Opposed Faces Located In And Bias Towards Common Plane In Nonuse Position Patents (Class 24/547)
  • Patent number: 11259607
    Abstract: A hook comprising a body having a first coil on a first end and a second coil on a second end. The coils may be spirals curving in opposite directions. The body may be constructed of filament, such as metal wire, and may be hypoallergenic. The coils may be disposed on opposite ends of the body. An aperture may be disposed on the lower side of the body, and may be defined by a loop. A base may interface with the aperture, the interfacing base configured to interface on one side with the body and interface with a jewelry on the opposite side.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: March 1, 2022
    Assignee: Eleven Graces, LLC
    Inventor: Lisa Kelley
  • Patent number: 10544998
    Abstract: An attachment member is arranged to engage an edge portion of a heat exchanger plate for fastening a gasket to a first side of the heat exchanger plate. It comprises a first connection member, a second connection member and a bridge. A first part of the first connection member is arranged to engage the gasket while a second part of the first connection member engages the bridge. A first part of the second connection member is arranged to engage the gasket while and a second part of the second connection member engages with the bridge. The attachment member further comprises a plurality of fingers arranged between the first and second connection members. A respective connection part of each finger engages the bridge and the fingers are arranged to extend from the bridge towards the gasket.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: January 28, 2020
    Assignee: ALFA LAVAL CORPORATE AB
    Inventors: Magnus Hedberg, Johan Nilsson
  • Patent number: 9974372
    Abstract: The invention involves an improved hairpin formed of a wire having two terminal ends and a series of bends that define differently situated prongs for securing a hairstyle of a wearer. In exemplary embodiments, a first prong may be defined by a first leg and a second leg that extend from a first u-shaped bend. A second prong may be defined by the first leg and a third leg that extends from a second u-shaped bend situated opposite to the first u-shaped bend. Moreover, a third prong may be defined by the second leg and a fourth leg extending from a third u-shaped bend situated opposite to the first u-shaped bend, wherein the first u-shaped bend, the second u-shaped bend and the third u-shaped bend are situated on a single plane and the first leg, the second leg, the third leg and the fourth leg are substantially parallel.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: May 22, 2018
    Inventor: Colleen M. Lohse
  • Patent number: 9962006
    Abstract: A bed base capable of fixing mattress includes a base frame and a fixation member. The base frame includes at least one insertion hole. The fixation member includes at least one horizontally extended part, at least one insertion part downwardly extended from an end of the horizontally extended part, and a stopper part upwardly extended from the other end of the horizontally extended part. The insertion part is inserted into the insertion hole of the base frame, the horizontally extended part is placed on a top surface of the base frame, and the stopper part is used to stop at a side edge of the mattress. Therefore, the assembly or disassembly of the fixation member can be achieved without tool assistance.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: May 8, 2018
    Inventor: Chuan-Hang Shih
  • Patent number: 9918732
    Abstract: Some embodiments are directed to medical devices, and methods for making and using the medical devices. An exemplary medical device includes a first elongate member, a second elongate member, and a coupler. The coupler may be configured to removably couple the first elongate member to the second elongate member.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: March 20, 2018
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Kenneth M. Flynn, Jamie Li, David L. Mason, James M. Goddard
  • Patent number: 9615659
    Abstract: A hanger having a first elongate segment, a second elongate segment, and a third elongate segment disposed in adjacent spaced apart relation, the first elongate segment and the second elongate segment disposed a sufficient distance apart to receive between a thickness of a shelf, the second elongate segment and the third elongate segment disposed a sufficient distance apart to hang a garment on said third elongate member.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: April 11, 2017
    Inventor: Vicki LaRae King
  • Patent number: 9321295
    Abstract: A paper clip assembly, that includes a wire frame that is formed into a loop and a jaw that protrudes outwardly from the loop. Also, a plate insert is shaped to fit into said loop, and in one embodiment is fit into the loop, to form a paper clip having a plate that can bear a message.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: April 26, 2016
