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"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck? I pray you, excuse me, I have not the time to listen to such nonsense."
Napoleon Bonaparte ; When told of the Robert Fulton steamboat
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| Number | Title | Issue Date |
| 4501125 | Temperature conditioning system staging control and method A control for a multi-stage heating and cooling system used to temperature conditioning a comfort zone. The control includes a microprocessor responsive to a temperature sensor installed in the comfort zone. Heating and cooling setpoints and a lookup tabl... | 02/26/1985 |
| 4498220 | Method for pre-expanding heat exchanger tube This invention is a method for pre-expanding a heat exchanger tube prior to its insertion into a tube sheet. A tubular mandrel having an elastic bladder sheath sealed at each end is inserted into the tube and positioned at the point where the tube is to b... | 02/12/1985 |
| 4488855 | Main bearing lubrication system for scroll machine A system for lubricating the main drive shaft bearings in a scroll compressor enclosed within a hermetic shell. The drive shaft and its main bearings are supported in a frame that defines first and second chambers adjacent each end of a main bearing. Each... | 12/18/1984 |
| 4487028 | Control for a variable capacity temperature conditioning system A control for a variable capacity reciprocating compressor water chiller system. A microprocessor connected to monitor return and supply fluid temperature sensors in the system is programmed to vary the compressor capacity in response to the deviation of ... | 12/11/1984 |
| 4484452 | Heat pump refrigerant charge control system A microcomputer controlled charge control system for modulating charge in a heat pump refrigerant circuit. A charge receiver has its interior in thermal communication with the compressor suction line and has a single charge flow line connected via a charg... | 11/27/1984 |
| 4483156 | Bi-directional variable subcooler for heat pumps A bi-directional flow auxiliary heat exchanger is disposed in proximity to the outdoor heat exchanger of a heat pump. The auxiliary fin and tube coil is active in both the heating and cooling modes to subcool refrigerant fluid flowing from the condenser. ... | 11/20/1984 |
| 4478277 | Heat exchanger having uniform surface temperature and improved structural strength A plate-type heat exchanger having uniform surface temperature and improved structural strength is disclosed, which may be used as a structural support member for an object to be temperature controlled, and which provides a surface having an exceptionally... | 10/23/1984 |
| 4462771 | Wrap element and tip seal for use in fluid apparatus of the scroll type and method for making same A wrap element and tip seal are disclosed for use in fluid apparatus of the scroll type which include a wrap element having a groove disposed within its tip surface of spiroidal configuration generally conforming to that of the wrap element. A tip seal is... | 07/31/1984 |
| 4450903 | Plate type heat exchanger with transverse hollow slotted bar A plate type heat exchanger in which liquid is injected into a vaporous fluid stream through orifices in a hollow slotted bar. The hollow bar is disposed transversely to the longitudinal axis of the heat exchanger, between and abutting facing surfaces of ... | 05/29/1984 |
| 4446913 | Auto changeover thermostat with means for handling temperature entry errors A thermostat used to control a temperature conditioning system to heat or cool a comfort zone to a heating setpoint and a cooling setpoint. The thermostat is microcomputer based and includes both a digital keypad and display for setpoint entry by an opera... | 05/08/1984 |
| 4446915 | Heat exchanger tube circuits Tube circuits for heat exchangers which provide same-end inlet and outlet connections are disclosed, in which each circuit includes conduits of two types. In a preferred embodiment, the first type conduit has two tubes and is generally U-shaped, and the s... | 05/08/1984 |
| 4432693 | Centrifugal pump impeller An impeller for a centrifugal oil pump having improved head and flow output capabilities, which impeller can be machined into the end of a crankshaft. A plurality of radially extending tunnels are disposed horizontally in the crankshaft, with outlets in t... | 02/21/1984 |
| 4431380 | Scroll compressor with controlled suction unloading using coupling means In a scroll compressor, means for maintaining the motion of an orbiting plate in fixed angular relationship to a stationary plate and for modulating the capacity of the compressor. The orbiting and stationary plates include intermeshed wrap elements of si... | 02/14/1984 |
