Abstract: Flame arrestor to cover aircraft engines made up of one ventilation wire grid (6), one upper metallic plate (9) where wire grid sits (6) on the edges of a circular hole (10) and a wall (25) which is located next to a chamfer (26) placed at the edge of a central hole (5) existing in the platform (3). On the lower side of the thin composite wall (25) there is a flange cylinder formed by a disc (15) a cylindrical ring (14) coinciding in height with the chamfer (26), creating an interior cavity (27) where gases are conducted and accumulated. All these elements are joined together by some bolts (22) that go through them and finish with a lower metallic plate (12) and an octagonal shaped part (19) separated by a specific distance established by the appropriate elements like bushing or spacer.

Abstract: A device for switching between two inlet ports in a skimmer submerged in a body of water so that the latter can be cleaned (filtered) from two different areas. A conventional skimmer has first housing with a filter basket mounted therein and a second housing mounted within the first housing below a cover assembly centrally mounted within the first housing. A vertically movable piston assembly movable within the second housing and with an upright elongated tubular shaft that slides through a shaft opening in the cover activates a valve when the piston approaches its uppermost position closing one of the two inlet ports in the cover. The speed at which the piston assembly moves upwardly to close the first inlet is regulated with a restricting valve at the upper end of the tubular shaft. The result being to change the active inlet ports allowing the cleaning of the body of water from two inlet locations.

Abstract: A trim assembly (20) having a longitudinally extending housing (21) that is mounted against a structure or wall (W) adjacent to a movable garage door (D). The housing includes a longitudinal bay (22) in a first longittudinally extending wall (27). A longitudinally extending sealing member (30) is removably mounted to the bay (22) at one longitudinally extending side (32) thereof and the distal longitudinal side (34) of the sealing member coacts with the garage door (D) to provide a sealing slidable engagement thereon. The sending member (30) is made out of resilient material such as rubber. A longitudinal slot (28) is provided on a second wall (23) of the housing (21) opposite the first wall. The first wall including cooperating through openings (26) aligned with the slot to permit fastening members (40) to go through.

Abstract: An apparatus and method for delivering power from a D.C. voltage source to one or more D.C. loads rated at lower voltages. The invention provides for the repetitive application of the higher D.C. voltage to the loads for a predetermined time period sufficient for the load to operate yet not too long to ensure that the load will not be damaged. To implement the invention, a clock signal provides the time reference for separate slots allocated for the time periods associated with each of the loads. A user selectively enables or interrupts the repetitive connection to each of one of the loads. The rate of repetition of the connection of the high voltage source could vary from 60 to 200 Hertz, preferably without degrading the operation of typical loads.

Abstract: Process for transforming the residues left after tanning without chroming and the products thereby obtained, based on the process of homogenizing (2) the raw material (1), which consists of the leftovers of the tanning industry, such as remnants of skin with hair, trimmings, suede, etc. A mineral acid (3) is added to the mixture, as are semi-metals and metals (4) with a valency of 0, phenol and phenolate (15). The mixture is put in a pressure vessel (5) and is filtered (6) to separate the liquid portion (7) and the solid part (9), which can be neutralized (10) or treated with micro organisms (13). This process is intended to be used in the leather and fur industry as well as in agriculture.

Abstract: A display assembly (10) capable of being converted from a display configuration to a wheelbarrow configuration. Multiple arrangements of sub-assemblies in each of the configurations provide flexibility to a user in setting up these displays. The display assembly (10) includes a base assembly (20) that keeps an elongated supporting assembly (60) in upright position. The elongated supporting assembly (60) comprises four elongated supporting members (61) releasably locked to each other. The base assembly (20) includes at least two cooperating supporting frame members (22) that support at least one tray assembly (80). At least two arm assemblies (40) are perpendicularly mounted to elongated supporting members (60) to support additional tray assemblies (80). Additional trays (80) are supported by the arm assemblies (40). These components are stored and transported by the invention when transformed into a wheelbarrow configuration with wheel assemblies (70) at one end (79) of elongated supporting member (61).

Abstract: A window assembly for garage door panels. The assembly includes an outer frame assembly that overlaps the panel opening to be protected and it is mounted thereon. An inner frame assembly co-axially extends from the outer frame assembly and jointly define a window area. A longitudinal slot along one of the elongated members defining the inner frame assembly permits a user to removably mount a transparent member therein. Ornamental frame assemblies can be optionally mounted over the present invention to enhance the aesthetics of the resulting structure. An alternate embodiment includes a second transparent member positioned within the outer frame assembly through another elongated slot in one of the elongated frame members. Internal channels in the frame members bite into the edges of the transparent members.

Abstract: A block system that includes a block with slanted walls on its edges forming longitudinal grooves to receive cement without introducing separations or spaces between abutting blocks. A base alignment tool is used to guide the blocks of the first row to ensure proper alignment. The base alignment includes a longitudinal extending sheet with spaced apart lateral walls for receiving the blocks inbetween. A row leveling tool is used to keep in alignment two blocks in different contiguous rows and separated. An elongated rigid member interconnects two bracing members attached to separated blocks in contiguous row.

