Patents by Inventor Louis S. Hoffman
Louis S. Hoffman 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: 5027806Abstract: Improved, compact apparatus for use in inhaling pharmaceutical aerosols. The apparatus increases aerosol deposition to the bronchiolus while it limits deposition in the oropharynx. The volumetric flow rate is limited by the use of orifices in the far end of the rigid holding chamber. The invention is also designed to make it easy for the patient to inhale the medication at the proper point in his respiratory cycle. Besides the rigid holding chamber the apparatus of the invention utilizes a unique and compact integrated flow meter to deliver to the patient a volume of unmedicated ambient air before the inhalation of the medicine containing aerosol. When the apparatus is not in use, it folds up, so that some of the integrated flow meter apparatus, and the mouthpiece are located inside the rigid holding chamber thereby minimizing the size of the device.Type: GrantFiled: January 3, 1990Date of Patent: July 2, 1991Assignee: The Johns Hopkins UniversityInventors: Bart J. Zoltan, Beth L. Laube, George K. Adams, III, Clark F. Bow, Ralph J. Devito, Walter Harrington, Louis S. Hoffman, Charles B. Sanders
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Patent number: 4795059Abstract: The present invention provides a method and apparatus for continuous delivery of a liquid from individual liquid holding containers to a common discharge outlet. A bulk package is adapted to removably store a plurality of sealed liquid containers in predetermined positions within the package. The top surface of the package defines a plurality of openings for exposing the tops of the individual containers stored within the package. A removable lid includes a plurality of sharp discharge outlets or hollow spikes corresponding in number and disposed in alignment with the openings defined on the top surface of the package. The sharp discharge outlets extend from the lower surface of the lid, and are employed to puncture the openings in the individual containers stored within the package. The lid itself defines a hollow chamber providing a reservoir for receiving the flow of liquid from the individual containers.Type: GrantFiled: November 17, 1987Date of Patent: January 3, 1989Assignee: American Cyanamid CompanyInventors: Charles B. Sanders, Clark Bow, Ralph DeVito, Louis S. Hoffman
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Patent number: 4786005Abstract: The disclosure relates to an apparatus for dispensing sheet material such as paper towels. The dispensing apparatus when activated dispenses sheet material for a predetermined time which results in a predetermined length of sheet material being dispensed. The dispensing apparatus is actuated in response to the proximity of a portion of a hand of a user to the dispensing apparatus without the hand of a user contacting the apparatus. The dispensing apparatus dispenses sheet material from a roll of material by means of an electrical motor operating for a predetermined time to advance a predetermined length of the sheet material. The motor for advancing a predetermined length of the sheet material can be battery powered. The housing of the dispensing apparatus has a modular frame having a first compartment for the means for advancing the sheet material and a second compartment for the means for activating the advancing means.Type: GrantFiled: March 27, 1987Date of Patent: November 22, 1988Assignee: Scott Paper CompanyInventors: Louis S. Hoffman, William Bohmer, Ralph J. DeVito, Brian R. Langille, Richard D. Watkins, Charles B. Sanders, Martha E. Kerch, Marc Shanko
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Patent number: 4762124Abstract: A liquid dispensing pouch in which a support, a liquid impregnated pad, permeable membrane and cover layer are peripherally joined in a layered arrangement by adhesive or heat seal means. The layers are coextensive and the impregnated pad is contoured to provide enhanced liquid-holding capabilities. The liquid is dispensed by peeling off the cover layer and bringing the membrane surface into contact with the skin.Type: GrantFiled: October 28, 1986Date of Patent: August 9, 1988Assignee: Kimberly-Clark CorporationInventors: Martha E. Kerch, Louis S. Hoffman
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Patent number: 4722372Abstract: Electrical batteries are integrated with a disposable container of flowable material for powering a dispensing apparatus. The disposable container includes a deformable chamber for containing a predetermined quantity of material to be dispensed, and an electrically energized actuating member deforms the chamber for dispensing the flowable material. The dispensing apparatus is actuated by a photocell system which electrically energizes the actuating member in response to the proximity of a user to the dispensing apparatus without the user contacting the apparatus. The photocell system normally is inactive, and is rendered active by a sensor for detecting the proximity of a user to the apparatus.Type: GrantFiled: August 2, 1985Date of Patent: February 2, 1988Assignee: Louis Hoffman Associates Inc.Inventors: Louis S. Hoffman, William Bohmer, Ralph J. DeVito, Brian R. Langille, Richard D. Watkins, Charles B. Sanders, Martha E. Kerch