| 4431388 | Controlled suction unloading in a scroll compressor Apparatus for unloading a scroll compressor to modulate its capacity by separately controlling fluid flow into first and second inlets. The first and second inlets are disposed diametrically opposite each other in a fixed scroll plate, and are enclosed by... | 02/14/1984 |
| 4421453 | Centrifugal oil pump A centrifugal oil pump for a compressor having improved head and flow performance in which a plurality of tunnels extend radially outward and angularly upward from the face of the impeller and convey oil to the perimeter of the drive shaft during operatio... | 12/20/1983 |
| 4416597 | Tip seal back-up member for use in fluid apparatus of the scroll type A tip seal back-up member is disclosed for use in fluid apparatus of the scroll type, which member comprises a strip of material extending longitudinally in generally spiroidal configuration about a reference axis and having a preformed configuration such... | 11/22/1983 |
| 4415317 | Wrap element and tip seal for use in fluid apparatus of the scroll type A wrap element and tip seal are disclosed for use in fluid apparatus of the scroll type which include a wrap element having a groove disposed within its tip surface of spiroidal configuration generally conforming to that of the wrap element. A tip seal is... | 11/15/1983 |
| 4415318 | Rolling thrust bearing for use in a scroll machine A rolling thrust bearing for use in a scroll type positive fluid displacement apparatus is disclosed. In the invention, a plurality of ball bearings spaced apart in cavities formed in a bearing cage are operative to transmit an axial force between a suppo... | 11/15/1983 |
| 4413959 | Scroll machine with flex member pivoted swing link A positive fluid displacement apparatus of the scroll type, having a swing link for translating the rotational motion of a drive shaft into the relative orbital motion of two parallel end plates. The facing surfaces of the parallel plates have involute wr... | 11/08/1983 |
| 4411605 | Involute and laminated tip seal of labyrinth type for use in a scroll machine An involute and tip seal for use in a positive fluid displacement apparatus of the scroll type. A scroll machine wrap element of general spiral configuration about an axis includes a radially inner and outer flank surface terminating in a tip. In the tip,... | 10/25/1983 |
| 4406133 | Control and method for defrosting a heat pump outdoor heat exchanger A control and method for defrosting the outdoor heat exchanger of an air source heat pump. A defrost cycle is initiated when ice and frost have accumulated on the outdoor heat exchanger sufficiently such that, as a function of the indoor temperature of a ... | 09/27/1983 |
| 4406594 | Compressor oil pump A compressor oil pump with integral contaminant collector and helical vane for improved pumping efficiency. A generally cone-shaped pick-up tube is adapted to be attached to the lower end of a hollow rotatably driven vertical shaft for rotation thereby ab... | 09/27/1983 |
| 4403927 | Lubricant distribution system for scroll machine An oil distribution system for lubricating bearings in a scroll compressor. The system includes an oil collector cup attached to the lower surface of a swing link. Oil pumped through an internal passage in a rotating drive shaft is retained in the collect... | 09/13/1983 |
| 4399664 | Heat pump water heater circuit A heat pump refrigeration circuit for heating a space, cooling a space, heating a liquid, heating a space and heating a liquid or for cooling a space and heating a liquid in which indoor and outdoor heat exchangers, a liquid heat exchanger and liquid supp... | 08/23/1983 |
| 4391104 | Cascade heat pump for heating water and for cooling or heating a comfort zone A heat pump system and method, wherein the system may be operated in cascade fashion to heat water using heat extracted from relatively cold outdoor ambient air, or in non-cascade fashion to provide supplemental heating or cooling in a comfort zone. The s... | 07/05/1983 |
| 4389171 | Gas compressor of the scroll type having reduced starting torque A gas compressor of the scroll type is disclosed wherein means are provided for reducing its degree of compression as it starts from a standing start in order to reduce the initial starting torque required. To this end, passage means are provided which ex... | 06/21/1983 |
