Patents Examined by David W. Westphal
  • Patent number: 4753020
    Abstract: A dryer, especially for wood, has at least two drying chambers separated from each other by at least one partition wall, at least one fan in each of the drying chambers, and at least two connection passages for the reciprocal connection of the drying chambers. Each of the connection passages can be constricted or blocked off by blocking devices. To properly convey drying agent to where it is to be used, a fan is mounted in at least one of the drying chambers connected together by the connection passages, is associated with one connection passage, and is arranged directly adjacent to the connection passage. The blocking device includes a flap on one side only. When the flap is closed, it forms a part of the side wall of one connection passage. The flap is arranged directly in front of and in the conveying direction of the fan, such that, when it is open, it forms a deflector for the drying agent conveyed by the fan.
    Type: Grant
    Filed: July 12, 1985
    Date of Patent: June 28, 1988
    Assignee: Hilderbrand Holztechnik GmbH
    Inventor: Reinhard Brunner
  • Patent number: 4741258
    Abstract: A defroster air vent arrangement is provided for uniformly distributing the air flow discharged from a defroster onto motor vehicle windshields which defroster air vent arrangement allows for adequate defrosting of the entire windshield in an open and in a partially closed positioning of the defrosting device. The vent arrangement is formed with a defroster nozzle connected to an air distributor housing. A defroster nozzle is provided with a wall web dividing the defroster nozzle into air guiding ducts of unequal cross-sectional areas and the air distributor housing is provided with an adjustable covering device providing for a selectively independent regulation of the flow of the defroster air into the air distributor housing and through to the windshield.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: May 3, 1988
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventors: Hans Trube, Klaus Arold
  • Patent number: 4736529
    Abstract: A device for the uniform application of gas on a plane surface comprises several slot-like openings which are at least approximately in one plane; the longitudinal axes of the nozzle openings are radially arranged, whereas the direction of the flow exiting from the slot-like openings is inclined towards the plane in which the openings are located. This allows an extremely uniform application so that the difference between the maximum and the minimum values of the heat-transfer coefficient is only very small.
    Type: Grant
    Filed: January 28, 1986
    Date of Patent: April 12, 1988
    Inventor: Carl Kramer
  • Patent number: 4734998
    Abstract: A method and apparatus for same are provided to dehydrate a toxic chemical waste sludge to a powder by an internal heat source and to deposit said powder into a container, said apparatus receiving said sludge from a holding tank hopper having means for wiping said sludge into an auger, said auger serving to feed sludge to said apparatus, and said apparatus having an internal auger to move said dry powder to a storage container.
    Type: Grant
    Filed: January 6, 1986
    Date of Patent: April 5, 1988
    Assignees: Jimmy Wells Needham, Joseph Needham, Jack Newton Needham
    Inventors: William F. Lee, Roy E. Grubbs
  • Patent number: 4735130
    Abstract: Fresh air make-up apparatus for a furnace located in an enclosed building comprises an elongated diffuser housing positioned adjacent the furnace, with the housing having an inlet in communication with fresh outside air and a pair of outlets, one being connected to the cold air return of a forced air furnace at a point substantially upstream of the heat exchanger, and the other outlet leading to the room. The outlet leading to the cold air return provides fresh make-up air for the building, while the opening leading to the room provides both a means for diffusing and preheating the fresh air supplied to the cold air return and a means for providing fresh air diffused with warm room air to the combustion in the combustion chamber of the furnace. The apparatus also includes a removable filter for removing contaminants from the fresh air. The apparatus can include a heat exchanger for preheating the fresh air with warm air from the warm air duct of the furnace.
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: April 5, 1988
    Inventor: John W. Seppamaki
  • Patent number: 4735002
    Abstract: A surface-mounted hair dryer is described which contains a turbine as the motive power for the air flow, incorporates means for minimizing drawing moisture into the unit when it is being used in a humid environment, provides for automatic and positive means of turning the unit on and off and can optionally provide alternate modes of operation including heating of the air to greater or lesser degrees, use of the air blowing feature without the heating or variable speeds of the turbine and resultant differences in air flow rate.
