Patents Issued in October 2, 1979
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Patent number: D253066Type: GrantFiled: October 17, 1978Date of Patent: October 2, 1979Inventor: Narbik A. Karamian
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Patent number: D253067Type: GrantFiled: August 15, 1977Date of Patent: October 2, 1979Inventor: Ronald C. Hartley
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Patent number: D253068Type: GrantFiled: November 7, 1977Date of Patent: October 2, 1979Inventor: Richard F. Ross
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Patent number: D253069Type: GrantFiled: January 9, 1978Date of Patent: October 2, 1979Assignee: Walker Corsweller & Company LimitedInventor: Kenneth A. Ogilvie
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Patent number: D253070Type: GrantFiled: September 6, 1977Date of Patent: October 2, 1979Inventor: John B. Gilleran
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Patent number: D253071Type: GrantFiled: June 6, 1977Date of Patent: October 2, 1979Inventor: Donald Montez
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Patent number: D253072Type: GrantFiled: January 17, 1978Date of Patent: October 2, 1979Inventor: Georges Blanc
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Patent number: D253073Type: GrantFiled: December 19, 1977Date of Patent: October 2, 1979Assignee: General Electric CompanyInventor: Walter C. Anderson
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Patent number: D253074Type: GrantFiled: November 14, 1977Date of Patent: October 2, 1979Assignee: Clairol IncorporatedInventor: John Wistrand
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Patent number: D253075Type: GrantFiled: February 17, 1978Date of Patent: October 2, 1979Inventor: Arthur B. Renny
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Patent number: PP4462Abstract: This novel rose variety is a mutation of Mercedes and differs therefrom in its blossom colors which are a slightly darker shade of red than that of the parent variety.Type: GrantFiled: December 27, 1977Date of Patent: October 2, 1979Assignee: Jackson & Perkins CompanyInventor: Hendrik W. Oly
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Patent number: RE30104Abstract: A loading dock leveling apparatus including a ramp pivotable about its rear end and having a pivotable lip on its forward end. Apparatus is provided for projecting the lip outwardly after the ramp is raised beginning when the ramp is walked down to provide that the lip will engage the bed of a vehicle to be loaded or unloaded. The projecting apparatus includes a knuckle joint which pivots to projecting position on the ramp upswing and which is subsequently pivoted by a lever to release the projecting apparatus during the walk down but before the ramp descends to the highest serviceable vehicle level. A lip lock is provided for holding the lip in its projected position until the lip rests on the bed of the vehicle to be unloaded or until the ramp passes well below dock level and the lip lock is disengaged by a lip lock release.Type: GrantFiled: March 11, 1977Date of Patent: October 2, 1979Assignee: Harsco CorporationInventor: Peter B. Burnham
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Patent number: RE30105Abstract: A thin elongated hot wire is bent in half in an elongated cavity enclosed on its sides. The ends of the wire are supported by a circuit board at one end of the cavity and the middle of the wire is supported under tension by a quartz rod at the other end of the cavity, so the two halves of the wire are in spaced, approximately parallel relationship from each other and in spaced relationship from the sides of the cavity. The cavity is formed in a housing that comprises a block having a first flat surface and a plate having a second flat surface removably attached in abutment with the first surface of the block. The cavity is a groove formed in the first surface that has an open side enclosed by the second surface.Type: GrantFiled: April 29, 1977Date of Patent: October 2, 1979Inventor: Jerome A. Rodder
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Patent number: RE30106Abstract: Metal alloys in an amorphous state are employed in the fabrication of cutting implements such as razor blades or knives. The implement may be formed from the amorphous metal or a coating of the amorphous metal may be applied. Such products may be formed from a ribbon of the amorphous metal alloy which has been prepared by quenching the molten metal or by coating the amorphous metal alloy on a suitable substrate such as by a sputtering procedure or vapor, chemical or electro-deposition of the alloy on the substrate.Type: GrantFiled: February 21, 1978Date of Patent: October 2, 1979Assignee: Allied Chemical CorporationInventors: Donald E. Polk, Robert C. Morris
