Patents by Inventor Harvey S. Friedman

Harvey S. Friedman 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).

  • Patent number: 5063476
    Abstract: A modularized air-impingement cooling apparatus is provided for removing heat from integrated circuit components mounted to a circuit board configured for insertion into a computer backplane. In general, pin-fin designed heat sinks are attached to the electronic components requiring heat removal. First and second baffle members are attached in spaced relation to the circuit board and to one another for defining adjacent inlet and exhaust plenums, with multi-jet nozzle arrays admitting air between the two. Walls surround the components to thermally isolate one component from another and to define pockets in flow communication with the exhaust plenum. An air-moving device is utilized to draw air into the inlet plenum which air is then directed through the nozzles to the components to remove heat therefrom and from the pockets, which spent air is then exhausted through the exhaust plenum.
    Type: Grant
    Filed: December 5, 1989
    Date of Patent: November 5, 1991
    Assignee: Digital Equipment Corporation
    Inventors: Talal T. Hamadah, Douglas N. Ryder, Harvey S. Friedman
  • Patent number: 5053920
    Abstract: A three-dimensional integrated power distribution and regulation apparatus for providing regulated power to a plurality of chips mounted on a module. The apparatus has a busbar mounted on the module, this busbar receiving high voltage power as an input. A plurality of power regulators are mounted on the busbar and are electrically coupled to this busbar. The power regulators are point-of-load regulators that receive high voltage power as an input and produce regulated power to the busbar. The busbar is electrically coupled to the chips and provides the chips with the regulated power. Heat and losses are reduced since the power regulators are mounted on the module, close to the chips themselves.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: October 1, 1991
    Assignee: Digital Equipment Corporation
    Inventors: Donald T. Staffiere, Harvey S. Friedman
  • Patent number: 4887147
    Abstract: A thermal package for electronic components, such as semiconducting chips, is disclosed. Each chip is connected to a printed circuit interconnect substrate by flexible Tape Automated Bonding leads, and a pliant foam pad is attached to the surface of each chip adjacent the printed circuit interconnect substrate. A heat spreader is attached to the major surface of each chip above the printed circuit interconnect substrate. The heat exchangers are mounted to a support plate that is disposed above the printed circuit interconnect substrate. An external heat exchanger is attached to the exposed major surface of the support plate. The heat spreaders are secured to the support plate so they are urged upwards against the external heat sink. Heat generated by the chips is conducted through the heat spreaders to the external heat sink. Conductors on the support plate and the heat sink are used to provide a voltage to the chips.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: December 12, 1989
    Assignee: Digital Equipment Corporation
    Inventor: Harvey S. Friedman
  • Patent number: 4319827
    Abstract: A method for assembling photographic processing systems of the type for advancing integral, self-processable film units to the exterior of a camera while simultaneously spreading a fluid processing composition in a uniformly thin layer between selected layers of a film unit. A number of processing rollers which comprise the system are provided with a partially textured surface by using an electric discharge machining process having predetermined conditions, and then a number of test processing systems are assembled with these rollers and other pieceparts randomly selected from lots of all other pieceparts which comprise the system. Characteristic film units are processed through the test processing systems, and the fluid layer thickness in each of these film units is afterwards measured and compared with a predetermined standard.
    Type: Grant
    Filed: October 3, 1980
    Date of Patent: March 16, 1982
    Assignee: Polaroid Corporation
    Inventors: Stephen W. Carter, Harvey S. Friedman, Irving S. Lippert
  • Patent number: 4298267
    Abstract: A roller assembly mounted in a housing of a camera and adapted to spread a processing liquid across an exposed film unit as it is being advanced between the rollers of the assembly so as to initiate the formation of a visible image within the film unit. A pair of wiper blades are mounted adjacent one of the rollers such that they may engage opposite ends of the roller, during passage of a film unit therebetween, so as to remove particulate material therefrom. The two wiper blades are integral parts of two members which also function to releasably hold a film unit by its end after it has moved out of engagement with the rollers.
    Type: Grant
    Filed: June 24, 1980
    Date of Patent: November 3, 1981
    Assignee: Polaroid Corporation
    Inventor: Harvey S. Friedman
  • Patent number: 4253757
    Abstract: A spread roller assembly including a housing and a pair of juxtaposed rollers for spreading a processing liquid across a layer of an exposed film unit so as to initiate the formation of a visible image therein. The ends of one of the rollers are mounted in a pair of movable bearings for enabling the roller to move toward and away from the other roller. Each of the movable bearings includes a film engaging member which moves into engagement with a trailing end of a film unit, as the latter moves out of engagement with the rollers, so as to releasably retain the film unit in engagement with a wall of the housing. A unique spring arrangement is provided which applies substantially all of its forces in a direction perpendicular to the axes of the rollers thereby substantially eliminating any adverse side forces being applied to the assembly. The support members for the rollers are adapted to be snap fitted to the housing.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: March 3, 1981
    Assignee: Polaroid Corporation
    Inventors: Harvey S. Friedman, Leon Rubinstein
  • Patent number: 4200382
    Abstract: An improved cylindrical processing roller is provided for use in a motor driven photographic processing apparatus of the type which spreads a fluid processing composition in a thin, substantially uniform layer between selected layers of integral type self-processable film units while advancing the film units to the exterior of a camera after they have been photoexposed. The improvement in the roller resides in a novel circumferential roller surface roughened by a method which utilizes a pulsed laser to form a plurality of microscopic craters in the surface. The cratered surface provides the roller with a high-friction characteristic for transporting the film units but is insufficiently rough to leave any visually perceptible marks on them.