    Inventor: Arsenio P. Santos
  • Patent number: 9080281
    Abstract: A fabric pin for fixing a fabric on a clothesline comprises a first leg, a second leg and a spring structure. The spring structure is arranged to force the first leg and the second leg in a clamping position in which the fabric is clampable between the first leg and the second leg. The first leg, the second leg, and the spring structure are integrally formed. The spring structure has an outer ring segment portion with a first end and a second end, wherein the first end of the ring segment portion of the spring structure is connected to a distal end region of the first leg and the second end of the ring segment portion of the spring structure is connected to a distal end region of the second leg. The first leg and the second leg are arranged inside the outer ring segment portion of the spring structure.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: July 14, 2015
    Assignee: Eklipse, LLC
    Inventor: Charles Marion Earley, III
  • Patent number: 8752402
    Abstract: A jewelry item includes an ornament, a coil with a plurality of turns, and a pad. The pad includes a central bore configured for receiving the helical coil. A compressive force between adjacent turns of the helical coil couples the jewelry item to a body part. The jewelry item can be an earring.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: June 17, 2014
    Inventor: Laura Pfaff
  • Patent number: 8545525
    Abstract: The present embodiments provide medical apparatuses and methods for rapidly forming an anastomosis between two viscera. The medical apparatus generally comprises affixing a clamp to an elongate member. The method generally comprises positioning and then deploying the medical apparatus between and within two stomas via an elongate member.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: October 1, 2013
    Assignee: Cook Medical Technologies LLC
    Inventors: Vihar Surti, Tyler McLawhorn, Richard W. Ducharme
  • Patent number: 7647739
    Abstract: A suspended ceiling construction includes fill-in panels, diffusers and/or light fixtures which are retained in their openings by spring clips that have been pre-attached to the ceiling grid frame members. The clips bear against edges of the panels to keep them in place normally, but they can be deflected out of the way by pushing up on the panels when necessary. As the tips of the clips contact the frame members during deflection, they provide increasing resistance to further deflection.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: January 19, 2010
    Inventor: Augustus Ray Boyd
  • Patent number: 7390068
    Abstract: A wheel, by which a base is configured to be wheeled across a floor, includes a tread and a hub. The hub has an inner surface that surrounds an axis and defines a bore. The hub further has an outer surface surrounding the inner surface and a slot extending radially outward from the bore to the outer surface. A shaft is centered on the axis and coupled to the base. The shaft is configured to be received in the bore and has a groove. A clip is configured to be attached to the hub in an installed position in which the clip extends from within the groove outward through the slot to secure the hub to the shaft. The installed position is axially between the base and the tread.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: June 24, 2008
    Assignee: The Scott Fetzer Company
    Inventors: David Scott Smith, Carl M. Barr
  • Patent number: 7350756
    Abstract: A fastener for the suspension of a birdcage toy or the like has a first end terminating in a first loop, and a second end terminating in a second loop, each of the first and second loops terminating in a free end that allows for easy attachment of objects to the loops. An additional section is defined between the loop free ends to assist in preventing the free ends from deflecting outward, resulting in possible inadvertent detachment from the cage or retained object.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: April 1, 2008
    Assignee: JW Pet Company, Inc.
    Inventors: Klaus Woltmann, Jonathan Willinger
  • Patent number: 7077851
    Abstract: An aneurysm clip (1) is provided with two arms (2, 3) which are resiliently pivotable towards each other and carry at their free end clamping bars (12, 13) which are resiliently clamped against each other by the spring force of the arms, with outwardly curved sections of the arms adjoining the clamping bars and jointly forming a receiving space (10) for a vessel (11). In order to improve the safety of the application and the possibility of varying the application of the aneurysm clip, the clamping bars protrude from the arms towards both sides and thereby project laterally on both sides over the width of the arms in the outwardly curved sections.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: July 18, 2006
    Assignee: Aesculap AG & Co. KG
    Inventors: Theodor Lutze, Manfred Fischer, Thomas A. Kopitnik, Jr.