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Patent number: RE30107Abstract: A recording process, wherein an organic reducing compound being present in a supported or self-supporting layer and corresponding to one of the following general formulae (I) and (II): ##STR1## wherein: R.sub.1 represents hydrogen, an aliphatic group of a cycloaliphatic group, andR.sub.2 represents an aliphatic oxy group, a cycloaliphatic oxy group, an aryloxy group, an amino group of the formula ##STR2## in which R.sub.3 and R.sub.4 (same or different) represent hydrogen, an aliphatic, a cycloaliphatic or an aromatic group or R.sub.3 and R.sub.4 represent together the necessary atoms to close a heterocyclic nitrogen containing nucleus; ##STR3## wherein R.sub.5 represents an aliphatic, cycloaliphatic, aromatic or heterocyclic group, is caused to effect in said layer under the influence of information-wise heating an information-wise reduction of a reducible reaction partner.Type: GrantFiled: July 18, 1978Date of Patent: October 2, 1979Assignee: AGFA-GEVAERT N.V.Inventors: Urbain L. Laridon, Albert L. Poot, Jozef F. Willems
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Patent number: T987001Abstract: an improved belt loader of the type used to remove debris from a roadway includes an angled sweeping assembly comprising a pair of overlapping power driven rotary brushes with the downstream end of the lead brush overlapping the upstream end of the trailing brush so that the debris swept by both brushes is moved across the assembly and deposited by the side of the roadway.Type: GrantFiled: April 9, 1979Date of Patent: October 2, 1979Assignee: The Pennsylvania Department of TransportationInventor: Louis G. O'Brien
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Patent number: T987002Abstract: a reservoir (10) for a scavenging system has a suction line (12) of a pump disposed within the reservoir and a float mechanism (24) that controls the fluid pathway (21) from the reservoir into the suction line (12) in response to the height (22) of the fluid within the reservoir. This system restricts large volume of air from being drawn into the suction line as the fluid level in the reservoir is lowered. The float mechanism includes a sealing arrangement (25) to restrict air from being introduced into the openings from around the float mechanism (24) during operation of the system. An apparatus (26) is also associated with the float mechanism (24) to cause the pathway (21) to be significantly lowered relative to the level (22) of the fluid and the openings (18) in the suction line (12).Type: GrantFiled: October 12, 1978Date of Patent: October 2, 1979Assignee: Caterpillar Tractor Co.Inventor: Robert C. Hansen
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Patent number: T987003Abstract: a retroluminometer for measuring retroreflectivity of signs or markings at their actual point of use comprises (1) a source of alternating light; (2) optical means for both directing the alternating light onto a sign or marking that is to be tested and for transmitting light retroreflected by the sign or marking onto a panel within the retroluminometer; (3) a matrix of light-transmitting means arranged on the face of the panel; (4) photosensing means optically connected to the light-transmitting means and adjustable to sense and measure the light from different ones of the light-transmitting means, thereby measuring retroreflection at different angles of deviation from the axis of the light beam incident on the sign or marking; and (5) electric circuitry for presenting the photosensed light as a visually-readable measurement.Type: GrantFiled: July 31, 1978Date of Patent: October 2, 1979Assignee: Minnesota Mining and Manufacturing CompanyInventors: Norbert L. Johnson, Michael J. Knowd
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Patent number: T987004Abstract: a system for determining the extent of overlap between two primary polygons which are simply connected and have vertices of known coordinate values. Each of the sides in each polygon is first defined in terms of parameters which have limits of constant values as shown by block 14 in FIG. 2. Then, as set forth in block 15 in FIG. 2, a determination is made as to whether each of the sides in one of the polygons intersects any side in the other polygon by respectively equating the parametric definitions of each of the sides in the first polygon with the parametric definitions of each of the sides in the second polygon. A pair of sides so equated will intersect if each side has a resultant parameter within said limits. Routines are provided for determining when intersections will be non-degenerate, and when they will be degenerate, and when there will be no intersections thus indicating that the polygons either completely overlap or have no overlap at all.Type: GrantFiled: January 17, 1979Date of Patent: October 2, 1979Assignee: International Business Machines CorporationInventors: Michael Feuer, Ning Nan
