Abstract: The cutting head assembly object of the present invention comprises a trimmer line feed mechanism and a trimmer line winding mechanism. A lower cover member coupled to the housing member and has a central opening to hold a ground engaging button member. The ground engaging button member is rotationally engaged to the spool and a lower cover. The upper section of the ground engaging button member and the internal walls of the cover ring have radially and axially extending structures which cooperate with each other to provide a ratcheting and indexing mechanisms that allows controlled rotation of the spool which is constrained from axial movement relative to the head enclosure by biasing the force of a compression spring which also maintains the ground engaging member in an extended position.

Abstract: The cutting head assembly object of the present invention comprises a trimmer line feed mechanism and a trimmer line winding mechanism. A lower cover member coupled to the housing member and has a central opening to hold a ground engaging button member. The ground engaging button member is rotationally engaged to the spool. The upper section of the ground engaging button member and the internal walls of the cover ring have radially and axially extending structures which cooperate with each other to provide a ratcheting and indexing mechanisms that allows controlled rotation of the spool which is constrained from axial movement relative to the housing member by biasing the force of a compression spring which also maintains the ground engaging member in an extended position.

Abstract: A hold down clip for retaining one or more ceiling panels on lower flanges of a suspended ceiling tee and allowing removal of the ceiling panels from below after installation. The hold down clip includes at least one outward curved section with a crest between an upper end and a lower end. The clip elastically deforms to produce reactive spring forces when a ceiling panel engages a contact point below the crest of the outward curved section. The clip also includes at least one continuously formed latching section, which may extend from the upper end, lower end, or a transition point below the crest of the outward curved section. The latching section engages the grid tee to generate the spring force. Alternatively, the clip includes a fastener secured to the at least one outward curved section. The fastener is configured for threaded attachment to a receptacle of the grid tee.

Abstract: A wall and ceiling panel system which utilizes a concealed resilient beam for securing a panel to a wall or ceiling structure is disclosed. A wall and ceiling panel system having features of the present invention can comprise a panel configured for releasable attachment to a latching assembly. The latching assembly can comprise a resilient beam dynamically secured to a base bracket so as to allow the resilient beam to deflect relative to the base bracket during the panel installation and removal process. The panel can comprise a keyed flange having at least one locking slot configured to mate with the resilient beam, with the panel becoming secured to the latching assembly once the panel's key flange is mated with the resilient beam.

Abstract: The object of the present invention is a solar powered submerged lighting system that is self-contained, waterproof and provides underwater lighting during the nighttime. The system contains a solar cell array for charging a battery and electronic elements to control the transmission of the battery power towards a set of LED lights in the absence of solar light. The LED lights contain light projectors to improve the light penetration through the water body.

Abstract: A wall and ceiling panel system which utilizes a concealed resilient beam for securing a panel to a wall or ceiling structure is disclosed. A wall and ceiling panel system having features of the present invention can comprise a panel configured for releasable attachment to a latching assembly. The latching assembly can comprise a resilient beam dynamically secured to a base bracket so as to allow the resilient beam to deflect relative to the base bracket during the panel installation and removal process. The panel can comprise a keyed flange having at least one locking slot configured to mate with the resilient beam, with the panel becoming secured to the latching assembly once the panel's key flange is mated with the resilient beam.

Abstract: The present invention consist of an improved and very compact hand held pool debris removal system using a hydrodynamic water circulation device capable of producing significant water flow through a conduit. Such water flow is then used to lift and convey debris from bodies of water such as fountains, ponds and swimming pools. The device operates by creating a high speed water jet curtain using an external source of energy by means of pressurized water, which impinges on an steady body of water transforming the energy provided by the external water source into a strong flow capable of lifting and conveying light and heavy debris from the floor of bodies of water and forcing these debris into a fine mesh filter for retention and later disposal.

