Abstract: A pipe is disclosed. The pipe may comprise an inner wall, an outer wall coupled to the inner wall and including a plurality of corrugation crests and a plurality of corrugation valleys, and a plurality of slits positioned within the corrugation valleys, wherein the slits may be evenly spaced relative to each other around an entire circumference of the pipe.

Abstract: An adjustable coupler is disclosed for interconnecting leaching chambers to create a serpentine pathway for a leaching field. A coupler can connect a first leaching chamber and a second leaching chamber. The coupler can comprise a mating feature and an adjustment feature. The mating feature can be used to mate the coupler between the first leaching chamber and the second leaching chamber. The mating feature can include a swivel connector matable to an end of one of the chambers. The adjustment feature can adjust the angle between the first chamber and the second chamber between a range of angles. The adjustment feature can include a swivel connector. The range of angles can be particularly chosen to be about 45°. More particularly, the range of angles can be about 22.5° in either the clockwise or counter-clockwise direction.

Abstract: A lightweight, easily portable, convertible billboard display has three panels rotatably connected to each other in parallel fashion. The billboard display can be used as a vertically standing three panel display or, when two of the panels are connected by a removable connection component, as a three dimensional triangular display. Informational display items can be removably attached to the display panels. In addition, pockets, variously located within each panel, allow for the insertion and display of and full access to multi-page display items, mounted directly on the billboard display.

Abstract: An annular gasket for affecting a watertight seal between two sections of corrugated pipe. The gasket comprises a seating portion dimensioned to fit within an annular recess in one of the mated sections of corrugated pipe, and a sealing portion integrally molded with the seating portion. The sealing portion includes a first shoulder portion, a second shoulder portion, and an arcuate surface extending between the first and second shoulder portions. The mass of the seating portion is less than the mass of the sealing portion.

Abstract: This invention provides computer systems and methods for providing centralized employee stock plan administration. The systems and corresponding methods provide the display of an administrator's dashboard interface screen including therein an administrator's dashboard interface that provides at least one metric according to user's entitlement. The metric associated with at least one employee stock plan of a company may be processing statistics for workflow requests, processing statistics for reporting requests, plan activity for particular employee stock plans, and plan statistics for particular stock plans.