Patents Issued in March 29, 1988
  • Patent number: D294980
    Type: Grant
    Filed: May 29, 1985
    Date of Patent: March 29, 1988
    Inventor: Kathleen M. Freson
  • Patent number: D294981
    Type: Grant
    Filed: August 21, 1985
    Date of Patent: March 29, 1988
    Assignee: Izumi Seimitsu Kogyo Kabushiki Kaisha
    Inventor: Shunji Izumi
  • Patent number: D294982
    Type: Grant
    Filed: August 23, 1985
    Date of Patent: March 29, 1988
    Assignee: Izumi Seimitsu Kogyo Kabushiki Kaisha
    Inventor: Shunji Izumi
  • Patent number: D294983
    Type: Grant
    Filed: September 19, 1985
    Date of Patent: March 29, 1988
    Assignee: Rockford Sport Products, Inc.
    Inventors: Charles J. Purin, Guenther F. Kluever
  • Patent number: D294984
    Type: Grant
    Filed: November 25, 1985
    Date of Patent: March 29, 1988
    Inventor: Richard L. Green
  • Patent number: D294985
    Type: Grant
    Filed: February 3, 1986
    Date of Patent: March 29, 1988
    Inventor: Joanna Blieden
  • Patent number: D294986
    Type: Grant
    Filed: July 10, 1986
    Date of Patent: March 29, 1988
    Inventor: Frank W. Atchley
  • Patent number: D294987
    Type: Grant
    Filed: March 7, 1985
    Date of Patent: March 29, 1988
    Assignee: North American Philips Corporation
    Inventors: Ronald L. Muller, Keith R. Wruck
  • Patent number: D294988
    Type: Grant
    Filed: November 1, 1985
    Date of Patent: March 29, 1988
    Assignee: Bissell Inc.
    Inventor: Gordon W. Goodrich
  • Patent number: D294989
    Type: Grant
    Filed: January 17, 1985
    Date of Patent: March 29, 1988
    Inventor: Danny R. Jinkins
  • Patent number: D294990
    Type: Grant
    Filed: March 1, 1985
    Date of Patent: March 29, 1988
    Inventor: Mary A. Stern
  • Patent number: D294991
    Type: Grant
    Filed: June 26, 1986
    Date of Patent: March 29, 1988
    Assignee: Wearever-Proctorsilex
    Inventors: Marshall B. Johnson, John C. Meadway
  • Patent number: D294992
    Type: Grant
    Filed: April 8, 1985
    Date of Patent: March 29, 1988
    Inventor: Gary L. Bouge
  • Patent number: D294993
    Type: Grant
    Filed: November 15, 1985
    Date of Patent: March 29, 1988
    Assignee: Barclay Horticulture Mfg. Ltd.
    Inventor: Thomas L. Faul
  • Patent number: D294994
    Type: Grant
    Filed: July 25, 1985
    Date of Patent: March 29, 1988
    Inventor: Norma J. Burgett
  • Patent number: PP6135
    Abstract: The subject of the present disclosure is a new and distinct variety of miniature rose plant, named `Bread 'n Butter`, which is characterized by its blooms of bright orange with softer orange to pale yellow reverse, usually borne one to a stem with hybrid tea form. The bush is average height for a miniature, well-branched and produces moderate to heavy quantities of bloom.
    Type: Grant
    Filed: February 3, 1986
    Date of Patent: March 29, 1988
    Inventor: Cecilia L. D. Bennett
  • Patent number: PP6136
    Abstract: The subject of the present disclosure is a new and distinct variety of miniature rose plant, named `Debra Gaye`, which is characterized by its blooms which range in color from Delft Rose to Vermillion with bases of Mimosa Yellow, usually borne one to a stem with hybrid tea form. The bush is vigorous, well-branched and produces moderate to heavy quantities of bloom.
    Type: Grant
    Filed: February 3, 1986
    Date of Patent: March 29, 1988
    Inventor: Cecilia L. D. Bennett
  • Patent number: PP6137
    Abstract: The subject of the present disclosure is a new and distinct variety of miniature rose plant, named `Spring Bouquet`, which is characterized by its blooms which range in color from near Crimson to near Rose Bengal with a reverse of near Naple Yellow to near Barium Yellow, usually borne one to a stem with hybrid tea form. The bush is vigorous, well-branched and produces moderate quantities of bloom.