| 4383805 | Gas compressor of the scroll type having delayed suction closing capacity modulation A gas compressor of the scroll type is disclosed wherein unloader means are provided for selectively varying its capacity by effectively delaying the point at which the closed moving volumes defined between the wrap elements begin compression. To this end... | 05/17/1983 |
| 4382749 | Reciprocating compressor with integral unloader valve A multi-cylinder reciprocating compressor is disclosed which is provided with an unloader valve for blocking the flow of suction gas to at least one of the cylinders to reduce the compressor capacity. The unloader valve is disposed at one end of a cylinde... | 05/10/1983 |
| 4379484 | Control for a variable air volume temperature conditioning system-outdoor air economizer A solid-state control for a variable air volume (VAV) temperature conditioning system adapted to control a plurality of refrigerant cooling stages, and in particular, to modulate an outdoor air economizer. The control includes both an outdoor ambient air ... | 04/12/1983 |
| 4359086 | Heat exchange surface with porous coating and subsurface cavities A heat exchange surface having nucleate boiling cavities defined by subsurface cavities in combination with a thin porous coating. A preferred embodiment of the heat exchange surface includes a plurality of helical fins formed on the outer surface of a me... | 11/16/1982 |
| 4354550 | Heat transfer surface for efficient boiling of liquid R-11 and its equivalents A heat transfer surface for boiling liquid refrigerant 11 and its equivalents and method for producing the surface. The surface comprises a porous, open-cell coating at least 15 mils thick, of oxidized metallic particles which are flame-sprayed onto a met... | 10/19/1982 |
| 4353409 | Apparatus and method for controlling a variable air volume temperature conditioning system Apparatus and method for controlling a temperature conditioning system in which a plurality of stages of temperature conditioning apparatus may be selectively energized to meet a temperature conditioning demand in a comfort zone into which the flow of tem... | 10/12/1982 |
| 4353682 | Reciprocating gas compressor having suction shut-off unloading means A reciprocating gas compressor of the multicylinder, radial type is disclosed which includes unloading means for selectively shutting off suction gas flow to one or more of the cylinders in order to vary the capacity of the compressor. The unloading means... | 10/12/1982 |
| 4352635 | Multi-speed fan assembly Apparatus for rotating a fluid impeller of a centrifugal or axial flow fan, at multiple speeds. A fan is provided with a first and a second electric motor for drivingly rotating a fluid impeller at relatively fast and slow speeds, respectively. The rotor ... | 10/05/1982 |
| 4344330 | Average fluid flow sensor A sensor for providing a differential pressure signal indicative of the average relative rate of flow of a fluid through a duct. Two tubular members are provided, each of which are formed in a loop oriented transverse to the fluid flow and each having a p... | 08/17/1982 |
| 4344752 | Water-in-oil emulsifier and oil-burner boiler system incorporating such emulsifier An oil-water emulsifier comprises a Venturi member having an inlet for receiving oil, an oil-water emulsion outlet and an opening extending therethrough from the inlet to the outlet. The opening of the Venturi member comprises a diameter-reducing portion ... | 08/17/1982 |
| 4338790 | Control and method for defrosting a heat pump outdoor heat exchanger A control and method for defrosting the outdoor heat exchanger of an air source heat pump. A defrost cycle is initiated when ice and frost have accumulated on the outdoor heat exchanger sufficiently such that, as a function of the indoor temperature of a ... | 07/13/1982 |
| 4329701 | Semiconductor package An improved semiconductor package is disclosed wherein a semiconductor wafer assembly includes first and second generally planar surfaces having respective first and second membrane members in overlying relationship thereto. Encompassing the periphery of ... | 05/11/1982 |
| 4324286 | Control for vehicle temperature conditioning system Apparatus and method for controlling a vehicular temperature conditioning system in response to temperature conditioning demand, outdoor ambient air temperature, discharge air temperature, and vehicle engine oil pressure which is indicative of the rotatio... | 04/13/1982 |
| 4307775 | Current monitoring control for electrically powered devices Apparatus and method for controlling one or more electrically powered devices. A control for a temperature conditioning system is shown which is operative to monitor the electrical current supplied to component devices, i.e., compressors, auxiliary heatin... | 12/29/1981 |