Abstract: The present invention consist of an improved and very compact hand held pool debris removal system using a hydrodynamic water circulation device capable of producing significant water flow through a conduit. Such water flow is then used to lift and convey debris from bodies of water such as fountains, ponds and swimming pools. The device operates by creating a high speed water jet curtain using an external source of energy by means of pressurized water, which impinges on an steady body of water transforming the energy provided by the external water source into a strong flow capable of lifting and conveying light and heavy debris from the floor of bodies of water and forcing these debris into a fine mesh filter for retention and later disposal.

Abstract: This invention is for a portable electronic device hanger, which is specifically designed to be wore as a necklace. The hanger is designed as compact as possible, lightweight and with easy accessibility to the electronic device, including an adjustable lanyard which is fully retractable to facilitate storage. The electronic device is easily attached or detached from the hanger.

Abstract: A two-cycle engine including exhaust, air inlet, scavenging and air/fuel intake windows disposed in the cylinder wall, a reciprocating piston driving a crankshaft, and curved gas-conveying channels connecting the crankcase chamber with the cylinder bore, the channels being opened by the reciprocating piston and the channels producing centrifugation of gases circulating therein to produce lean and rich components of an air/fuel mixture, wherein the lean component is circulated in a region of the combustion chamber remote from the exhaust window for promoting reduced combustion residues.

Abstract: A two-stroke internal combustion engine is provided. The engine includes a block defining a crankcase for enclosing a fuel mixture and a cylinder chamber formed at an end of a cylinder bore, an air passage in fluid communication with the cylinder bore, a scavenging transfer passage communicating between the crankcase and the cylinder chamber and having a primary transfer port in communication with a secondary transfer port, the secondary port having a first and a spaced-apart second window with a bridge spanning the space therebetween, and a piston slideably positioned in the cylinder bore and having a channel formed in a periphery of the piston and having a piston opening defined therein for providing selective communication between the crankcase and the transfer passage.

Abstract: A compact low emission, two-cycle, crankcase scavenged, spark ignited internal combustion engine with stratified scavenging is provided. The two-cycle engine including a cylinder block containing scavenging ports and a fresh air supply port. Said scavenging ports are formed as a blind pocket inside the cylinder walls. A piston having passages for alternatively communicating the transfer ports with the fresh air intake port and with a crankcase chamber in unison with the engine. By this method, the air trapped into the piston chambers creates an air mass, which is used as a buffer to evacuate the residual gases out of the cylinder chamber. This stratified “air head” substantially reduces raw fuel losses through the exhaust port, therefore, HC emissions are greatly reduced and fuel economy is enhanced.

Abstract: A compact low emission, two-cycle, crankcase scavenged, spark ignited internal combustion engine with stratified scavenging is provided. The two-cycle engine including a cylinder block containing scavenging ports and a fresh air supply port. Said scavenging ports are formed as a blind pocket inside the cylinder walls. A piston having passages for alternatively communicating the transfer ports with the fresh air intake port and with a crankcase chamber in unison with the engine. By this method, the air trapped into the piston chambers creates an air mass, which is used as a buffer to evacuate the residual gases out of the cylinder chamber. This stratified “air head” substantially reduces raw fuel losses through the exhaust port, therefore, HC emissions are greatly reduced and fuel economy is enhanced.

Abstract: A low emission two-cycle internal combustion engine for powering a portable tool is provided. The two-cycle engine comprising a cylinder block containing two parallel cylinders adjacent to each other receiving two reciprocating pistons. One cylinder in cooperation with the power piston, operates as the power source. The second cylinder in cooperation with the slave piston, operates as a volumetric fuel pumping system. Both cylinders centerlines lying in a plane perpendicular to a crankshaft. The cylinder block is disposed over an engine block containing the crankshaft and a crankcase. The two pistons are connected by a connecting rod to a common crankpin. The kinematics of this engine leads to a considerable advance of the slave piston in relation to the power piston, resulting in a significant higher pressure within the pump cylinder than into the power cylinder during the compression period. The combustion gasses are evacuated by pure air compressed into the crankcase through the scavenging ports.