Abstract: A firearm magazine cover is disclosed for encircling a firearm magazine. The firearm magazine cover comprises a sleeve defining a front wall, a primary side wall, a secondary side wall, and a rear wall extending between an upper edge and a lower edge. An upper aperture is in the upper edge of the sleeve for receiving the firearm magazine. A lower aperture is in the lower edge of the sleeve for protruding the firearm magazine beyond the sleeve. The sleeve is constructed of an elastic rubber for defining a grasping collar. The grasping collar permits grasping the firearm magazine during engagement with the firearm and firmly grasping the firearm magazine during disengagement with the firearm.

Abstract: A pedal sound modification device is disclosed for varying an electrical signal. The device includes a plate pivotably coupled to a base. A slide potentiometer is coupled to the base and has a slider arm slidably engaging a linear potentiometer. The linear potentiometer extends between proximal slide end and a distal slide end. A linkage rod is pivotably coupled to the plate and the slide potentiometer for displacing the slide arm relative to the linear potentiometer upon a pivoting displacement of the plate relative to the base. The plate contacts the base for defining a proximal slide arm stop and positions the slide arm immediately adjacent to the proximal slide end for preventing damage to the slide potentiometer. The plate contacts the base for defining a distal slide arm stop and positions the slide arm immediately adjacent to the distal slide end for preventing damage to the slide potentiometer.

Abstract: There is disclosed a meanderline loaded antenna formed by applying a conductive ink or other conductive material to a flexible substrate. The substrate is then shaped by removing regions and folding other regions along perforated or scored lines to fit the antenna within the available space of a wireless device. In lieu of folding regions of a planar substrate to form a three-dimensional structure, the substrate can be vacuum formed over a mandrel after the antenna elements have been formed thereon. The antenna can also be formed by printing on existing enclosure surfaces of a wireless device or on the surfaces of components within the device. Thus the advantages offered by a meanderline antenna where the effective electrical length is greater than the actual physical length are achieved in conjunction with a space-saving physical structure for the antenna.

Abstract: There is disclosed a meanderline loaded antenna comprising a ground plane, a non-driven vertical element affixed thereto, a driven vertical element and a shaped top radiating element conductively connected between the driven and non-driven vertical elements. One or more segments or regions of the top plate are resonant depending on the input signal frequency. Since top plate presents several such segments or portions, several different resonant frequencies (a band of closely spaced resonant frequencies or multiple bands of disparate resonant frequencies) are presented to the antenna driving signal, thus allowing the antenna to resonate at several different frequencies and bands. In another embodiment, the antenna comprises a plurality of top radiating elements in parallel spaced relation or in a single plane, wherein each top radiating element is resonant at a different frequency, when considered with the effective lengths of the other antenna elements.

Abstract: There is disclosed a meanderline loaded antenna formed by applying a conductive ink or other conductive material to a flexible substrate. The substrate is then shaped by removing regions and folding other regions along perforated or scored lines to fit the antenna within the available space of a wireless device. In lieu of folding regions of a planar substrate to form a three-dimensional structure, the substrate can be vacuum formed over a mandrel after the antenna elements have been formed thereon. The antenna can also be formed by printing on existing enclosure surfaces of a wireless device or on the surfaces of components within the device. Thus the advantages offered by a meanderline antenna where the effective electrical length is greater than the actual physical length are achieved in conjunction with a space-saving physical structure for the antenna.

Abstract: There is disclosed a meanderline loaded antenna comprising a ground plane, a non-driven vertical element affixed thereto, a driven vertical element and a shaped top radiating element conductively connected between the driven and non-driven vertical elements. One or more segments or regions of the top plate are resonant depending on the input signal frequency. Since top plate presents several such segments or portions, several different resonant frequencies (a band of closely spaced resonant frequencies or multiple bands of disparate resonant frequencies) are presented to the antenna driving signal, thus allowing the antenna to resonate at several different frequencies and bands. In another embodiment, the antenna comprises a plurality of top radiating elements in parallel spaced relation or in a single plane, wherein each top radiating element is resonant at a different frequency, when considered with the effective lengths of the other antenna elements.