    Type: Grant
    Filed: February 3, 1986
    Date of Patent: March 29, 1988
    Inventor: Cecilia L. D. Bennett
  • Patent number: PP6138
    Abstract: The subject of the present disclosure is a new and distinct variety of miniature rose plant, named `Little Peaches`, which is characterized by its soft yellow blooms, ranging from Primrose Yellow to Mimosa Yellow with the outer margins blushing Empire Rose to Delft Rose, usually one to a stem with hybrid tea form. The bush is compact, well-branched and produces moderate to heavy quantities of bloom.
    Type: Grant
    Filed: February 3, 1986
    Date of Patent: March 29, 1988
    Inventor: Cecilia L. D. Bennett
  • Patent number: PP6139
    Abstract: The subject of the present disclosure is a new and distinct variety of miniature rose plant, named `Sugar 'n Spice`, which is characterized by its blooms which range in color from near Begonia to near Porcelain Rose, usually borne one to a stem with hybrid tea form. The bush is vigorous, well-branched and produces moderate to heavy quantities of bloom. (More detailed description to follow.
    Type: Grant
    Filed: February 3, 1986
    Date of Patent: March 29, 1988
    Inventor: Cecilia L. D. Bennett
  • Patent number: PP6140
    Abstract: The subject of the present disclosure is a new and distinct variety of miniature rose plant, named `Lois`, which is characterized by its blooms which range in color from near Amaranth Rose to near Pastel Mauve, usually borne one to a stem with hybrid tea form. The bush is vigorous, well-branched and produces moderate quantities of bloom.
    Type: Grant
    Filed: February 3, 1986
    Date of Patent: March 29, 1988
    Inventor: Cecilia L. D. Bennett
  • Patent number: PP6141
    Abstract: The subject of the present disclosure is a new and distinct variety of miniature rose plant, named `Dilly Dilly`, which is characterized by its blooms which range in color from near Rose Purple to near Magnolia Purple, usually borne one to a stem with hybrid tea form. The bush is vigorous, well-branched and produces moderate to heavy quantities of bloom.
    Type: Grant
    Filed: February 3, 1986
    Date of Patent: March 29, 1988
    Inventor: Cecilia L. D. Bennett
  • Patent number: RE32629
    Abstract: A mowing machine is provided with its cutting head employing one or more flexible cutting lines such as Nylon cords which serve to cut grasses during rotation of the cutting head. The free end portions of the cutting lines extend radially outwardly from a casing through openings in an annular inertai shifter which is housed in the casing for vertical and angular movements relative to the casing.
    Type: Grant
    Filed: November 12, 1986
    Date of Patent: March 29, 1988
    Assignee: Kioritz Corporation
    Inventors: Toru Baba, Yasuo Saito
  • Patent number: RE32630
    Abstract: An improved thermocouple and method for making the thermocouple and installing same on the fireside of heat exchanger tubes or the like for monitoring surface temperature which includes a thermocouple assembly made from mineral oxide insulated metal sheathed thermocouple wires where a pair of thermocouple wires or conductors extend through a metal sheath in spaced apart and insulated relation from each other and from the sheath and are connected together at an end to define a hot junction member adapted to be mounted in engagement with the surface being measured, which hot junction is defined by a disk or bar-shaped member extending from the end of the sheated conductor assembly beyond the insulation and sheath but not in contact with the sheath. Installation on a heat exchanger tube includes welding the sheath to the tube which pressurizes the hot junction against the temperature measured surface and defines a heat energy path that bypasses the hot junction.
    Type: Grant
    Filed: April 22, 1985
    Date of Patent: March 29, 1988
    Inventor: Philip F. Finney
  • Patent number: RE32631
    Abstract: The strain gauge bridge circuit located in .[.the.]. .Iadd.a .Iaddend.load cell .[.of a load cell mass comparator.]. is modified to provide temperature stability by coupling a remotely located temperature compensating circuit between the two normally connected output ends of strain gauges in adjacent arms of the bridge. The compensating circuit is comprised of a pair of series connected low noise, drift-free precision resistors of relatively low resistance value compared to the resistance of the strain gauges. The precision resistors are shunted by relatively high valued potentiometers which operate to balance the bridge. One potentiometer additionally includes a series connected high value precision resistor for providing fine balance while the other potentiometer is used for coarse balance.