  • Patent number: 7062886
    Abstract: A clip to hold panels in place in grid openings in a suspended ceiling. The clip is integrally formed and includes relatively flexible hinges that bias relatively rigid sections against the panels.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: June 20, 2006
    Assignee: Worthington Armstrong Venture
    Inventor: Joseph Auriemma
  • Patent number: 6618908
    Abstract: This invention relates to a cufflink that can be attached on a casual shirt of a type comprising a cuff, a cuff button and only one cuff button hole. The cufflink comprises a pair of legs joined by a spring, an attachment means, which is either a hook or a cup-shaped member for placing on top of the cuff button and an impingement knob biased against the attachment means by the spring.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: September 16, 2003
    Inventor: Brooks Lamb
  • Patent number: 6494413
    Abstract: A holding recess (14) for holding the self-supporting-type cable (1) is formed between elastic holding portions (12, 13). Retaining projections (12a, 13a) are formed respectively on those side surfaces of the elastic holding portions (12, 13), exposed to the holding recess (14), in stepped relation to each other. Even when the self-supporting-type cable (1) is held in any posture, with its cable body portion (2) or its wire support portion (3) first introduced into the holding recess (14), the cable body portion (2) is engaged with the two retaining projections (12a, 13a) in a press-contacted manner to be prevented from withdrawal, or the cable body portion is engaged with the retaining projection (13a) and the bottom of the holding recess (14) in a press-contacted manner, and therefore is held in a stable manner.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: December 17, 2002
    Assignee: Yazaki Corporation
    Inventors: Shinichi Saeki, Kenji Yamazaki, Ikuo Takeda
  • Patent number: 6240605
    Abstract: The present invention relates to a device for use in remanufactured toner cartridges in which the toner hopper has been physically separated from the developer roller housing. The device holds the toner hopper and developer roller housing in proper alignment to one another and the component parts within. The nature of this device is disclosed and described herein.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: June 5, 2001
    Assignee: Static Control Components, Inc.
    Inventors: Jerry Stevens, William L. London
  • Patent number: 6163934
    Abstract: A multi-purpose paper clip formed of a strand of flat cross section of a resilient material has a first loop portion and a second loop portion that are joined by mutually crossing portions, the first loop portion and second loop portion being of the same hand relative to either crossing portion and being spaced apart in opposed relation so as to form bights facing the crossing portions and each other.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: December 26, 2000
    Inventor: Damaso Crespo Fuster
  • Patent number: 6122996
    Abstract: A hydrostatic transmission design including externally mounted protrusions or devices for creating a durable, visible coding system. A clip means is also disclosed for securing to the ends of the axle horns to protect the casing from contact with vehicle wheels. The transmission also includes a friction pack for improved control of the transmission, having a control arm which is not secured directly to the external housing of the transmission.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: September 26, 2000
    Assignee: Hydro-Gear Limited Partnership
    Inventors: Raymond Hauser, Craig Wigness, Thomas Langenfeld, William Herbert Ward
  • Patent number: 5871194
    Abstract: The invention teaches a hinged clip (10) comprising two arms (22), each arm having a free end (34) and an extension forming the other end, resilient bias means urging the free ends together, the extensions being movable towards one another against the force of the resilient bias means to separate the said free ends characterised in that the resilient bias means is non-removably secured to each arm. An edge protector for an article (14) having sides (16) joined by an edge (12) is also taught, as is the method of manufacture and use.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: February 16, 1999
    Assignee: Aston Packaging Limited
    Inventor: Timothy Corben Morley
  • Patent number: 5683405
    Abstract: A vascular occluder clip including a resiliently-biased pair of clamping elements extending transversely to longitudinally-extending members. Gripping loops or pads are provided for grasping by the user and compression of the members against the biasing force to separate the clamping elements. The gripping loops or pads extend from the longitudinal members on the opposite side thereof from the clamping elements.
    Type: Grant
    Filed: August 25, 1995
    Date of Patent: November 4, 1997
    Assignee: Research Medical Inc.
