Patents by Inventor Robert H. Laauwe
Robert H. Laauwe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5323902Abstract: A safety device for disposing of used hyposyringes employed by home health care professionals is described. A closure assembly permits discarding hyposyringes safely into a container without the danger of hand contact with contaminated surfaces of the safety device, even for objects stuck within the opening to the safety container. A liquid tight seal and liquid absorbent provides additional protection for the home health care professional during the transportation of the safety device after use. The overall design of the assembly permits one hand operation of the assembly.Type: GrantFiled: October 5, 1993Date of Patent: June 28, 1994Assignee: Scientific Concepts, Inc.Inventors: Harold J. Palmer, Robert H. Laauwe
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Patent number: 5100030Abstract: A fixture for fluid dispensing bags having lower portions with nozzles. The bags are used with the lower portions folded forwardly and the nozzles pointed downwardly. The nozzles form keys which differ for different groups of the bags. The fixture has a forwardly extending shelf for the lower portions of the bags and in which a hole is formed and an insert is positioned in the hole and has a nozzle hole forming a key hole fitted by the nozzles of only one group of the bags.Type: GrantFiled: May 24, 1990Date of Patent: March 31, 1992Assignee: Inopak Ltd.Inventors: Stanley L. Roggenburg, Jr., Robert H. Laauwe, John L. Polite, Michael Tully
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Patent number: 4823990Abstract: A dispensing device for a bag container a liquid, made of flexible material and forming upper and lower walls through which holes are formed for receiving the device, has a tubular lower part with a top flange which is sealed to the inside of the lower wall and depends through the hole in the lower wall. A tubular upper part has a top flange sealed to the inside of the upper wall and depends through the hole in that wall and is telescoped inside the lower part so as to move up and down in the lower part. The top of the upper part forms a piston such as a collapsible dome extending upwardly through the hole in the upper wall and exposed on the outside of the upper wall and therefore exposed on the outside of the bag. The lower part has a lower end having a self-closing valve and has at least one side port normally open to a space between the flanges and therefore between the bag walls.Type: GrantFiled: December 18, 1987Date of Patent: April 25, 1989Assignee: Essex Chemical CorporationInventors: Stanley L. Roggenburg, Robert H. Laauwe, John L. Polite, Michael Tully
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Patent number: 4823994Abstract: A closure for a bottle neck having a tubular upper portion internally having an upstanding post having at least one axially extending passage. The base has an upstanding portion having an external screw thread. The cap has a skirt rotatively surrounding the upper portion, and the skirt has at least one internal protuberance in screw threaded engagement with that screw thread. The cap has a closed top in which a hole is formed and which is closed by the upper end of the post formed by the base, the hole being closed by this upper end when the cap is screwed downwardly and opened when the cap is screwed upwardly.Type: GrantFiled: February 25, 1987Date of Patent: April 25, 1989Inventor: Robert H. Laauwe
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Patent number: 4747518Abstract: A dispensing device for a squeeze bottle has an internal continuously circular vent valve seat. A continuously circular elastic vent valve has one side seating on the seat and an opposite side exposed to the inside of the device. The device has a self-closing dispensing valve which opens upon squeezing the bottle. The device has a lock to prevent unintentional opening of the dispensing valve.Type: GrantFiled: December 2, 1986Date of Patent: May 31, 1988Inventor: Robert H. Laauwe
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Patent number: 4634022Abstract: A wall fixture containing a liquid dispenser, the fixture comprising a bracket having an upstanding plate from the bottom of which a shelf having a nozzle hole extends forwardly and a cover adapted to open and close in front of the plate and shelf, the dispenser comprising a flexible bag having front and back walls containing the liquid and having a main portion with its back wall suspended in front of the plate and a dispensing portion folded forwardly on the shelf so as to form a lower wall, the lower wall having a dispensing valve having a dispensing nozzle extending downwardly through the nozzle hole, and a depressible upper wall above the valve, the valve having an operator between the upper and lower walls and actuated by pressing the upper wall downwardly on the operator; the cover having a pressing arrangement for pressing a bulge in the bag's front wall and extending towards the bag's back wall at a position above the bag's dispensing portion and so as to form a passageway on at least one side of theType: GrantFiled: May 28, 1985Date of Patent: January 6, 1987Inventors: P. Joseph O'Halloran, Robert H. Laauwe, Stanley L. Roggenburg, Jr., Michael E. Tully