    Type: Grant
    Filed: July 10, 1986
    Date of Patent: March 29, 1988
    Assignees: Frazier Precision Instrument Company, Inc., Holometrics, Inc.
    Inventor: Howard P. Layer
  • Patent number: RE32632
    Abstract: A cursor control device having particular application to a computer display system is disclosed. The cursor control includes a unitary frame, having a domed portion substantially surrounding and retaining a ball which is free to rotate. X-Y position indicating means are provided, such that rotation of the ball provides signals indicative of X-Y positions on the display system. The ball is free to "float" in the vertical direction within the dome, and thereby maintain good surface contact. X-Y positions are established by movement of the control device over a surface. A display system and method is disclosed for use in conjunction with the cursor control device, which permits a user to select command options simply by movement of the displayed cursor over a "pull-down" menu bar.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: March 29, 1988
    Assignee: Apple Computer, Inc.
    Inventor: William D. Atkinson
  • Patent number: RE32633
    Abstract: A cursor control device having particular application to a computer display system is disclosed. The cursor control includes a unitary frame, having a domed portion substantially surrounding and retaining a ball which is free to rotate. X-Y position indicating means are provided, such that rotation of the ball provides signals indicative of X-Y positions on the display system. The ball is free to "float" in the vertical direction within the dome, and thereby maintain good surface contact. X-Y positions are established by movement of the control device over a surface. A display system and method is disclosed for use in conjunction with the cursor control device, which permits a user to select command options simply by movement of the displayed cursor over a "pull-down" menu bar.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: March 29, 1988
    Assignee: Apple Computer, Inc.
    Inventors: Dean Hovey, James Sachs, James Yurchenco, William Lapson
  • Patent number: RE32634
    Abstract: An adhesive for bonding cured EPDM membranes is provided comprising(A) a halogenated butyl rubber(B) a pre-cross linked butyl rubber(C) a styrene/ethylene butylene/styrene block thermoplastic rubber,(D) a thermoplastic petroleum based hydrocarbon feedstock derived aliphatic monomer resin and(E) an aliphatic isocyanate.
    Type: Grant
    Filed: November 3, 1986
    Date of Patent: March 29, 1988
    Assignee: Uniroyal Plastics Company, Inc.
    Inventors: Chester T. Chmiel, Daniel J. Cotsakis
  • Patent number: 4733410
    Abstract: A tubular knit finger cot having one end closed by a transverse seam and the other end open, the closed end region tapering toward the seam, and resiliently extensile yarn interknit in the region adjacent to the open end to provide an elastic retaining collar.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: March 29, 1988
    Inventor: Ruth E. Glotkin
  • Patent number: 4733411
    Abstract: An outer absorbent paper layer and an inner waterproof plastic layer, each configured to provide an apron and a yoke, are bonded together in overlapping relationship with adhesive and connected along their outer boundaries and neckline with over-lock stitching. The yoke is removably attached over one shoulder with an adhesive tab.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: March 29, 1988
    Inventor: Cynthia S. Foti
  • Patent number: 4733412
    Abstract: The present ski glove provides warmth and is constructed to be highly flexible to permit the wearer to firmly grip and feel the ski pole when skiing. The ski glove includes an inner glove member and an outer glove member with insulating material between the inner and outer glove members and an auxiliary cuff member is formed around the wrist area of the inner glove member by an outwardly folded layer of the inner glove member to provide an outwardly extending wrist encircling welt. The auxiliary cuff is joined at its inner end to a main cuff portion which may be maintained in a position extending partially up the arm of the wearer or which may be turned inwardly over the outer portion of the glove when skiing in warmer temperatures.
    Type: Grant
    Filed: May 22, 1987
    Date of Patent: March 29, 1988
    Inventor: William O. Campbell
  • Patent number: 4733413
    Abstract: A glove construction wherein the trank, forchette and thumb piece are stitched together at the outer periphery in the gunn pattern with the liner outside and a water barrier layer inside to form a glove invert with exterior seams; the invert is then reversed to place the barrier layer outside, the liner insert and the seams inverted; an adhesive sealant is then applied along the inverted seams and cured. This reversed glove invert is then placed inside of and secured to an outer shell as of leather.
