Abstract: An electronics board including one or more precision alignment components including one or more layers. Each of the one or more layers includes a first planar surface and an opposing second planar surface and an alignment feature. The alignment feature can include a filled first recess defined within the one or more layers. The filled first recess can extend from the first planar surface toward the opposing second planar surface. The alignment feature can include a second recess, within the filled first recess. The second recess can extend through a fill material within the filled first recess. The fill material can be compatible with laser drilling.

Abstract: A wideband antenna array includes a wide angle impedance matching (waim) board, a manifold board including multiple tower receiving features and at least one conductive tower extending outward from the manifold board and received in a corresponding tower receiving feature. Each of the at least one conductive towers including at least one metalized component. The metalized component forms a circuit connecting the manifold board to the waim board. The waim board is adhered to a first end of the at least one conductive tower opposite the manifold board.

Abstract: An apparatus and method for soldering an electrical component to a circuit board includes a stage positioning the circuit board and electrical component in alignment with a solder tip along an axis. A first spring-loaded compression mechanism maintains contact between the circuit board and the electrical component, and a second spring-loaded compression mechanism brings the soldering tip into thermal contact with the circuit board and the electrical component such that solder disposed adjacent to the circuit board and the electrical component melts. When the second spring-loaded compression mechanism removes its applied force such that the soldering tip comes out of contact with the circuit board, the first spring-loaded compression mechanism maintains the contact between the circuit board and the electrical component while the solder cools and solidifies.

Abstract: An apparatus and method for soldering an electrical component to a circuit board includes a stage positioning the circuit board and electrical component in alignment with a solder tip along an axis. A first spring-loaded compression mechanism maintains contact between the circuit board and the electrical component, and a second spring-loaded compression mechanism brings the soldering tip into thermal contact with the circuit board and the electrical component such that solder disposed adjacent to the circuit board and the electrical component melts. When the second spring-loaded compression mechanism removes its applied force such that the soldering tip comes out of contact with the circuit board, the first spring-loaded compression mechanism maintains the contact between the circuit board and the electrical component while the solder cools and solidifies.

Abstract: A well cleaning tool including a tubular body, a cylindrical sleeve and at least one scratching element. The tubular body includes a threaded lower end for attaching to an end cap, and a plurality of first passages. The cylindrical sleeve is sized to receive the tubular body and includes a plurality of second passages such that the second passages are in alignment with the first passages. The at least one scratching element is preferably a rigid cable with frayed ends that is passed through the aligned first and second passages such that the frayed ends outwardly extend from an outer surface of the sleeve. Threading or tightening the tubular body lower end to the end cap will cause the first and second passages out of alignment, causing the rigid cable to crimp or pinch between the first and second passages, retaining the rigid cable in place.

Abstract: An herbicidal composition containing (a) florasulam and (b) at least one preemergent annual grass herbicide selected from the group consisting of dithiopyr and pendimethalin provides synergistic control of selected weeds in turf.

Abstract: A tool for finishing the aperture in the base of a cartridge case. The typical cartridge case has a cylindrical neck and the aperture is located on the axis that extends from the cylindrical neck. A pilot is provided on the shank of an aperture cutting tool coaxial with a cutter on the tool. A limit stop is provided above the pilot and the combination is adjustable and lockable at a desired position on the shank. The combination pilot and limit stop is positioned relative to the cutter so that as the pilot enters the neck, the cutter is guided into the aperture. The stop limit provides the exact amount of cutter entry for removing burrs but without enlarging the aperture.