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Patent number: 4666099Abstract: The disclosure relates to an apparatus for dispensing sheet material such as paper towels. The dispensing apparatus when activated dispenses sheet material for a predetermined time which results in a predetermined length of sheet material being dispensed. The dispensing apparatus is actuated in response to the proximity of a portion of a hand of a user to the dispensing apparatus without the hand of a user contacting the apparatus. The dispensing apparatus dispenses sheet material from a roll of material by means of an electrical motor operating for a predetermined time to advance a predetermined length of the sheet material. The motor for advancing a predetermined length of the sheet material can be battery powered. The housing of the dispensing apparatus has a modular frame having a first compartment for the means for advancing the sheet material and a second compartment for the means for activating the advancing means.Type: GrantFiled: November 15, 1985Date of Patent: May 19, 1987Assignee: Scott Paper CompanyInventors: Louis S. Hoffman, William Bohmer, Ralph J. DeVito, Brian R. Langille, Richard D. Watkins, Charles B. Sanders, Martha E. Kerch, Marc Shanko
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Patent number: 4641923Abstract: Disclosed are field sensitive optical displays, and arrangements and methods for inducing fields in the displays and for scanning the displays. In the disclosed embodiments, liquid crystal, optoceramic and electroluminscent materials are utilized. Methods and arrangements for improving the response time of twisted nematic liquid crystal material and for generating color displays are also disclosed. Methods and arrangements are also disclosed for superimposing varying and a dc fields in field sensitive material. Various display patterns such as a movable dot, intersecting lines and a pivoting line can be obtained.Type: GrantFiled: June 25, 1984Date of Patent: February 10, 1987Assignee: Control Interface Company LimitedInventors: William Bohmer, Walter J. Betancourt, Louis S. Hoffman
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Patent number: 4599070Abstract: Disclosed are apparatus and methods for simulating a control system such as an aircraft flight control system. Image generating and display apparatus for use in conjunction with the simulated control system are disclosed. Also disclosed are apparatus and a method for simulating a movable control such as an aircraft control wheel or rudder pedals for a system in which force and movement parameters of the control can be varied in accordance with simulated operation of the system. A lever having an adjustably positioned fulcrum is utilized in the simulation of the movable control. The application further discloses a flight simulator having a pilot's console and an instructor's console interconnected by a computer. The simulator enables the pilot to "fly" an aircraft while permitting the instructor and computer to introduce various different flight and aircraft conditions into the flight simulator.Type: GrantFiled: July 29, 1981Date of Patent: July 8, 1986Assignee: Control Interface Company LimitedInventors: Walter Hladky, Ralph J. DeVito, Louis S. Hoffman
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Patent number: 4493531Abstract: Disclosed are field sensitive optical displays, and arrangements and methods for inducing fields in the displays and for scanning the displays. In the disclosed embodiments, liquid crystal, optoceramic and electroluminescent materials are utilized. Methods and arrangements for improving the response time of twisted nematic liquid crystal material and for generating color displays are also disclosed. Methods and arrangements are also disclosed for superimposing varying and a dc fields in field sensitive material. Various display patterns such as a movable dot, intersecting lines and a pivoting line can be obtained.Type: GrantFiled: April 1, 1983Date of Patent: January 15, 1985Assignee: Control Interface Company LimitedInventors: William Bohmer, Walter J. Betancourt, Louis S. Hoffman
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Patent number: 4440311Abstract: A moistureproof package comprising a container and lid characterized in that the lid is attached to the container by means of a primary hermetic seal and is provided with a secondary snap fastener for securing the lid to the container once it has been opened, and further characterized in that the container and lid frame are formed from a single sheet of material enough larger in area than that required to form the container to also form the lid frame.Type: GrantFiled: June 28, 1982Date of Patent: April 3, 1984Assignee: H. P. Hood Inc.Inventors: Louis S. Hoffman, Susan L. Kurlander
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Patent number: 4428458Abstract: A foldable ladder of the type having laterally spaced-apart, substantially vertically oriented front side rails joined by a plurality of steps. A rear support, preferably in the form of laterally spaced-apart, vertically oriented legs, are movable away from the side rails to open the ladder and movable toward the side rails to close the ladder. The side rails and rear legs include hinges intermediate vertical ends thereof for permitting vertical collapsing of the ladder by the folding of the side rails and rear legs about their respective hinges. A storage container, which also doubles as an article support when the ladder is used, also forms a part of the instant invention.Type: GrantFiled: May 28, 1981Date of Patent: January 31, 1984Assignee: Turbo Inc.Inventors: Joseph Fiore, Louis S. Hoffman
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Patent number: 4373636Abstract: The tray is provided with ribs across the base to provide air flow passages under a hot pizza pie or slice to prevent the pizza from becoming soggy. The ribs also serve to stiffen the tray. The wall of the tray may also be provided with vertical ribs. A ledge is provided to receive an imperforate cover and integral protuberances or flanges on the tray secure the cover in place. In one embodiment, the wall of the tray is sloped to facilitate removal of a pizza slice.Type: GrantFiled: February 18, 1981Date of Patent: February 15, 1983Inventor: Louis S. Hoffman
