Abstract: A safety locking mechanism for weapons that have a trigger and a protective trigger guard. The mechanism includes a housing defining an internal space and a lateral opening through which a slidable spring biased plate protrudes and is brought out in a parallel and space apart relationship with another plate that is rigidly mounted to the housing. A headed post and a separated and removable body member are mounted to the fixed plate and receive the trigger inbetween. The body member conforms to the space between the rear of the trigger and the guard thereby immobilizing it. A locking assembly inside the housing is selectively actuated to release a latch that holds slidable plate inside. The slidable plate and the rigid plate sandwich a trigger and trigger guard to prevent access thereto.

Abstract: A firing pin locking mechanism that can be used on firearms. Controlled by a key, the internal locking device blocks all movement of the firing pin assembly striker, rendering the firing arm from discharging. The mechanism primarily comprises a spacer sleeve and a slide cover key plate. Utilizing the key, the authorized user has the ability to set the firearm in a “unlocked” or “locked” mode, even while in a holster. The internal locking mechanism is utilized as a means to prevent the movement of a firearm's firing pin assembly when activated by the trigger mechanism, regardless of the status of the firearm. The present invention is primarily utilized with semi-automatic firearms that have an enclosed striker assembly.

Abstract: A controller using rectified AC voltage to drive a DC motor. A first rectified produces a waveform that passes through zero voltage in synchronization with the A.C. supply voltage. The first rectified voltage is applied to the D.C. motor. A second rectified voltage produces a waveform that passes through zero voltage in synchronization with the A.C. supply voltage. A circuit generating a unipolar waveform output voltage drives a switch that turns on and off the connection of the first rectified voltage to the D.C. motor. The on time can vary from zero to one half of the period of the AC voltage for maximum speed. The switching is synchronized with the unipolar waveform. The time on is varied by varying the pulse width driving the switching device.

Abstract: A foldable chair that includes a back assembly that is rigidly mounted to a vertical wall and a hingedly mounted seat assembly movable between two extreme positions. One of these positions being parallel to the back assembly and the other one perpendicularly thereto. A latch assembly is provided to releasably keep the seat assembly firmly attached to the back assembly in one of the extreme positions. A supporting assembly is pivotally mounted to the underside of the seat assembly. The supporting assembly includes a pivotally mounted frame member and a leg member mounted at a predetermined angle that is slightly greater than ninety degrees to prevent the leg member from slipping back towards the seat assembly when load is applied to the latter. When the seat assembly is brought to the vertical extreme position adjacent to the back assembly, the frame member protrudes to provide a cooperative grip for a user.

Abstract: An engagement mechanism for dental prostheses that include supporting pins with headed terminations and implant and/or abutment members with cooperative sockets. A dental implant firmly mounted to a user's bone is provided at the distal end with a socket defining a cavity of cooperative dimensions to receive the headed termination. The headed termination is firmly kept in the cavity. In this manner, better utilization of the limited inter dental space is achieved. One way of securing the headed termination is by using a cementitious compound to bind the headed termination. Another way is to use an O-ring to secure the headed termination. The socket can be positioned directly in the distal end of an implant member or in an abutment.

Abstract: A brush with a handle that includes a pivotally mounted female engagement member at one end of the handle. This end of the handle includes a fork termination with two separated elongated members that have each a flat opposing surface with radially disposed recesses therein. An elongated termination of the female engagement member cooperatively and snugly fits between the surfaces. The elongated termination includes cooperating ribs that permit a user to keep the female engagement member at a predetermined angle with respect to the handle. And the female engagement member is removably coupled to a mating male engagement member that includes a bristle gripping assembly. A user can then paint with the brush without causing the pivoting female engagement member to move by the strokes up to a predetermined magnitude.

Abstract: A flexible disposable spout removably mounted to the inwardly extending flanges found in certain types of cans, particularly paint cans, to ensure that its contents are properly poured out and no contact is made with the can itself. The spout has a cylindrical or frustoconical shape with two ends. At least one of the ends has two parallel and peripherally extending ridge members that are kept at a predetermined spaced apart relationship with respect to each other to cooperatively engage with the inwardly extending flange defining the can opening. The other end may be designed to also accept the same type of inward flange for an opening of a different size typically associated with a can of a different capacity or the same capacity with different opening dimensions. Thus the spout's cylindrical portion has a frustoconical shape.

