Abstract: A drum magazine for loading paintballs and shaped projectiles into a magazine-fed firearm includes a spiral feed track that stores paintballs as well as a projectile feed assembly that pushes paintballs through the spiral feed track. Paintballs exit the spiral feed track through a feed port and through a modular feed adapter that is inserted into a paintball marker. A clock spring and a spring rotor are utilized in order to adjust the pressure that is exerted on paintballs within the spiral feed track. Tension in the clock spring may be increased to a desired level by rotating the spring rotor to wind the clock spring. Paintballs are prevented from loading when the drum magazine is not loaded into a paintball marker by a locking assembly. A ratcheting gear engages a gear locking pawl while the drum magazine is not loaded, preventing the clock spring from becoming unwound.

Abstract: A device for planting seeds in the ground having an inlet orifice via which an airstream transporting seeds arrives, an outlet orifice via which the seeds are planted in the ground and a separating device. The separating device includes a grating which lies substantially in the continuation of the airstream and seed inlet orifice so that a maximum of the air escapes through this grating and the seeds are held back.

Abstract: The present invention relates to a device for planting seeds in the ground, comprising an inlet orifice via which an airstream transporting seeds arrives, an outlet orifice via which said seeds are planted in the ground and a device for separating said seeds from the airstream that transports them.

Abstract: A disk colter has a main disk for making a furrow in the ground. A secondary disk keeps the furrow open over a long enough distance that one or more seeds can be deposited. A support member supports the disks which are mounted so that they can rotate freely and are inclined in such a way that their peripheries meet in a region where the disks are closest to each other. This region is located at a bottom front part of the colter. On the main disk and/or the secondary disk, there is a plugging member intended to plug, at least in a vicinity of the region, a slot between the main disk and the secondary disk so that earth and/or plant debris are prevented from accumulating between the disks at least in the region.