    Inventors: Vahe S. Yacoubian, Douglas G. Fox, John T.M. Wright, Donald P. Elliott
  • Patent number: 5535486
    Abstract: This invention is about a spring-wire paper clip formed in a single plane without any overlapping of its parts, with a stronger hold because of the unique configuration of its inner frame whose left leg, instead of moving straight downward curves inward to the right, diagonally, where it joins the right leg of the outward frame, both moving straight down parallel and close to each other in forming a stronger gripping engagement on papers. This unique inner frame also makes possible a novel positioning of the inner frame's end portion underneath and hooded by its own uppermost loop, which together with the outer frame's end portion positioned close to the very top of the clip, practically eliminates any damage to paper held.The unique inner frame also makes it possible for manufacturers to select the strength of the clip's hold, without having to radically change its configuration, to use less wire, and to make slimmer or smaller clips which occupy less space at the left corner.
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: July 16, 1996
    Inventor: Camilo P. Cabili
  • Patent number: 5511661
    Abstract: For mounting in a notebook having outer covers and a spine, a sheet of clips comprises: a frame having inner and outer side rims, top and bottom cross rims, and optionally at least a rib connected between a pair of the rims; a set of paper clips integrally connected to the frame via the rims and the rib; each of the clips including an outer retainer, an inner retainer and a yoke connecting the outer retainer and the inner retainer; a rupturable junction extending between the frame and the yoke.
    Type: Grant
    Filed: August 16, 1994
    Date of Patent: April 30, 1996
    Assignee: Clix Products, Inc.
    Inventors: Robert G. Karlis, Gordon A. Vinther
  • Patent number: 5419018
    Abstract: A sheet-like, integral plastic accessory for a notebook is disclosed featuring at least one paper clip sheet. Each paper clip sheet is formed with a frame as defined by a pair of parallel spaced rims and a pair of outer cross rims. A plurality of ribs extend between the parallel spaced rims in parallel spaced relation to one another. A plurality of paper clip configurations extend from the rims and the ribs. Each paper clip configuration is formed with inner and outer elongated bands joined at one end at a nexus. A pair of curved segments define the nexus at one side thereof, with a constricted portion defining the same at an opposed side. Preferably, a pair of shoulders straddle the constricted portion and a burr connects the constricted portion of the paper clip configuration to the rims and the ribs. Preferably, the nexus is wider and stronger adjacent the curved segments than at the constricted portion, allowing the inner band to bend thereat with respect to the outer band without fracture.
    Type: Grant
    Filed: November 1, 1993
    Date of Patent: May 30, 1995
    Assignee: Clix Products, Inc.
    Inventors: Robert G. Karlis, Linda M. Gauger, Richard J. Keohan
  • Patent number: 5409499
    Abstract: A sterile one-piece suture clip having a first clamping member having a distal end, a first proximal end and a first clamping surface, a second clamping member having a second proximal end, a second clamping surface, and a locking surface and being pivotally connected at said second proximal end by a hinge to said first proximal end of the first clamping member, a plurality of leg members each having an inner surface, a side surface and an end, said legs being disposed in sets comprising U-shaped members in combination with the first clamping surface, the inner surface of each leg in the set facing the opposite leg thereof, said inner surface being beveled from the end of the leg toward the first clamping surface to form ears, said U-shaped members being attached to the first clamping member, said side surface of said legs being beveled from the end of the leg toward the first clamping member thereby forming a channel said first clamping member being adapted to be placed on a suture to be clipped, said channe
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: April 25, 1995
    Assignee: Ethicon, Inc.
    Inventor: Sung S. Yi
  • Patent number: 5406680
    Abstract: A family of improved paper clips and a process for their formation is disclosed which comprises a central bridge leg joining two overlapping and contacting gripping jaws. Each gripping jaw lies in its own plane and controlled torsional forces in the legs comprising the jaws provide for independently controlled gripping forces at multiple tangential contact points. The controlled gripping forces and two layer planar shape result from a substantially elastic transformation from a preceding stepped helix wire form. The advantages include a firm grip on thin or thick packets, the ability to stay flat on thick packets of material, resistance to distortion, special features to aide application to thin or thick packets of material, and modest size facilitating its general purpose use.