Abstract: A holder for marker pens that keep the latter readily available for use while providing a relatively sealed compartment that prevents or minimize the circulation of air around the tip of the pen. The housing has slanted walls that provide structural stability to the holder when it holds one or more pens. An opening in the housing includes upper and lower cavities with a slanted portion inbetween acting as a seal for the end of the tubular housing of a pen. As step in the lower cavity further reduces its diameter ensuring the further isolation of the pen's tip thus protecting from the frying action of circulating air. Portable embodiments for use with a user's belt permit ready access to pens for an ambulatory user. One of these embodiments includes a removable pen holder member.

Abstract: A system for generating water with predetermined amount of ozone dissolved and minimum entrained ozone. The system includes the use of an entrained gas separator assembly in series with the recirculating plumbing feeding and discharging ozone enriched water. The novel entrained gas separator assembly allows the water with dissolved ozone to pass through while extracting the entrained ozone for subsequent use or destruction. The entrained gas separator includes a secondary tank with an off gas valve for releasing the entrained gases including ozone. A cylindrical member with a helicoidal wall and centrally perforated tube defines a helicoidal path that forces the water down allowing the entrained ozone to pass through. The ozone concentration is kept within predetermined levels with the use of an ozone analyzer mounted close to the outlet of the holding or contact tank, as well as a number of sensors and bypass valves that are computer controlled.

Abstract: An improvement for trimmers of the type that include an elongated main handle member with a motor assembly on one end and a cutting head at the other end. A secondary retractable handle member is pivotally mounted at one end to a point on the main handle member that is adjacent to the cutting head so that maximum control can be exerted on the positioning of the latter. The retractable handle member is preferably made to conform to the shape of the main handle member when brought next to it. A securing latch assembly releasably keeps both of them attached to each other when desired by a user, typically, to operate on horizontal cutting planes. The retractable handle member is not separated when a user desires to make vertical cuts.

Abstract: A multi-application hat capable of being configured for different functions, such as a handbag, and hat styles. The crown portion includes a removable top member that doubles as a handbag with an internal pocket and a zipper member at its opening. A strap member facilitates its use by permitting a user to carry it over his or her shoulder and a clip permits the removal mounting and unmounting of the top member/handbag to a user's belt. The brim portion is flexible and has cooperative fastening members to bring its edge towards the crown portion for different styles.

Abstract: A device for base sheet fasteners used in conjunction with nail gun. The nail gun includes main and security triggers that a user has to simultaneously activate while lifting and dropping the nail gun. A slidable spring loaded longitudinal member is pushed back in line with the housing of a receiving assembly causing a leg to activate the safety trigger. This allows a user to place a base sheet fastener onto a magnetic hammer while the hammer is in the retracted position and upon dropping the nail gun, the magnetic hammer automatically strikes the surface thereby nailing the base sheet fastener in a safe and efficient manner. The resulting device permits the continuous installation of base sheet fasteners on a surface. A substantially cylindrical assembly is provided with a longitudinal cutout with cooperative dimensions to receive the base sheet fasteners.

Abstract: A stent to be used in angioplastic procedures including a parabolically extending support member; and several hyperbolic transverse members. The parabolically extending support member includes several through openings through which the hyperbolic transversed members are mounted. In the contracted state, the main branch and both secondary branches extend parallel to each other. When expanded, the stent defines two secondary branches and one main branch. The junction of the two secondary branches are protected in the same fashion as a pair of pants or a horse saddle.

Abstract: The present fiber reinforced cellular concrete is produced through a chemical reaction that does not require high heat or pressure ovens (autoclaves). Among its unique features, is the fact that different compression strengths can be obtained by varying the proportion of ingredients and resulting densities. The concrete utilizes a base of a pozzolanic product with aluminum powder, calcium carbonate, calcium formate, cement, and polypropylene fiber is added, along with water. Optionally, sand and compatible reinforcing material can also be added.

Abstract: An apparatus for facilitating sexual relations with minimum movement by suspending a partner at controllable parallel and spaced apart relationship with respect to another partner resting on a flat cushioned surface. A cable assembly with several cables are cooperatively tied at one end to the suspended platform supporting one of the partners and the other end wound by spool members included in a motorized spool assembly. The activation of the motorized spool assembly brings the platform up and down. A reciprocating movement is also applied to the suspended platform, and all of these movements are controlled by a circuit that includes hard-wired or remote inputs.