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Patent number: 4169292Abstract: An artificial middle ear prosthesis may be used to replace the ear structure from the bony ear canal up to the oval window of the vestibule. The artificial middle ear includes a tube to replace at least part of the bony ear canal, an annulus to connect an artificial ear drum to the tube, a complex structure to replace the hammer and anvil of a human patient and a piston means connected to the complex structure to replace at least part of the stirrup. According to one embodiment the piston may directly connect the complex hammer/anvil structure to the remaining portion of the oval window of the vestibule. According to another embodiment, the piston may be terminated in a cup shaped socket which will cradle the remaining structure of a stirrup. The bony ear canal tube, the umbo section connecting the complex hammer/anvil structure to the ear drum and the end of the piston directly contacting the stirrup or the oval window are preferably coated with a microporous biocompatible material such as Proplast.Type: GrantFiled: November 14, 1977Date of Patent: October 2, 1979Inventor: Johannes J. Grote
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Patent number: 4169293Abstract: A liquid level control system for a hydrotherapy vessel has a pressure sensing device located in the vessel. The pressure sensing device activates a switch which shuts off the hydrotherapy pump when the water in the vessel drops below a predetermined level.Type: GrantFiled: February 8, 1978Date of Patent: October 2, 1979Assignee: Chanso CorporationInventor: Albert E. Weaver
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Patent number: 4169294Abstract: A platform bed frame for a platform bed is provided which is capable of supporting a conventional mattress and box spring combination, or a mattress alone. The platform bed frame includes side plates and end plates which are connected together by tapered pins on the side plates and end plates which coact to produce a rigid structure.Type: GrantFiled: March 6, 1978Date of Patent: October 2, 1979Inventor: George M. Harris
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Patent number: 4169295Abstract: A mattress structure wherein a frame includes an activatable air blower which is to be used to inflate a mattress which is to be stored in a collapsed position within a storage compartment of the frame. Upon activation of the blower, the mattress is to automatically extend from the frame and will normally be located upon a floor forward of the frame in an inflated condition. During extension of the mattress, the mattress storage compartment is automatically closed.Type: GrantFiled: October 13, 1977Date of Patent: October 2, 1979Inventor: Michael E. Darling
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Patent number: 4169296Abstract: A personnel bridge for connecting a stationary offshore working platform 1 to a floating housing platform 2. A first span 3 is vertically pivoted at 5 to the platform 1 on one end, and vertically pivoted at 6 to the outer end of a second span 4 whose inner end is mounted to the platform 2 by a ball joint 8. The outer ends of the spans 3, 4 are also connected through a horizontal pivot axis 7, whereby movements between the platforms 1, 2 in three mutually orthogonal directions may be accommodated. The spans may be supported from a tower 10 by a fixed cable 9 pivotable at one end about an axis 11 aligned with the vertical axis 5, and by a winch controlled cable 12.Type: GrantFiled: March 21, 1978Date of Patent: October 2, 1979Assignees: Ingenieursbureau Marcon (Marine Consultants) B.V., Peder Smedvig ShipownersInventors: Johannes Wipkink, Harald Johansen
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Patent number: 4169297Abstract: A handle having a sprung forked end is releasably securable to a cleaning-implement body by engagement of the fork arms in apertures in the body by means of a clamping device engaging between said arms and being movable, by rotation, displacement or pivoting, to spread the arms apart or draw them together. Various forms of clamping device (comprising a cam disc and/or a slider, or a pivoting lever), various configurations of fork arms and various features of said body are described.Type: GrantFiled: February 18, 1977Date of Patent: October 2, 1979Assignee: Coronet-Werke Heinrich Schlerf GmbHInventor: Georg Weihrauch
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Patent number: 4169298Abstract: A windshield wiper adjustment assembly for eliminating chatter and squeak and effecting smooth travel of a windshield wiper as it is drawn across a windshield. The adjustment assembly allows the angular displacement of the wiper retainer to be selectively varied.Type: GrantFiled: April 12, 1978Date of Patent: October 2, 1979Inventor: Gordon Smith
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Patent number: 4169299Abstract: An apparatus for cleaning parting surfaces of plastic molds, which ensures complete and efficient removal of the flash adhered to the parting surfaces of the mold. The cleaning apparatus comprises a carriage reciprocatably mounted on a supporting assembly, and cleaning means mounted on the carriage. The cleaning means comprises a pair of cleaning heads each comprising a spaced pair of air blasting members and a rotary brush arranged between said air blasting members, both of which are provided in the head body. The air blasting members blast the air against the respective parting surfaces of the mold sections, and the rotary brushes remove the flash from the respective parting surfaces. The removed flash dust is sucked up and collected by a dust collecting member provided in the head body and connected to suction means.Type: GrantFiled: March 7, 1977Date of Patent: October 2, 1979Assignee: Dai-Ichi Seiko Co., Ltd.Inventor: Kazuo Bandoh
