Abstract: Decorative wall panels are produced by providing mathematical formulae which define a contoured surface, and then cutting a portion of the defined surface into a board or boards. By defining a surface which has little or no repeats in the patterns defined in the surface (which can be done even for repeating functions by incorporating random number generators and/or conditional statements into the formulae defining the surface), and by cutting panels in accordance with different sections of the defined surface, panels may be produced which have little or no repeats and thereby have a highly customized and attractive appearance. Additionally, changes in panel designs may be accommodated without the need to generate new molds or dies.

Abstract: A trolling weight body of heavy metal has two angled front faces and a flat bottom and flat top with a full length vertical top fin and extending vertical tail fin. Attaching the downrigger line to a hole in the top edge of the top fin noses the front down slightly to cause the top flat surface to act as a diving/planning force to maintain the trolling weight directly below the downrigger rod for a true depth reading on the downrigger line. Visual, auditory, and sensory stimulations to attract fish are provided by intersecting cross holes through the trolling weight body and a series of loose rings with colored beads dangling from a series of vertical holes along the back edge of the tail fin.

Abstract: A bi-level test fixture for testing printed circuit boards is provided. A series of guide pins emanate downwardly from the diaphragm board through corresponding guide pin apertures present through the probe plate. Upon application of a full vacuum to the test fixture, the diaphragm board is drawn completely toward the probe plate thus extending the guide pins through their corresponding guide pin apertures. The portion of the guide pins below the probe plate engage with a pneumatically actuated fork member. Upon release of the vacuum to the test fixture, the upward travel of the diaphragm board is limited and at a distance so that only functional test probes are in contact with the unit under test. Application of a full vacuum again enables disengagement of the fork member with the guide pin to allow the diaphragm board to travel fully upward to its resting position for removal of the unit under test.