Abstract: The present invention discloses a new landscape edging system in which multiple adjacent edging sections are interconnectable prior to inserting stakes. An edging section is provided. A first transition extends from one end and a second transition extends from the opposite end. A first slot extends to the midpoint of the first transition. A second slot extends to the midpoint of the second transition. A connector extends outwardly from each transition. Each connector has an upper and lower tab. The first slot receives the second transition of an adjacent edging section as the second slot receives the first transition of the adjacent edging section. This interlocks the edging sections together. As interlocked, the upper and lower tabs on the connectors form a rectangular structure for receiving a V-shaped stake. Stake tabs on the stake engage the upper tabs top secure the edging system to the soil.

Abstract: A new cement valve is disclosed for use in the production of an oil or gas well where hydraulic fracturing has been employed. In particular, the embodiments include a cement valve having a reclosable valve. When properly located, a first piston sleeve is hydraulically actuated to open the cement ports on the tool. After the cement has been pumped through the tool and the cement ports to a wellbore annulus, a blocking ball is dropped to stop flow through the tool. The tool is internally pressurized. The pressure overcomes shear pins to force downward movement of a ball housing inside the cement valve. This movement translates a travelling pin along a guide path, which rotates a ball valve inside the ball housing, releasing the blocking ball to open up the internal flow path through the cement valve at the same time the cement ports are closed.

Abstract: A new cement valve is disclosed for use in the production of an oil or gas well where hydraulic fracturing has been employed. In particular, the embodiments include a cement valve having a reclosable valve. When properly located, a first piston sleeve is hydraulically actuated to open the cement ports on the tool. After the cement has been pumped through the tool and the cement ports to a wellbore annulus, a blocking ball is dropped to stop flow through the tool. The tool is internally pressurized. The pressure overcomes shear pins to force downward movement of a ball housing inside the cement valve. This movement translates a travelling pin along a guide path, which rotates a ball valve inside the ball housing, releasing the blocking ball to open up the internal flow path through the cement valve at the same time the cement ports are closed.