Abstract: Various embodiments of a muzzleloader firearm system are claimed and described.

Abstract: A muzzleloader firearm has a barrel with at least one lug retaining structure that includes an internal annular groove and an internal annular shoulder that is both adjacent the annular groove and positioned between the annular groove and the breech end of the barrel. Each annular shoulder is provided with lug entry cutouts, which are radially spaced about the shoulder. The firearm also has a breech plug that is provided with multiple lugs forming at least one discontinuous external shoulder. The lugs are spaced and sized so that they align with the lug entry cutouts. Preferably, the number of external shoulders on the breech plug match the number of internal annular grooves in the barrel. The breech plug is installed in the barrel by aligning the lugs with the lug entry cutouts, and then rotating the plug so that the lugs are no longer aligned with the lug entry cutouts.

Abstract: A fish net, comprising a frame, and a net, attached to the frame, and including a length measuring scale disposed on the net, configured to allow a user to determine a size of a fish held in the net by visually comparing the fish with the length measuring scale. In one embodiment the length markings include a zero point near the bottom of the net, with two coordinated scales sharing the zero point and extending in opposing directions therefrom, such that a user may visually determine the length of the fish by aligning the fish with the length scale, and adding the numeral designations which are aligned with opposing ends of the fish.

Abstract: A window covering for an oddly-shaped window includes a panel, having a flexible bottom edge, and a top edge attached at a top of the window. The panel is configured to be drawn upward by the bottom edge to uncover the window, and to lower to a substantially planar configuration to substantially cover the window. The bottom edge is configured to at least partly conform to a shape of the top of the window when drawn up thereagainst. At least two pull cords are attached to the bottom edge, and are configured to raise and lower the panel.

Abstract: A window covering for an irregularly-shaped window includes a panel, comprising accordion folds, configured to fold up at a base of the window, and to raise and unfold to a substantially planar configuration. A top edge of the panel is shaped to match a top shape of the window; and a pull cord is attached to the top edge, configured to raise and lower the panel. The window covering can also include an alignment device, extending between the base of the window and the top edge of the window, and a plurality of connectors, attached to alternating opposing folds of the accordion folds at a vertex thereof, and slidingly disposed along the alignment device, to retain a vertical alignment of the panel during raising and lowering.

Abstract: A removable sign support system for supporting a sign on the ground includes a substantially upright support post, configured to removably receive a sign post. The support post has a substantially horizontal base affixed to its bottom end, with a plurality of spikes downwardly extending from the base into the ground, and a lifting connection fixedly attached to the support post. A removal device is provided for removing the support post from the ground, and includes a moveable column having a bottom end configured to bear upon the top of the ground near the base of the support post, and a lever arm pivotally attached to the moveable column. The removal device is configured to pull the spikes upwardly out of the ground by engaging the lever arm with the lifting connection and applying a substantially upward force thereon.

Abstract: A point-to-point transit system for riders includes an elongate guideway, a plurality of autonomous vehicles disposed in the guideway, a plurality of selectively actuable rider access portals in the side of the guideway, and a control system, configured to automatically guide the vehicles within the guideway. The rider access portals are configured to allow ingress and egress of riders to the autonomous vehicles in the guideway. The control system is configured to allow each vehicle to travel between origin and destination locations that are independently selected by a rider.