Quotables
"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
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| Number | Title | Issue Date |
| 5361985 | Setup tool for a wireless communications system A hierarchical control system including a central receiver; a first communications medium operably connecting the central receiver to at least one controller; and a controller operably connected to the central receiver by the first communications medium. ... | 11/08/1994 |
| 5355691 | Control method and apparatus for a centrifugal chiller using a variable speed impeller motor drive A controller for controlling the capacity of a centrifugal chiller compressor. The compressor is driven by an electric motor and has variable inlet guide vanes that control the flow of refrigerant to the compressor. The controller establishes a dimensionl... | 10/18/1994 |
| 5347821 | Apparatus and method of oil charge loss protection for compressors A method and apparatus for monitoring oil charge loss for use with a refrigeration system. The refrigeration system has a compressor for compressing a refrigerant gas, an oil/gas separator for separating compressed refrigerant from lubricating oil, a cond... | 09/20/1994 |
| 5341658 | Fail safe mechanical oil shutoff arrangement for screw compressor Apparatus as disposed internal of a refrigeration screw compressor which, upon compressor shutdown, shuts off the flow of oil injected into the compressor's working chamber and the oil which is directed to the compressor rotor bearings and which at compre... | 08/30/1994 |
| 5341527 | Bathtub with integrally formed leveling base A molded article and the mold for making molded articles are disclosed. The molded article is a sanitary fixture, such as a whirlpool bathtub. The molded article comprises a rigid shell having a finish side and a non-finish side. A rigid material is coate... | 08/30/1994 |
| 5341988 | Wireless air balancing system A hierarchical control system including a central receiver; a first communications medium operably connecting the central receiver to at least one controller; and a controller operably connected to the central receiver by the first communications medium. ... | 08/30/1994 |
| 5338501 | Insert on extended deck and process of molding A method of molding and a mold for making bathtubs are disclosed. The mold includes a mold receptor and a deck insert attached to the mold receptor face. The preferred deck insert has at least one projection designed to reduce the cross-sectional area of ... | 08/16/1994 |
| 5338159 | Co-rotational scroll compressor supercharger device In a co-rotational scroll apparatus having two interleaving scroll wraps secured to end plates rotating about parallel, non-concentric axes, a procharging device affixed to one end plate and substantially enclosing the scroll wraps and the second end plat... | 08/16/1994 |
| 5333835 | Electric motor driven air valve A valve for use in an air distribution system has an inlet member for the axial flow of air therethrough along a central axis. A downstream portion of the inlet tapers outwardly in the downstream direction. Support structure is presented from which an ext... | 08/02/1994 |
| 5333325 | Bathtub apron system A bathtub apron system for use with either one of two differently shaped bathtubs. The bathtub apron system includes an apron having an essentially planar central section with first and second ends, and inwardly rounded sections extending respectively fro... | 08/02/1994 |
| 5333791 | Nozzle for emission of a mixture of water and air for hydromassage An improved nozzle for emission of a mixture of water and air for hydromassage capable of being fixed to the wall of a tub which comprises an inner housing with the possibility of rotation lodged within an outer housing fixed to an opening in the tub. On ... | 08/02/1994 |
| 5330339 | Molding apparatus An elastomeric seal used in molding articles is disclosed. The seal has a first lateral cross-sectional dimension larger than the opening of a seal groove and at least a second lateral cross-sectional extending beyond the opening of a seal groove which is... | 07/19/1994 |
| 5326027 | Automatic configuration of air conditioning controller A self configuring air conditioning system. The system includes a system controller for an air conditioning system operably connected to a compressor and an expansion valve, a first portable wireless remote controller for providing commands and informatio... | 07/05/1994 |
| 5324229 | Two section economizer damper assembly providing improved air mixing A two section damper assembly and method of use is disclosed for avoiding stratification of cooled air in an air conditioning system. The damper assembly is especially adapted for use in variable air volume air conditioning systems that include an economi... | 06/28/1994 |
| 5319945 | Method and apparatus for non-atmospheric venting of evaporator over-pressure in a refrigeration system An over-pressure control apparatus for a refrigeration system provides for non-atmospheric venting of an evaporator during over-pressure conditions. The control apparatus includes a sensor for indicating evaporator pressure, a storage vessel for receiving... | 06/14/1994 |
| 5309892 | Blower deck for upflow or downflow furnace An upflow or downflow furnace comprising a housing; a heat exchanger section in the housing, a blower section in the housing, and a blower deck in the housing having an upward side and a downward side. The heat exchanger section includes at least one heat... | 05/10/1994 |
| 5303737 | Sanitary fitting A sanitary fitting comprises a fitting body that can be fixed in place and is provided with an inlet, an outflow channel and an outlet channel. A sleeve with a discharge arm provided with a discharge spout is disposed on the fitting body and connected wit... | 04/19/1994 |
| 5301716 | Closure damper for a sanitary water fitting A suitable design is given of a closure damper for a sanitary water fitting, especially in the form of a single-handle mixing unit, with a casing, an activation handle, and with a control unit presenting a disk, piston, balls, or the like, as well as a cl... | 04/12/1994 |
| 5301715 | Sanitary fitting with a pivoting flow arm In a sanitary fitting with a cylindrical fitting body that can be mounted in a fixed position and has inlet and outlet channels and an outflow channel, with a cylindrical fitting sleeve that has a pivot arm with an outlet mouthpiece connected at the side ... | 04/12/1994 |
| 5293758 | Outside section for split system air conditioning unit An outside section for a split system air conditioning unit. The outside section has a housing including a first side, a second side, a top, a bottom, a front, and a back. The housing also includes an air inlet located in a middle portion of the front, an... | 03/15/1994 |