    Type: Grant
    Filed: July 28, 1993
    Date of Patent: April 18, 1995
    Inventor: Morton Silverberg
  • Patent number: 5214825
    Abstract: An Improved Clip with multiple panels that enables user to secure multiple groupings of gathered papers or the like without wrinkling or cramping. Also, this clip is able to accommodate thin or thick insertions or both simultaneously. The clip having a vertically raised neck(s) and having centrally located stopping elements to prevent the clip from wandering. The outermost panel is larger than the middle panel and the middle panel is larger than the center panel. The front of the center and middle panels are slanted toward the front. The clip also has a rear solid portion having a back edge adapted to be pushed down by fingers. The clip will allow insertion of a single of paper or a stack of papers. The clip is made of one piece by plastic by injection molding and stamped metal sheet, or single wire.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: June 1, 1993
    Inventor: Suzy C. Hirzel
  • Patent number: 5170535
    Abstract: An improved paper clip is provided with an extra loop of wire so that the clip can be used from either end to attach papers together. Modifications include providing the clip with serrated gripping edges, bend points and adhesively attachable labels.
    Type: Grant
    Filed: February 4, 1992
    Date of Patent: December 15, 1992
    Inventor: Billie E. Strong
  • Patent number: 5113554
    Abstract: There is disclosed a clip which is molded of plastic and which has a design particularly adapted to retain fabrics on the crossbar of a conventional clothes hanger. The clip has a C-shaped body having opposite, coincident legs dependent from a central bight section, an integrally formed prong dependent from the bight section and an upright base leg projecting out of the plane of the clip body with a first reverse bend adjacent the base leg and a return prong section which is inclined towards the plane of the clip, and a second reverse bend in the prong to provide an upwardly curled tip which also projects out of the plane of the clip. The height of the base of the prong and the first reverse bend are sized to provide sufficient clearance from the body of the clip to permit snap-over retention of the clip on the cross bar of a hanger. Preferably, the body legs and the prong have textured or roughened opposing surfaces to enhance their gripping properties.
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: May 19, 1992
    Inventors: Christine A. Gallo, Bianca M. Giglio
  • Patent number: 5056748
    Abstract: A molded plastic holder for printed material includes a substantially flat support panel which is designed to be mounted to any vertical surface. Molded as part of and integrally joined to the support panel along a lower edge is a first curved clip which curves outwardly at its base so as to provide a clearance space to receive the material and then extends inwardly in order to create a pressure point which presses against any material placed in the holder in order to retain the material securely in place. Also molded as part of and integrally joined to the support panel is a second curved clip of virtually identical construction to the first curved clip. The clips each have an inherent spring tension which allows each clip to be easily pulled forward for the insertion of material into the holder and to spring back to apply the desired holding force. Snap-on legs are used when the holder is to be table-mounted.
    Type: Grant
    Filed: May 31, 1990
    Date of Patent: October 15, 1991
    Assignee: Deflecto Corporation
    Inventor: Stephen T. Meyer
  • Patent number: 5010629
    Abstract: An improved clip with a neck that enables user to easily secure the thick gathered papers or the like without wrinkling or cramping. The clip having a vertical neck at the back of the clip, between the upper grip and lower panel, and lower panel is larger than the upper grip. Lower grip is flat and straight but upper grip is slanted. Front tip of the upper grip is almost the same level as the front tip of the lower panel and rear part of the upper grip is the same height as the top of the neck. The clip also has a rear solid portion having a back edge adapted to be pushed down by fingers. The clip will allow one to insert approximately 1/4" to more than 1/2" papers or like material.The shape of the clip is generally round at the front tip and generally straight at the rear end which is a handle portion. The upper grip may have an additional smaller grip and it can/may hold an additional layer of the paper or like.
