internal design of the drive mechanism is not conducive to quick cleaning should a paintball break during game time, making the device difficult to use for the duration of the game.