Abstract: A check valve comprising a body, a ball movable within a ball area of the body, a seat for receiving the ball, and a magnet for exerting a magnetic force on the ball is provided. The ball and seat are changeable between a closed state and an open state, the closed state having the ball in sealing engagement with the step, and the open state having a portion of the step separated from the ball with a space therebetween.

Abstract: A check valve comprising a body, a ball movable within a ball area of the body, a seat for receiving the ball, and a magnet for exerting a magnetic force on the ball is provided. The ball and seat are changeable between a closed state and an open state, the closed state having the ball in sealing engagement with the step, and the open state having a portion of the step separated from the ball with a space therebetween.

Abstract: A lubricator is provided which has a unitized body with at least one port in communication with the body's bore and its outer surface, to which port(s) connectors with different outer fittings for further connection to other equipment may be attached and sealed, and later detached and replaced with other connectors. The connectors may have different outer fittings or may be a plug or valve. This allows the connection of a single port to external equipment to be changed and the fitting for that external equipment's connection to be altered, without having to disconnect the lubricator from its well-head and stem or any of the lubricator's other connections.

Abstract: A fishing reel housing for attachment to a rod along a longitudinal rod axis. The housing has a shaft for accepting a central bore of a line dispensing spool and an adjustment mechanism for selectively adjusting the shaft in position transversely away from the rod axis while maintaining its position along the rod axis. The fishing reel housing includes an adjustable line retainer assembly which moves a line retainer radially outwardly from the shaft as the adjustment mechanism is selectively adjusted. A fishing reel comprises the adjustable line retainer and reel housing with a spool with a central bore mounted thereon.

Abstract: A catastrophic or heavy-hit indicator subassembly is included in a plunger lift system lubricator which includes a coil spring above a striker block, a piston above the striker block, the piston sealed but moveable within the bore of the subassembly, above the piston another spring or set of spring washers, a space, and above the space a thin membrane or wall in a top nut or seal at the top of the lubricator. If the plunger reaches the lubricator with sufficient force, it will compress the coil spring and move the striker block to push the piston upward within the bore of the lubricator, the piston will compress the second spring or set of spring washers, and the top end of the piston, which is preferably pointed, will pierce the membrane or wall in the top of the lubricator.

Abstract: A subassembly is provided which is designed so that two passageways in concentrically arranged tubing strings can be formed to provide a flow-path which in a first direction communicates with equipment at surface in an annular passageway then switches partway along the tubing strings' length in the well to the subassembly and is redirected to the core passageway, and back from the string's lower end up the annular space to the subassembly and is again redirected this time to the tubing's core passageway back to surface equipment; the two passageways being: the core passageway formed of the core tubing's inner volume; and the annular passageway formed of the annular space between the core tubing string and a concentrically surrounding second tubing string's inner surface; the subassembly forming a two-way cross-over between the two passageways at the same part of the string.

Abstract: A fishing reel housing for attachment to a rod along a longitudinal rod axis. The housing has a shaft for accepting a central bore of a line dispensing spool and an adjustment mechanism for selectively adjusting the shaft in position transversely away from the rod axis while maintaining its position along the rod axis. A fishing reel comprises the reel housing with a spool with a central bore mounted thereon. A fishing apparatus comprises at least one rod having a mount to support a fishing reel thereon with the reel mounted on thereon. A kit comprises the reel housing and at least one line dispensing spool having a central bore for mounting on the shaft of the fishing reel housing and may comprise one or more rods, lines and/or lures.

Abstract: A lubricator is provided which has a unitized body with at least one port in communication with the body's bore and its outer surface, to which port(s) connectors with different outer fittings for further connection to other equipment may be attached and sealed, and later detached and replaced with other connectors. The connectors may have different outer fittings or may be a plug or valve. This allows the connection of a single port to external equipment to be changed and the fitting for that external equipment's connection to be altered, without having to disconnect the lubricator from its well-head and stem or any of the lubricator's other connections.

Abstract: A fishing reel housing for attachment to a rod along a longitudinal rod axis. The housing has a shaft for accepting a central bore of a line dispensing spool and an adjustment mechanism for selectively adjusting the shaft in position transversely away from the rod axis while maintaining its position along the rod axis. The fishing reel housing includes an adjustable line retainer assembly which moves a line retainer radially outwardly from the shaft as the adjustment mechanism is selectively adjusted. A fishing reel comprises the adjustable line retainer and reel housing with a spool with a central bore mounted thereon.

Abstract: A fishing reel housing for attachment to a rod along a longitudinal rod axis. The housing has a shaft for accepting a central bore of a line dispensing spool and an adjustment mechanism for selectively adjusting the shaft in position transversely away from the rod axis while maintaining its position along the rod axis. A fishing reel comprises the reel housing with a spool with a central bore mounted thereon. A fishing apparatus comprises at least one rod having a mount to support a fishing reel thereon with the reel mounted on thereon. A kit comprises the reel housing and at least one line dispensing spool having a central bore for mounting on the shaft of the fishing reel housing and may comprise one or more rods, lines and/or lures.