    Type: Grant
    Filed: March 5, 1987
    Date of Patent: March 29, 1988
    Assignee: Shelby Group International, Inc.
    Inventor: Martin Dykstra
  • Patent number: 4733414
    Abstract: A spring loaded drain cleaning device utilizing both positive and negative pressures to disrupt a clog. The invention is composed of a plastic hollow cylinder ending in an angled base cup having a gasket at its lower extremity, a cap at the top of the cylinder, a reciprocally mounted piston and a rod which permits the user to transmit forces onto the piston, and a biasing spring which acts on the piston. The user depresses the rod, causing the piston to descend down the cylinder resulting in fluidic compression in the drain above the clog, along with compression of the spring. Release of the rod results in a spring biased return of the piston up the cylinder, with an attendant negative fluidic pressure above the clog. The cycle is repeated in rapid succession until the clog clears.
    Type: Grant
    Filed: October 2, 1986
    Date of Patent: March 29, 1988
    Inventor: Karl A. Wilkes
  • Patent number: 4733415
    Abstract: An automatic drain sealer is provided for halting an infestation of insects and gas escapement into a residential or commercial enclosure from a sewer line via a drain of a sink or basin receptacle.
    Type: Grant
    Filed: December 4, 1986
    Date of Patent: March 29, 1988
    Inventor: Dino Ippoliti
  • Patent number: 4733416
    Abstract: Disclosed is a push button apparatus for operating a flush valve or the like of a water closet, comprising button actuator means including a button and housing, said housing having a shank for passing through an opening in a water closet tank wall, the button having an actuator within and reciprocally movable relative to said housing shank. Means are provided for securing bracket means to the button shank in a predetermined orientation therewith. Means are provided for actuating lever arm means. Means on the bracket means and the lever actuating means for mounting the lever actuating means for pivotal movement relative to the bracket means upon reciprocal movement of the button actuator operatively contacting the cam means. The mounting means comprises pivot means and pivot socket means with means providing lateral access to the socket means.
    Type: Grant
    Filed: November 13, 1986
    Date of Patent: March 29, 1988
    Inventor: Walter Ott
  • Patent number: 4733417
    Abstract: A steady state swimming pool heat exchanger designed to warm the water in swimming pools by the conducting of heat from the constant heat reservoir of the earth into the water in the pool through a heat-conducting rod sunk vertically into the earth beneath the pool. Attached to the rod is a contact plate, mounted on the floor of the pool, which transfers heat energy from the rod to the water. In temperate climates, the earth maintains a constant level of heat of 65 to 70 degrees at a depth of approximately 10 meters. The contact between the earth and the water in the pool provides a steady state transfer of heat to warm the water when the water temperature is below that of the earth reservoir. A non-conducting cover is provided to restrict the heat flux when heating or cooling of the water is not desired.
    Type: Grant
    Filed: July 20, 1987
    Date of Patent: March 29, 1988
    Inventor: Dennis A. De Shon
  • Patent number: 4733418
    Abstract: An apparatus for assisting a handicapped or physically impaired person into and out of a bathing receptacle contains a stanchion mounted independently of the receptacle, a seat which is pivotably attached to the stanchion and a leg support. The stanchion contains a hydraulic cylinder for raising and lowering the seat. The leg support can also be elevated or retracted. The entire apparatus is foldable and can thus be stored out of the way when not in use.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: March 29, 1988
    Assignee: Enabling Devices, Inc.
    Inventor: Henry D. Luther
  • Patent number: 4733419
    Abstract: A toilet seat up indicator is housed in a flat curvilinear shaped housing for fitting underneath the rim of a toilet seat. The housing contains compartments for a flashing light, batteries, an integrated circuit flasher, a mercury switch and capacitors. A cover bearing a message such as SEAT UP is slidably mounted on the housing in mounting slots over the flashing light. The mercury switch activates the flasher when the seat is up.
    Type: Grant
    Filed: June 25, 1987
    Date of Patent: March 29, 1988
    Inventor: Suzanne Nee
  • Patent number: 4733420
    Abstract: Method and apparatus for impregnating tubular fabrics wherein the fabric is driven over an elongate driving member extending through an impregnation station by means of a transport layer or tube extending between said fabrics and said guiding member and driven to transport the fabric through the impregnating station.