Abstract: A louver assembly for semi-circular, non-perfect or imperfect arch frame assemblies with louvers rotably mounted therein. A tensioning mechanism keeps the louvers taut between an arched frame member and a smaller anchorage frame member. An actuating mechanism is used to rotate the louvers upon the application of a predetermined force to a chain that coacts with teethed sprockets coupled with hooked clip members that removably hold the louvers. In this manner, the louvers are rotated between two extreme positions.

Abstract: A system for monitoring the speed and location of a vehicle over a given area by using a global positioning system and comparing the position fix and speed against a computerized map for the area containing predetermined limits for the speed and territory over predetermined times and days of the week. If a limit is exceeded the position fix and speed information is stored along with the time when it took place. The stored information can be optionally transmitted to a remote location for further processing. Also, alarm circuits are provided inside the vehicle to selectively alert the occupants that a limit has been exceeded.

Abstract: A machine for processing envelopes includes a receiving assembly with a tray where envelopes are received and guided towards an envelope cutting assembly. A sensor determines the width of the envelope to align on of the two longitudinal cutting members. Another sensor detects the leading and railing edge of the envelope and with a circuit control the advancement of the envelope to cooperative positions that permit another cutter member to act transversally. The envelope is then passed to an unfolding assembly where the uppermost and lowermost sheets are loose and sandwich inbetween the contents. The uppermost sheet is pulled out to the display assembly that is hermetically closed. Subsequently, a transversally moving roller is used to lift the folds of the content, if any, and to affix the unfolded contents to protruding pins. The engagement with the protruding pins is slowly undone as the contents are pushed towards the display assembly.

Abstract: A hinge assembly for garage doors with relatively loose tolerance for the leaf assemblies and the central supporting member. A sleeve is rotably mounted over the supporting member and a folded portion of the leaf assembly journals the sleeve for a substantially frictionless linkage. The sleeve is made of a self-lubricating plastic material to reduce noise.

Abstract: A window frame for an opening closure having an outer and an inner frame assembly that sandwich a transparent member and a skin or panel with an opening. The outer and inner frame assemblies include each two vertical frame members are kept at a spaced apart and parallel relationship with respect to each other and two horizontal perpendicularly mounted to the vertical frame members. The outer frame members include longitudinal internal channels with a T-shape cross-section defining a wider innermost portion cavity and a narrower neck portion. The innermost portion slidably receives nuts that cooperate with a fastening member to securely mount the outer frame members, transparent member, panel and inner frame members, with fastening members therethrough. None of the hardware is visible from outside the closure.

Abstract: A pillow with a retractable umbrella, comprising a pillow assembly with first and second ends. The first and second ends have a channel extending therebetween. Fixedly secured onto the first end of the pillow assembly is a supporting assembly with third and fourth ends. The supporting assembly has a cavity between the third and fourth ends to store items within, and has a removable end-cap to access the cavity. Extending from the supporting assembly is an umbrella assembly. The umbrella assembly lying within the channel in a stored position. The instant invention having rotating and swivel means for positioning the umbrella assembly while in an erect position. The invention may be stored in a case for easy carrying and in an open position, allows a user to lay his/her head on the pillow while covering their face from sunlight.

Abstract: A method for manufacturing bodyboards and surfboards and the article of manufacture resulting therefrom. The method includes cutting a board form a block to a predetermined shape and dimensions. For surfboards, a spine member is longitudinally mounted between the two halves of the board. Reinforcement members are mounted longitudinally and transversally along the board blanks. Then, a sheath member is prepared and the block is received therein when the former is expanded. Subsequently, the sheath is contracted by cooling it down. The trapped air is flushed out and folds eliminated.

Abstract: A window assembly for garage doors with hingedly mounted panels. The assembly includes resilient male and female frame members that are brought towards each other to sandwich the borders of the door panel defining the window opening and the cooperatively dimensioned transparent panel. The male frame member includes, adjacent to its peripheral inner end, a peripherally extending leg member that is lockingly received within a cooperative channel notch on the transparent panel. The engagement of the leg member to the channel member permits certain deformation to be transmitter to the resilient male and female frame members. Fastening members are used to keep the male and female frame members securely against each other.

Abstract: A window assembly for garage doors having an opening with cooperative dimensions to receive a transparent panel with a reduced surface on one side and a peripheral flange making the outer surface larger than the internal surface. The underside of the peripheral flange member comes in abutting contact with the panel's external surface to which it is glued. An external frame member is mounted over the peripheral edge of the external side of the transparent panel. An internal frame member is mounted over the peripheral edge of internal surface. Fastening members are used to keep the transparent panel member in place.

Abstract: A brake system for garage doors including a piston assembly movable within a longitudinal housing assembly and including a central through opening and a threaded bushing rigidly mounted to the piston assembly. A threaded axle is cooperatively received by the threaded bushing so that the rotation of the axle causes the piston assembly to move at a predetermined speed longitudinally within the housing assembly. Longitudinal connecting apertures permit the flow of fluid adjacent to the ends of the piston assembly to flow through. A flapper valve assembly is mounted to one of the ends of the piston assembly by a separating spring member. When the movement of the piston assembly exceeds a predetermined magnitude, the spring member is compressed eliminating the clearance and closing the connecting apertures. This prevents any additional flow and rotational movement of the threaded axle, which in turn is mechanically connected to the counterbalance axle of an opening and closing mechanism for garage doors.