    Type: Grant
    Filed: October 27, 1986
    Date of Patent: April 5, 1988
    Inventor: Robert J. Rath
  • Patent number: 4735131
    Abstract: A blow-out apparatus comprises a housing having a blow-out port, a plurality of guide members for adjusting the direction of the air flow blown out of the blow-out port of the housing, and a device for preventing the direction of the air flow flowing through the guide members from being disturbed by the air flow between the housing and the guide members adjacent the housing.
    Type: Grant
    Filed: January 29, 1987
    Date of Patent: April 5, 1988
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Yoshio Matsuno
  • Patent number: 4733479
    Abstract: Under the rated load amount of "Normal" and "Extra" drying degrees, a drying process carried out after the detections of the plurality of resistance values a passing time of at least one resistance value selected from among of the plurality of resistance values is predicted is carried out. The hot air operation time in accordance with the measured time is calculated, and the hot air operation during the calculated hot air operation time is carried out. When under the small load amount, a drying process is carried out in the form of a hot air operation by calculating a necessary time for "Damp" drying degree under a small load amount in accordance with a time for passing a predetermined resistance value after a lapse of a constant time from the start of drying operation. When one of "Semi", "Normal" and "Extra" drying degrees under the small load amount is selected, a hot air operation is carried out at a constant time according to the calculated time for "Damp" drying degree.
    Type: Grant
    Filed: October 24, 1986
    Date of Patent: March 29, 1988
    Assignee: Hitachi, Ltd.
    Inventors: Shinichi Kaji, Keiji Hikino, Shin Nakamura, Tsunetoshi Komatsu
  • Patent number: 4733478
    Abstract: This disclosure relates to a process for steam dewatering of brown coal, using a plurality of autoclaves, each of which, in cyclic sequence among the autoclaves, repeats a batch process comprised of an atmospheric pressure stage to unload the coal dewatered and to load the coal to be dewatered, a heating stage to heat and dewater the loaded coal and a depressurizing stage to lower the interior pressure for the unloading of coal, wherein the heating stage comprises first and second steaming steps successive in this order at the final period of this stage to be supplied with fresh steam from an external source, and an initial steaming step under which the autoclave is connected with the other autoclave undergoing the second heating step, thereby intensifying the steam ventilation at the second heating step.
    Type: Grant
    Filed: October 6, 1986
    Date of Patent: March 29, 1988
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Takao Kamei, Fuminobu Ono, Keiichi Komai, Takeshi Wakabayashi
  • Patent number: 4733481
    Abstract: An improved paint bake oven (10) of a modular construction is disclosed as including a convection heating module (12), exhaust modules (64), and a radiant drying module (80). The heating module (12) includes outer and inner housings (14) and (16) as well as an upper central supply plenum (20) and a central upper return plenum (28) that cooperate to provide efficient gas flow to painted products being baked upon passage through the heating module. Each exhaust module (64) is connected to an associated heating module so as to receive and exhaust gas therefrom to the environment. The radiant drying module (80) is located upstream from the heating module (12) and includes an outer insulated housing (84), an inner housing (86) having side passages (92) located on opposite sides of a product passage of the drying module (80), and a heater (96) that supplied heated gas to the side passages (92) to provide radiant heating that initially dries the painted products.
    Type: Grant
    Filed: May 19, 1986
    Date of Patent: March 29, 1988
    Assignee: Gladd Industries, Inc.
    Inventor: Gordon F. Hubbert
  • Patent number: 4730551
    Abstract: A heat distributor for equalizing the temperature gradient of a room. A housing is supported on a gridwork of a suspended ceiling. Warm air from near the ceiling is drawn through a perforated panel and an air filter mounted in the housing. An electric fan directs the warm air downwardly through a baffle having a conical flange to form a column of warm air which is directed to the floor. A rotatable, perforated disk has wedge shaped walls to compress the air and direct the column of air to a targeted area below. A source of ultraviolet radiation is installed in the housing to sterilize the warm air.