    Type: Grant
    Filed: October 14, 1986
    Date of Patent: March 29, 1988
    Assignee: Koninklijke Nijverdal-Ten Cate NV
    Inventors: Jan Schapink, Frans B. Bruns
  • Patent number: 4733421
    Abstract: The apparatus consists of a vertically upright rotatable brush roller (4) arranged in an outwardly opening groove (5) of a water-tight housing (3). An arcuate water supply pipe (14) with plural water nozzles (15) is provided above the upper peripheral edge of the roller. The periphery of the roller projects from the groove. The side edges of the groove are provided with air-jet nozzles (16) which are directed tangentially to the roller. A standing against the brush roller (4) permits a washing and/or massaging of the human body, whereby the washing process is aided by a curtain of water created by the water supply to the water pipe (14) having plural downwardly directed water nozzles (15). An acceleration of the drying process is enhanced by the air-jet nozzles (16). The brush roller (4) is equipped with nylon bristles.
    Type: Grant
    Filed: June 2, 1986
    Date of Patent: March 29, 1988
    Assignee: Verena Kuersteiner
    Inventor: Hans Kuersteiner
  • Patent number: 4733422
    Abstract: An apparatus and method for facilitated automatic washing and rinsing of previously used lithographic plate members having substantially flat central portions and pre-formed parallel flanged peripheral edges which comprises removing one or more used plates from a press plate drum, placing the plate on a feed fixture, longitudinally propelling the plate member, applying one or more cleaning solvents to the surface of the plates, scrubbing the surfaces of the plates, rinsing the surfaces thereof with one or more solvents, removing of excess rinse liquids from the surfaces of the plates, sealing the surfaces with a water soluable preserving substance and storing of the plate members until reuse thereof, while accommodating and preserving the peripheral pre-formed flanges of the lithographic plates as they pass through the apparatus, and recycling the cleaning solvent.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: March 29, 1988
    Assignee: W. A. Krueger Co.
    Inventors: Gary L. Schramm, Ralph G. Pontillo, Richard J. Hladilek
  • Patent number: 4733423
    Abstract: A pop top can brush for the cleaning of aluminum and metal pop top cans having a substantially planer top surface, a sidewall substantially perpendicular to the planer top surface, the planar top surface of sidewall having a common circumferential edge, a plurality of cleaning means depending downwardly from the substantially planer top surface and a second plurality of cleaning means depending inwardly from the perpendicular sidewall, the cleaning means positioned to coincide with at least a portion of the circular top of an aluminium or metal pop top can.
    Type: Grant
    Filed: September 5, 1986
    Date of Patent: March 29, 1988
    Inventor: Gregory Blatt
  • Patent number: 4733424
    Abstract: A doormat housing comprising a swingingly retractable doormat tray seated within which is a doormat, is slidably affixed against one side of an entranceway door for use when the door is opened. In use, the doormat housing is slidingly moved to a lowered position whereat, upon the downward and outward swinging of the doormat tray, the tray with mat will seat against the floor or walking surface close to the entranceway.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: March 29, 1988
    Inventor: David E. Gurkin
  • Patent number: 4733425
    Abstract: Mascara brush construction composed of a plurality of radially extending bristle filaments fastened in brush formation by a helically twisted metallic wire core. The bristles are tubular or hollow polyamide filaments, each crimped at the midpoint of its length by portions of the helically twisted wire so that the filament halves flare outward in various directions from the brush core. In an alternate embodiment the filaments are noncircular in cross-section and include a plurality of longitudinal, radially extending flange portions.
    Type: Grant
    Filed: June 16, 1986
    Date of Patent: March 29, 1988
    Assignee: Sanderson-MacLeod, Inc.
    Inventors: Franklin J. Hartel, Eric W. Sanderson
  • Patent number: 4733426
    Abstract: A washing aid in the form of either a soap tablet or a sponge is covered with a fabric layer formed from spandex yarn. A raschel knit LYCRA.RTM. is stretched over the soap tablet or sponge by firstly manufacturing a tube of the fabric and then injecting the sponge or soap into the tube and sealing the ends of the tube. Heat sealing is used for the transverse seams and heat sealing or sewing can be used for the longitudinal seam of the tube. The apparatus includes an injector, retracting rollers and the heat sealing mechanism.