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Patent number: 4596157Abstract: A device for obtaining, transporting and dispensing a liquid specimen, has a tubular handle having a front portion and front and back ends, a body of liquid absorbent material positioned slidably in the front portion of the handle, and a rod having an end connected to the body and extending through the handle to and through the back end of the handle and having an actuating portion projecting from the back end of the handle for sliding the body forwardly to a projected position where the body is exposed beyond the front end of the handle for contact and absorption by the liquid specimen, and backwardly to a retracted position where the body is returned within the front end portion of the handle and radially enclosed by the handle for transporting the specimen, the body having substantially the same external transverse shape and dimensions as the inside transverse shape and dimensions of the front position of the handle and being substantially free from compression when slid to said retracted position, and theType: GrantFiled: July 2, 1985Date of Patent: June 24, 1986Inventor: Robert H. Laauwe
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Patent number: 4570827Abstract: A liquid dispenser includes a flexible bag, an enclosing box and an actuator. The bag is formed with two chambers, a supply chamber and a discharge chamber, and a hole through which the actuator moves. The discharge chamber has a discharge member which is acted upon by the actuator to dispense a measured discharge. The bag is suspended in the housing with the discharge chamber folded relative to the supply chamber.Type: GrantFiled: March 28, 1984Date of Patent: February 18, 1986Assignee: Essex Chemical Corp.Inventors: Stanley L. Roggenburg, Jr., Robert H. Laauwe
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Patent number: 4478356Abstract: A flexible-bag self-closing metering dispensing valve for a flexible bag containing a fluid product, has a collapsible dome with an entrance for the product, and a valve seat supported by spokes, below which a diaphragm is positioned with a hole having a periphery seated on the valve seat. The spider and seat and the diaphragm are mounted so they cannot be driven out by sudden depression of the collapsible dome.Type: GrantFiled: June 24, 1982Date of Patent: October 23, 1984Assignee: Essex Chemical CorporationInventors: Stanley L. Roggenburg, Jr., Robert H. Laauwe
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Patent number: 4415122Abstract: A right-angle spray-nozzle for a squeeze bottle is in the form of a one-piece body and utilizes only one velocity-increasing orifice, thereby avoiding the undesirably slow venting associated with a squeeze bottle having a high velocity jet of liquid that intersects with a second high velocity jet of air.Type: GrantFiled: July 14, 1981Date of Patent: November 15, 1983Assignee: Essex Chemical CorporationInventor: Robert H. Laauwe
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Patent number: 4314658Abstract: An elastic squeeze bottle which springs back to shape after collapse by squeezing, contains a viscous product and has a normally closed valve opened by the displaced product and which automatically closes again when the squeezing is terminated. So that air can enter the bottle to replace the displaced product, the valve has a permanently open package proportioned so that the air can be sucked into the bottle, but the passage being too small to permit the viscous product to gravitationally leak from the bottle through the passage.Type: GrantFiled: January 30, 1980Date of Patent: February 9, 1982Inventor: Robert H. Laauwe
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Patent number: 4262802Abstract: A molded plastic pill box has a lid hinged by a living hinge at one side of its top so the box can be loaded by a pill manufacturer, the lid when swing closed, permanently locking against reopening. The lid has a pill dispensing opening and a child-resistant closure hinged by a living hinge to the other side of the box top and normally closing the dispensing opening. The box forms a package for the pills and which can be sold by the pill manufacturer to a druggist, an adult purchaser being capable of opening the child-resistant closure for dispensing of the packaged pills. The entire box can be a one-piece molding for minimum cost.Type: GrantFiled: August 3, 1979Date of Patent: April 21, 1981Assignee: Essex Chemical CorporationInventor: Robert H. Laauwe
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Patent number: 4253609Abstract: A dispensing spray nozzle particularly adapted for application to a squeeze bottle containing a liquid product, comprises two interfitting parts integrally formed as a single plastic injection molding and including an integral hinge on which, after being injection molded with the hinge holding the two parts side-by-side, the parts can be swung together into interfitting relation so as to produce a finished assembly ready for use.Type: GrantFiled: January 30, 1979Date of Patent: March 3, 1981Assignee: Essex Chemical CorporationInventor: Robert H. Laauwe