    Type: Grant
    Filed: November 3, 1986
    Date of Patent: March 15, 1988
    Inventor: Walter W. Peludat
  • Patent number: 4730977
    Abstract: A plurality of openings are provided in a stationary wall of a gas turbine engine aft of the compressor discharge to admit compressor discharge air into a sealed cavity formed between the stationary wall and the rotor of the gas turbine engine. A valve, biased to an open position, is associated with each of the openings so that under low speed conditions some of the compressor discharge air is admitted to the cavity to provide supplementary axial force on the rotor in one direction to prevent crossover under such conditions. Under higher speed conditions the increase in compressor discharge pressure overcomes the force biasing the valve to its open position, thereby causing the valve to close and terminate flow of compressor discharge air to the cavity, terminating the aforementioned supplementary axial force on the rotor.
    Type: Grant
    Filed: December 31, 1986
    Date of Patent: March 15, 1988
    Assignee: General Electric Company
    Inventor: Frederic G. Haaser
  • Patent number: 4729292
    Abstract: An improved air vent (10) comprises a frame mounted from folded sheet metal, incorporating air dampers (23,24) in the bottom thereof and a plurality of square grills (21) located on supports (18,20) at the upper extremities of the frame. The frame includes four walls (11,12,13 & 14) which form a housing, and this housing is divided by barriers (16,17) into a number of chambers through which air passes. Each chamber has a grill (21) covering its upper opening and a pair of dampers (23,24) which adjustably control air flow through the chamber. Each grill 21 has a plurality of angled louvres 22 which divert the air to one side as it passes through the grill and the direction (A) in which the air is diverted is altered by rotating the grill within the housing. In this way different grills within the assembly may divert air flow through each grille (21) is adjusted by its respective dampers (23,24).
    Type: Grant
    Filed: October 29, 1986
    Date of Patent: March 8, 1988
    Assignee: Atlas Air Australia Pty. Limited
    Inventor: Lewis Marton
  • Patent number: 4727796
    Abstract: A weather cap for upstanding exhaust pipes for gasoline and diesel engines and the like having an improved mechanism for securing the cap to the pipe. The mechanism comprises an elongated post to extend from the upper edge of the exhaust pipe into the pipe, with a resilient strip spring secured to the post so that the strip string bears against the interior of the pipe thereby securing the cap in position on the pipe.
    Type: Grant
    Filed: October 28, 1986
    Date of Patent: March 1, 1988
    Inventor: W. George Derkach
  • Patent number: 4724750
    Abstract: A double-walled chimney comprising inner and outer concentric pipes providing an annular insulating space between them is made up of coaxial end-to-end inner pipes surrounded by concentric, coaxial outer pipes. The inner pipes meet at a junction transverse or radial to the basic axis and are interconnected by an inner, annular ring. The outer pipes stop axially short of meeting so that an annular gap exists that exposes or opens to the junction of the inner pipes. Circumferentially spaced apart spacers are secured to the inner ring and project outwardly as well as axially in opposite directions to engage the outer pipes to keep the latter spaced outwardly from the inner pipes and further to stabilize the outer pipes axially. An outer band connects the outer pipes together and functions also to close the gap between the outer pipes and thus to complete the insulating space at the outer pipe gap.
    Type: Grant
    Filed: December 4, 1986
    Date of Patent: February 16, 1988
    Assignee: Van-Packer Company
    Inventors: Karen A. Coleman, Bob D. Oberg, Gary L. Reinback, Robin L. Rediger
  • Patent number: 4723363
    Abstract: The process utilizes a volatile organo halosilane, such as trimethylchlorosilane, injected through a mass flow controller into a deposition, or like, reactor to dry the mass flow controller, transfer lines and injectors, the deposition surfaces and reactor walls, the exhaust manifold, and vacuum pump and oil.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: February 9, 1988
    Assignee: Motorola Inc.