    Type: Grant
    Filed: March 13, 1986
    Date of Patent: March 29, 1988
    Inventor: Burrell F. George
  • Patent number: 4733427
    Abstract: The present invention provides an improved brush for cleaning underwater surfaces, such as swimming pool walls and bottoms, and uses a hinged wing that presents an inclined plane to the water when the brush is moved in its downward stroke. The wing thus acts to exert a desired force upon the brush which urges the brush against the surface being cleaned. On the return stroke of the brush, the hinged wing is caused to move to a position trailing the brush, where it avoids urging the brush back into contact with the surface that was just cleaned on the downward stroke. Rather, this trailing position helps to keep the brush off of the cleaned surface, and creates little or no drag for the return stroke.
    Type: Grant
    Filed: June 10, 1986
    Date of Patent: March 29, 1988
    Inventor: Richard H. Conrad
  • Patent number: 4733428
    Abstract: A cleaning tool for an optical surface, particularly well adapted to the cleaning of optical surfaces which access is difficult.The cleaning tool includes an injector (8) which can send a cleaning liquid, and then a drying gas, under pressure onto the optical surface (2), and a jacket (9) for the evacuation of the cleaning and drying fluids. The tool has a neck (13) to fit onto an optical tip associated with an optical fiber.
    Type: Grant
    Filed: November 5, 1986
    Date of Patent: March 29, 1988
    Assignee: Amphenol Corporation
    Inventors: Jean L. Malinge, Roger Collignon, Rene Dousset
  • Patent number: 4733429
    Abstract: The motor 3 of the vacuum cleaner is surrounded by the elastomeric shroud 4, which is air-tightly joined to the blower 2. The blower 2 moves the drawn in air into the space defined by the shroud, which the air can only leave through the air outlet ports 13 formed in the wall of the shroud. Behind the air outlet ports 13 there is a filter 10, which cleans the air coming from the shroud. The air passes into the space between the shroud and the vacuum cleaner housing, where it is distributed and comes to rest. It passes through numerous air outlet ports 15 in the vacuum cleaner housing at a low speed.
    Type: Grant
    Filed: November 25, 1985
    Date of Patent: March 29, 1988
    Assignee: Progress-Elektrogerate Mauz & Pfeiffer Gmbh & Co.
    Inventors: Gernot Jacob, Leon Radom
  • Patent number: 4733430
    Abstract: A canister type vacuum cleaner includes a floor cleaning unit and a canister unit interconnected by a wand and hose assembly. The canister unit has a dust collection bag mounted in a dust collecting compartment by a pivotally movable dust bag mount that pivots to an operative position. A suction fan evacuates the air within the dust collecting compartment causing dirt laden air to flow from the floor cleaning unit through the wand and hose assembly and into the dust bag through an intake port formed in the dust bag mount. The air is exhausted from the canister unit through a discharge port. An operating condition monitoring and indicating system provides information as to the status of the dust bag and the wand and hose assembly by means of a check bag light and a check hose light.
    Type: Grant
    Filed: December 9, 1986
    Date of Patent: March 29, 1988
    Assignee: Whirlpool Corporation
    Inventor: George A. Westergren
  • Patent number: 4733431
    Abstract: A canister type vacuum cleaner includes a floor cleaning unit and a canister unit interconnected by a wand and hose assembly. The canister unit has a dust collection bag mounted in a dust collecting compartment by a dust bag mount. A suction fan evacuates the air within the dust collecting compartment causing dirt laden air to flow from the floor cleaning unit through the wand and hose assembly and into the dust bag through an intake port formed in the dust bag mount. The air is exhausted from the canister unit through a discharge port. A performance monitoring and indicating system provides information as to the operative condition of the vacuum cleaner by means of an "OK" light, a "No Bag" light, a "Check Bag" light and a "Check Hose" light. A dust bag sensor senses the differential pressure between the intake port and the dust collecting compartment and is actuated when a functional dust bag is properly mounted on the dust bag mount.
    Type: Grant
    Filed: December 9, 1986
    Date of Patent: March 29, 1988
    Assignee: Whirlpool Corporation
    Inventor: William J. Martin