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Patent number: 4230240Abstract: A dispensing valve, particularly adapted for a squeeze bottle containing a viscous product, has a valve head in the form of a thin flat wafer of small diameter stationarily supported as freely as possible from obstructions, and above it an elastically deflectable diaphragm having a central opening with a periphery that seats on the periphery of the wafer. Internal pressure causes the diaphragm to move slightly from the wafer during a dispensing operation. The diaphragm is dome-shaped and extends upwardly to form an externally ball-like applicator surface.Type: GrantFiled: July 17, 1979Date of Patent: October 28, 1980Inventor: Robert H. Laauwe
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Patent number: 4226342Abstract: A dispensing valve, particularly adapted for a squeeze bottle containing a viscous product, has a valve head in the form of a thin flat wafer of small diameter stationarily supported as freely as possible from obstructions, and above it an elastically deflectable diaphragm having a central opening with a periphery that seats on the periphery of the wafer. Internal pressure causes the diaphragm to move slightly from the wafer during a dispensing operation.Type: GrantFiled: December 15, 1978Date of Patent: October 7, 1980Inventor: Robert H. Laauwe
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Patent number: 4157789Abstract: A right-angle spray nozzle, intended for a squeeze bottle containing a liquid product with air above the product, provides for forming an aerosol spray from an orifice supplied by a swirl chamber having two tangential injection inlets separately fed by air and product respectively when the bottle is squeezed to pressurize the air above the product in the bottle. The spray is ejected in the form of an aerosol at right angles to the axis of the bottle.Type: GrantFiled: November 10, 1977Date of Patent: June 12, 1979Inventor: Robert H. Laauwe
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Patent number: 4126224Abstract: A pill box has a sliding cover for a bottom part having a rim on which an elastically compressible gasket is positioned, providing moisture-proofness. By a programmed squeezing together and sliding action the cover may be slid from the bottom part to gain access to the box's interior, the programmed actions making the box child-resistant. The gasket functions both as a seal and as a spring which keeps the cover and bottom part biased apart.Type: GrantFiled: November 3, 1977Date of Patent: November 21, 1978Inventors: Robert H. Laauwe, Stanley L. Roggenburg, Jr.
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Patent number: 4122979Abstract: A squeeze bottle containing a liquid product, such as antiperspirant and the like, has a dispensing nozzle internally forming a swirl chamber having opposed orifices each having its own inlet. One inlet is connected with a dip tube that dips into the liquid when the bottle is upright, and the other inlet connects with an air space above the liquid when the bottle is upright. When the bottle is squeezed, the swirl chamber receives opposed jets of the liquid and air, producing an atomized spray. When the bottle is inverted, the dip tube opens into the air space formed in the bottom of the inverted bottle, while the other inlet is connected with the liquid so that again opposed liquid and air jets enter the swirl chamber.Type: GrantFiled: April 20, 1977Date of Patent: October 31, 1978Inventor: Robert H. Laauwe
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Patent number: 4091966Abstract: A squeeze bottle containing a powdered product such as conventional talcum powder and the like, has a construction such that when the bottle is upright and the powdered product is compacted in the bottom, a carrier stream of air is introduced to the product when the bottle is squeezed, to break up the compacted product for discharge through a dispensing orifice with which the bottle is provided. When the bottle is inverted, the construction is such that again a carrier stream of air, when the bottle is squeezed, is discharged through a fed stream of the product for dispensing by the squeeze bottle.Type: GrantFiled: June 1, 1976Date of Patent: May 30, 1978Inventor: Robert H. Laauwe
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Patent number: 4057177Abstract: A valved squeeze bottle for viscous products has a valve comprising two plastic parts cooperatively forming a chamber into which the viscous product can be squeezed by squeezing the squeeze bottle, to elastically separate the parts which together form a sleeve valve opened by the separation of the parts and which recloses when the bottle squeeze pressure is released so the parts return, one of the parts forming a check valve permitting entrance of air into the bottle. The squeeze bottle and the valve parts are made of elastically deformable plastic which after being deformed, springs back to its original shape.Type: GrantFiled: January 18, 1977Date of Patent: November 8, 1977Inventor: Robert H. Laauwe