    Inventors: Christian A. Seelbach, William M. Ingle, deceased
  • Patent number: 4719707
    Abstract: The conveying apparatus for a flat article, particularly a cardboard blank, paper sheet or the like, comprises two driven endless belts running over guides positioned opposing each other between which the article is clamped during transport. The endless belts are guided on base surfaces of beds of the guides having a wavelike longitudinal cross section in the conveying direction with a plurality of wave troughs and peaks. A plurality of lateral supporting members are attached to each of the beds. The wave crests of one of the guides are positioned staggered with respect to the wave crests of the other guide and opposing the wave troughs of the other guide. Furthermore the endless belts are either elastic in the conveying direction or a tension provider is mounted engaging each of the endless belts.
    Type: Grant
    Filed: June 18, 1986
    Date of Patent: January 19, 1988
    Assignee: Jagenberg Aktiengesellschaft
    Inventor: Hartmut Klapp
  • Patent number: 4720238
    Abstract: A method of interfacing mechanical and concrete components of a pump comprising a concrete volute entails simultaneously placing two metal rings in recesses provided in a suction orifice and in a well of the volute of the pump. This is done using a jig having two molding surfaces spaced from each other by a predetermined axial distance and placed at a position near the rings. Each of the rings is embedded in a hardenable resin which is molded by the two molding surfaces on the jig. This forms two annular resin blocks having molded surfaces. These molded surfaces are used as respective support surfaces for a sealing ring and for a cover in which the rotor of the pump is rotatably mounted.
    Type: Grant
    Filed: January 14, 1987
    Date of Patent: January 19, 1988
    Assignee: Bergeron, Societe Anonyme
    Inventor: Jean-Pierre Daux
  • Patent number: 4719708
    Abstract: The invention relates to an arrangement in drying sections intended for drying web material (2) which is arranged for movement through the drying section while supported by a plurality of air streams which impinge on the undersurface of the web and which extend parallel with, or substantially parallel with a plane allotted to the web, each of these air streams being given an exiting velocity and direction, via nozzle-like exit apertures (11, 11a) formed in a blow box (7), such as to maintain the web (2) in a suspended state above the blow box (7). Arranged in that end-part (8) of a blow box through which a flow of supply air (7a) is introduced thereinto is a means (20) operative in reducing and/or eliminating and/or over-compensating the influence of the velocity vector (7a') of the flow of supply air (7a) on the direction in which the air streams exit from the blow box through nozzle-like exit apertures (11,11a) formed therein and located adjacent the end-part (8) of the blow box.
    Type: Grant
    Filed: December 31, 1985
    Date of Patent: January 19, 1988
    Assignee: Flakt AB
    Inventors: Sven I. Karlsson, John B. Rudolfsson, Rolf K. Pettersson, Nicola Nenow
  • Patent number: 4719706
    Abstract: Apparatus for expelling and/or withdrawing moisture from, or for admitting moisture to, a running web of paper or textile material has rolls which define one or more nips for the running web and at least one of which has a stack of washer-like funnel-shaped absorbent discs compressed between two end walls one of which has an outwardly bulging frustoconical surface and the other of which has an inwardly bulging frustoconical surface. The discs surround a core of stainless steel and their density in the region of the core is highest due to the provision of funnel-shaped elastomeric inserts which surround the core and whose thickness decreases in a direction from the core toward the external surface of the roll. Such roll renders it possible to operate with a stack of discs whose hardness at the periphery of the roll is relatively low in spite of a substantial nip pressure, or to operate with a very pronounced nip pressure at a given hardness in the region of the peripheral surface.
    Type: Grant
    Filed: April 24, 1986
    Date of Patent: January 19, 1988
    Assignee: Kleinewefers Textilmaschinen GmbH
    Inventor: Wolfgang Tschirner