    Type: Grant
    Filed: December 27, 1989
    Date of Patent: April 30, 1991
    Inventor: Suzy C. Hirzel
  • Patent number: 5002249
    Abstract: A molded plastic holder for printed material includes a substantially flat support panel which is designed to be mounted to any vertical surface. Molded as part of and integrally joined to the support panel along a lower edge is a curved clip which curves outwardly at its base so as to provide a clearance space to receive the material and then extends inwardly in order to create a pressure point which presses against any material placed in the holder in order to retain the material securely in place. The intergrally molded clip has an inherent spring tension which allows it to be easily pulled forward for the insertion of material into the holder and to spring back to apply the desired holding force.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: March 26, 1991
    Assignee: Deflecto Corporation
    Inventor: Stephen T. Meyer
  • Patent number: 4943024
    Abstract: A molded plastic holder for printed material includes a substantially flat support panel which is designed to be mounted to any vertical surface. Molded as part of and integrally joined to the support panel along a lower edge is a curved clip which curves outwardly at its base so as to provide a clearance space to receive the material and then extends inwardly in order to create a pressure point which presses against any material placed in the holder in order to retain the material securely in place. The integrally molded clip has an inherent spring tension which allows it to be easily pulled forward for the insertion of material into the holder and to spring back to apply the desired holding force.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: July 24, 1990
    Assignee: Deflecto Corporation
    Inventor: Stephen T. Meyer
  • Patent number: 4665594
    Abstract: A multi-purpose clip for holding papers, bills, and the like formed a one continuous material, where there is formed an inner heart-shaped loop and an outer heart-shaped loop. The inner loop is provided with a pair of end-portions which overlap and crisscross such that in a first state of the end-portions the two end-portions are biassed toward each other, and in a second state are free from contact with each other. The end-portions provide a torsion effect to aid in the holding of workpieces in the clip, as well as allowing for the clip to be used as a key ring, and the like. The clip may be used such that the workpieces may be inserted and held in three different manners utilizing different portions of the clip as the portions sandwiching therebetween the workpieces.
    Type: Grant
    Filed: February 27, 1986
    Date of Patent: May 19, 1987
    Inventor: Hans R. Wagner
  • Patent number: 4658479
    Abstract: Disclosed is a clip device and method of retaining multiple materials in a separated and organized fashion and which is reversible in design to restore the clip to its undeformed tension if excessively deformed. The clip comprises an oval portion which continues into an essentially rectangular portion positioned on the oval portions between the arcuate ends thereof, with the rectangular portion having a width at least equal to the width of the oval. It can be used for organizing papers or holding keys in two separate portions. Also disclosed is a key holder for separating keys in two arcuate sections and a method of securing a spare key to an object.
    Type: Grant
    Filed: March 13, 1986
    Date of Patent: April 21, 1987
    Inventor: Calvin E. Sanders
  • Patent number: 4597139
    Abstract: The paper clips of the present invention are more gradually curved to have a substantial lateral extent, so that they will hold a much thicker stack of papers without deformation or buckling, as compared with the standard narrow sharply curved paper clips. More specifically, when a predetermined length of wire is employed, the clips have a ratio of the predetermined length to the width, and to the height of the clip, of between about 4 and 6. In addition, where one end of the wire is arranged to engage a stack of papers on one side and the other end of the wire is arranged to engage the stack of papers on the other side, at a point between the two ends there is a gradually curved portion corresponding generally to one-half the circumference of a circle having a diameter in the order of the transverse dimension of the clip.
    Type: Grant
    Filed: January 27, 1984
    Date of Patent: July 1, 1986
    Inventor: Po C. Lau
  • Patent number: 4480356
    Abstract: A double-grip, a one-piece clip is formed by having a single piece of wire being continuous and bent to form two gripping units on one side of the items desired to be gripped and two gripping units on the other side of the items desired to be gripped.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: November 6, 1984
    Inventor: Donald A. Martin