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Patent number: 4359852Abstract: A moistureproof package comprising a container and lid characterized in that the lid is attached to the container by means of a primary hermetic seal and is provided with a secondry snap fastener for securing the lid to the container once it has been opened, and further characterized in that the container and lid frame are formed from a single sheet of material enough larger in area than that required to form the container to also form the lid frame.Type: GrantFiled: August 25, 1980Date of Patent: November 23, 1982Assignee: H. P. Hood, Inc.Inventors: Louis S. Hoffman, Susan L. Kurlander
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Patent number: 4350263Abstract: A package comprising a container provided at its open top with a flange having portions of concave-convex configurations, a lid provided at the edge with a flange having portions of convex-concave configuration elastically interengaged with the concave-convex portion of the flange at the top of the container so as to mechanically lock the lid to the container and said lid being reinforced by a relatively stiff cover board die-cut to fit into the concave side of the flange at the edge of the lid and wherein portions of the flanges are united by sealing and a method of making the same.Type: GrantFiled: September 19, 1980Date of Patent: September 21, 1982Assignee: H. P. Hood, Inc.Inventor: Louis S. Hoffman
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Patent number: 4282679Abstract: An infant's toy with a hollow ball having openings disposed about its surface and having a freely movable insert trapped within the hollow ball, said insert provided with a pair of pivotally connected stems with a cage structure disposed at the end of each stem, each cage structure containing at least one loosely confined ball. The cage structures are readily movable in and out of the openings of the hollow ball but the insert is restrained from being removed from the hollow ball.Type: GrantFiled: November 20, 1979Date of Patent: August 11, 1981Assignee: Johnson & Johnson Baby Products CompanyInventors: Lawrence B. Grubb, Danny E. Simpson, Louis S. Hoffman, David M. Williams
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Patent number: 4079567Abstract: Moisture impervious packaging systems for retaining articles include a container body and a closure lid hingedly connected thereto. The container body includes a bottom wall and upwardly extending peripheral walls ending in an upper surface that defines an access opening into an interior compartment in which the articles are retained. The lid includes a peripheral frame member providing the side margins of the lid, and a separate moisture impervious sheet adhered to the frame member for providing the top wall of the lid. The moisture impervious sheet constituting the top wall of the lid preferably is also adhered to the upper surface of the container body for providing a primary moisture impervious seal for the interior compartment of the container body.Type: GrantFiled: September 20, 1976Date of Patent: March 21, 1978Assignee: Scott Paper CompanyInventors: Harry Spruyt, Louis S. Hoffman
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Patent number: 4061783Abstract: A thin, substantially flat packaged unit includes a thin, substantially flat utensil in a protective sheath. The protective sheath includes a flat rigidifying member of substantially the same thickness as the utensil and surrounding marginal edges of the utensil, and flexible sheet material overlying the utensil and adhered to the rigidifying member. In a preferred construction the utensil includes a substance that is interactable with a fluid, and the protective sheath encloses at least the section of the utensil including the substance.A method of forming a thin, substantially flat packaged unit including a thin, substantially flat utensil in a protective sheath from a thin, substantially flat substrate and flexible sheet material.Type: GrantFiled: November 17, 1975Date of Patent: December 6, 1977Inventors: Louis S. Hoffman, Robert B. McClosky
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Patent number: 4059478Abstract: A method and apparatus for bonding at least two films of resinous material such as polyester films to one another wherein at least a portion of one surface of one polyester film is placed contiguous with at least a portion of one surface of the other polyester films adjacent thereto. At least one layer of resinous material such as a layer of polyester is placed adjacent each of the other surfaces of the polyester films to be bonded and opposite the contiguous portions of the surfaces. The contiguous portions of the polyester films to be bonded are compressed against one another by pressure applied to the two outermost layers of polyester. The temperature of the contiguous portions along their interface is raised at least to a bonding temperature of the polyester by energy transmitted through the layers of polyester on each side of the two polyester films.Type: GrantFiled: March 10, 1976Date of Patent: November 22, 1977Inventor: Louis S. Hoffman
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Patent number: D264359Type: GrantFiled: May 30, 1980Date of Patent: May 11, 1982Assignee: Johnson & Johnson Baby Products CompanyInventors: Lawrence B. Grubb, Danny E. Simpson, Louis S. Hoffman, David M. Williams
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Patent number: D266101Type: GrantFiled: November 20, 1979Date of Patent: September 7, 1982Assignee: Johnson & Johnson Baby Products CompanyInventors: Lawrence B. Grubb, Danny E. Simpson, Louis S. Hoffman, David M. Williams