    Type: Grant
    Filed: August 30, 1978
    Date of Patent: April 29, 1980
    Assignee: Polaroid Corporation
    Inventor: Harvey S. Friedman
  • Patent number: 4174164
    Abstract: In a photographic apparatus of the type which includes a pair of motor driven cylindrical processing rollers and a film advancing mechanism for consecutively transporting and processing a stacked array of flexible, integral type self-processable film units, an improved roller mounting arrangement is provided by which the cylindrical processing rollers are mounted with their axes of rotation crossed in a predetermined manner to operate in conjunction with a post-roller film deflecting plate to assure that the film unit's processing fluid is distributed over preselected portions of the film unit in a substantially uniform thin layer, the improvement operating to correct inherent nonuniformities in the thickness of the processing fluid layer which would occur if the rollers were not cross-mounted and the deflecting plate were not present.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: November 13, 1979
    Assignee: Polaroid Corporation
    Inventors: Harvey S. Friedman, Irving S. Lippert
  • Patent number: 4147425
    Abstract: An improved cylindrical processing roller is provided for use in a motor driven photographic processing apparatus of the type which spreads a fluid processing composition in a thin, substantially uniform layer between selected layers of integral type self-processable film units while advancing a film unit to the exterior of a camera after photoexposure. The improvement in the roller resides in a novel circumferential roller surface roughened by electrical discharge machining techniques to provide the roller with a high-friction characteristic for transporting the film units while being insufficiently rough to leave any visually perceptible marks on a film unit.
    Type: Grant
    Filed: May 1, 1978
    Date of Patent: April 3, 1979
    Assignee: Polaroid Corporation
    Inventors: Harvey S. Friedman, Irving S. Lippert, John W. Lothrop
  • Patent number: 4134655
    Abstract: A self-developing camera utilizes a fixed cam surface and a resilient deflector strip to introduce a local longitudinal bend in a film unit as it proceeds over a relatively short portion of a film processing path from the nip of a pair of processing rollers to an exit slot. The deflector strip is secured near the end of the cam surface adjacent the exit slot with a free edge positioned to intercept the film unit proceeding from the rollers across the cam surface. The strip itself deflects upon engagement with the film unit to exert a spring force that produces in the film unit the local longitudinal bending which enhances distribution of a fluid photoprocessing composition within the film unit over its entire image-forming photosensitive area and in a layer of generally uniform thickness.
    Type: Grant
    Filed: September 9, 1976
    Date of Patent: January 16, 1979
    Assignee: Polaroid Corporation
    Inventor: Harvey S. Friedman
  • Patent number: 4104669
    Abstract: In a photographic processing apparatus of the type including a pair of juxtaposed pressure applying members between which a self-processable type film unit is advanced to apply a pressure to the film unit to spread a viscous processing fluid in a thin layer between a pair of sheet elements of the film unit, a bimetallic strip is provided to sense ambient temperature and in response thereto apply a second pressure to the film unit as it is advanced between the pressure applying members to compensate for temperature induced changes in the fluid's viscosity which cause variations in the thickness of the processing fluid layer such that the bimetallic strip operates to maintain the thickness of the processing fluid layer substantially constant over a predetermined temperature operating range of the apparatus.
    Type: Grant
    Filed: April 15, 1977
    Date of Patent: August 1, 1978
    Assignee: Polaroid Corporation
    Inventor: Harvey S. Friedman
  • Patent number: 4020498
    Abstract: A fluid processing apparatus adapted to spread a processing fluid over a predetermined photosensitive area of a photographic film unit. The film unit includes a first image-recording sheet element that is secured in superposed face-to-face relation with a second image-receiving sheet element. The sheet elements are held together in this relationship by an external binding that is secured to the surfaces of the sheets and overlaps their longitudinal and lateral edges to define, in part, an exposure area of the film unit; the film unit thus arranged is adapted to be processed to produce a visible image as a processing fluid is distributed across the image-recording sheet element coextensive with the exposure area. The fluid processing apparatus includes a pair of rotatably mounted juxtaposed pressure applying rollers that are resiliently urged toward one another and are adapted to receive the film unit and spread the processing fluid between the sheet elements as it is advanced between the rollers.
    Type: Grant
    Filed: November 28, 1975
    Date of Patent: April 26, 1977
    Assignee: Polaroid Corporation
    Inventor: Harvey S. Friedman
  • Patent number: 4016578
    Abstract: Photographic apparatus for consecutively transporting and processing a cassette of self-processable film units. The apparatus includes an integrally molded plastic housing section having a film exit slot, a pair of rotatable pressure-applying rollers mounted therewith, and a specially contoured camming surface positioned intermediate the rollers and the exit slot to intercept a film unit as it emerges from the rollers and bend it toward the exit slot as it is being advanced to the exterior of the apparatus. The location of the camming surface and its contour are specially chosen to provide the film unit with a complex curvature after it emerges from the rollers to influence the distribution of a processing fluid being spread within it as it is advanced to the exterior of the apparatus.
    Type: Grant
    Filed: January 13, 1976
    Date of Patent: April 5, 1977
    Assignee: Polaroid Corporation
    Inventor: Harvey S. Friedman
  • Patent number: 4005446
    Abstract: A photographic apparatus for transporting and processing in consecutive fashion a stacked array of self-processable film units.
    Type: Grant
    Filed: January 13, 1976
    Date of Patent: January 25, 1977
    Assignee: Polaroid Corporation
    Inventor: Harvey S. Friedman