| 5290154 | Scroll compressor reverse phase and high discharge temperature protection A low side scroll compressor is protected from both the potentially damaging effects of improper electrical hookup and the development of high discharge temperatures by apparatus disposed in a passage which communicates between the suction pressure portio... | 03/01/1994 |
| 5279515 | Air handling unit with improved acoustical performance An air handling unit has a fan wheel in offset placement and a plenum configuration preventing line of sight noise transmission into the air system supplied by the air handling unit. The fan wheel is so placed and the plenum configuration optimized so as ... | 01/18/1994 |
| 5279007 | Web protection system for double sinks A web protection system for a sink having at least first and second sink basins separated by a partition wall with the partition wall having an upper horizontal surface. The system includes an elongated web protector having a U-shaped cross-section which ... | 01/18/1994 |
| 5276630 | Self configuring controller A method of operating a controller of an HVAC system comprising the steps of: constantly establishing the validity of each of a plurality of input devices; and reconfiguring the mode of operation of the HVAC system each time the validity of any of the plu... | 01/04/1994 |
| 5272882 | Portable recycle/recovery/charging system with reconfigurable components A portable, refrigerant recycle/recovery/charging system comprising: a storage tank; a low pressure refrigeration system; and a housing. The housing includes liquid, vapor, pump and condenser sections. The liquid section has a liquid inlet, a liquid outle... | 12/28/1993 |
| 5271556 | Integrated furnace control An HVAC controller including a first input; a second input; first means, responsive to a first signal received on the first input, for generating a first mode of operation; second means, responsive to a second signal received on the second input, for gene... | 12/21/1993 |
| 5265432 | Oil purifying device for use with a refrigeration system An oil purification apparatus for use in conjunction with a refrigeration system. The oil purification apparatus includes an isolation tank for receiving a quantity of contaminated oil from the refrigeration system and holding the oil isolated from the re... | 11/30/1993 |
| 5265284 | Set for wall mounting sanitary wares An integral unit for mounting complete wall-mounted sanitary appliances comprises a flat profiled support (1) and a sectional box structure (3) which are intended to be fixed to a wall (5) one below the other, the first (1) of which is intended to support... | 11/30/1993 |
| 5261481 | Method of determining setback for HVAC system A method of air conditioning an environment with an HVAC system. The method comprises the steps of: determining an environment to be either occupied or vacant; determining a mode of operation for the HVAC system to be heating or cooling; determining a hea... | 11/16/1993 |
| 5251815 | Self powered and balancing air damper An automatic air damper assembly for use with a building conditioned air system. The air damping assembly includes a duct section adapted for insertion into the duct work of the conditioned air system, a adjustable damper installed in the duct section, a ... | 10/12/1993 |
| 5245712 | Tile edge tub A bathtub adapted to be secured in an opening defined by a tiled horizontal surface. The tub includes a sump portion having a bottom wall and an upstanding wall having a lower edge joined to said bottom wall and an upper edge. An essentially flat horizont... | 09/21/1993 |
| 5245221 | System for jetted tubs and apparatus therefor The present invention discloses a control box for enclosing at least one main control circuit electrically connected to at least one or more electrically-controllable function providing operating units mounted through or operably connected to a jetted tub... | 09/14/1993 |
| 5241253 | Controller for two-speed fans in VAV systems having inlet vanes A controller for operating a two-speed fan motor at one of two speeds and for selecting the appropriate speed in response to conditions such as a maximum and minimum duct static pressure in a fan unit having moveable inlet guide vanes for controlling air ... | 08/31/1993 |
| 5231846 | Method of compressor staging for multi-compressor multi-circuited refrigeration systems A method of staging and modulating compressors in a multi-circuited refrigeration system including a plurality of condensing heat exchange circuits where each condensing heat exchange circuit includes a plurality of compressors. The method comprises the s... | 08/03/1993 |
| 5230108 | Molded articles A molded article is disclosed. The molded article includes a shell having a reservoir, a deck surrounding the reservoir and an apron. The shell has an exterior non-finish side and an interior finish side. The non-finish side of the shell is coated with a ... | 07/27/1993 |
| 5224648 | Two-way wireless HVAC system and thermostat A building automation system comprising: means for conditioning air; means, associated with the air conditioning means, for distributing the conditioned air to at least one space to be conditioned and means for sensing environmental conditions in the at l... | 07/06/1993 |
| 5222672 | Water spout with plurality of arcuately disposed outlets The present invention comprises a water spout for use in a bathtub, sink or the like and has at least one inlet and a plurality of outlets for discharging the water. The outlets are arranged in arcuate fashion and are sufficiently spaced to enable discret... | 06/29/1993 |
| 5212964 | Scroll apparatus with enhanced lubricant flow In a co-rotational scroll apparatus having two interleaving scroll wraps secured to end plates rotating about parallel, non-concentric axes to produce a relative orbital motion, a means for enhancing lubricant flow through the scroll wraps. One or more pa... | 05/25/1993 |
| 5211026 | Combination lift piston/axial port unloader arrangement for a screw compresser An unloading arrangement for a rotary screw compressor includes discrete and different unloading apparatus associated with the male and female rotors respectively. The unloading apparatus associated with the male rotor is an axial piston continuous unload... | 05/18/1993 |
| 5208043 | Adjustable shims for mold seals An adjustable sealing system for use in a molding apparatus is disclosed. The molding apparatus is used for applying a coating of polymeric material to the surface of a shell. The molding apparatus includes a molding surface and a seal groove adapted for ... | 05/04/1993 |