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Patent number: 4169300Abstract: For tenderizing meat, an apparatus is described which drives a multiplicity of tenderizing knives into the meat. The knives are carried by a reciprocable ram head with a predetermined stroke. A stripper plate associated with the ram head follows the latter during its downward stroke, and presses against the meat to strip it from the knives buried in it when the knives are withdrawn. A hydraulic circuit controls the required reciprocation of the stripper plate. The knives are mounted in pairs on a shaft which is spring-biased in such a way that an impact of the knives against an obstacle instantly removes the bias exerted by the spring. Meat to be tenderized may be placed intermittently under the stripper plate either manually or utilizing a conveyor belt.Type: GrantFiled: November 23, 1977Date of Patent: October 2, 1979Inventor: Timothy J. McCullough
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Patent number: 4169301Abstract: In gilling or stretching apparatus wherein a plurality of pin bars are driven and guided in a circuitous path including a stretching run and a return run, with threaded spindles engaging the pin bars along said runs, means are provided to retard the speed of movement of the pin bars before they engage the drive spindles so as to decrease noise in the operating apparatus and reduce wear of the pin bars and spindles. Such retarding means comprises cushioning wheels disposed at the entry end of the stretching run and cushioning rollers disposed at the exit end of the stretching run. The cushioning wheels and rollers have cushioning surfaces arranged to be engaged by the moving pin bars at an acute angle to the tangent to the surface at the point of engagement. Means are provided to insure that the cushioning wheels and rollers rotate at a slower speed than the speed of the travelling pin bars.Type: GrantFiled: December 5, 1977Date of Patent: October 2, 1979Assignee: Hanseatischer Maschinenbau G.m.b.H.Inventor: Hans Kaiser
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Patent number: 4169302Abstract: A fabric covered button which is of a two-piece construction and includes a button portion which advantageously can have any one of a number of different types of securement means integrally or otherwise formed with it, and a locking ring. The button portion consists of a button head having a stem having a plurality of serrations formed annularly in it integrally formed with the underside of the button head. Any one of a number of different attachment means are or can be integrally formed with the stem, at the terminal end thereof. The fabric is draped over the button head and extended around its edge to the rear thereof. A flat washer-like locking ring having an interior diameter proportioned to forcibly fit over the stem lockingly engages with the respective ones of the serrations. The edges of the fabric at the rear of the button head are lockingly secured between the rear of the button head and the locking ring, by the locking ring when it is secured in place to the stem.Type: GrantFiled: June 1, 1978Date of Patent: October 2, 1979Inventor: Bruce A. Ferguson
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Patent number: 4169303Abstract: Structures are provided in strip or sheet-like fastening materials formed by molding together with an apparatus and method for producing same. In one form, a strip-like fastening material is formed by molding a plurality of narrow strips, each containing at least one row of fastening elements extending longitudinally therealong and guiding said strips into edgewise abutment whereafter they are fastened together, such as by welding, to form a wider strip or sheet of fastening material containing a plurality of rows of molded fastening elements. The fastening elements may comprise molded hooks with or without barbs, arrowhead formations, mushroom-like formations, loops of plastic or otherwise formed formations which may intermesh with the same or different formations of another strip to effect the fastening of the two strips together. In a particular form, hook or barb-shaped elements are formed along respective strips of metal or plastic by stamping or molding and the strips are hingedly joined together.Type: GrantFiled: November 24, 1976Date of Patent: October 2, 1979Inventor: Jerome H. Lemelson
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Patent number: 4169304Abstract: One or more thin metal sheets are formed as a hollow shell having a longitudinal load-bearing axis. The thin-walled hollow shell is filled with a core of a plastic foaming material including a suitable foaming agent which foams to fill the shell and to exert a force on the shell radially outwardly of the longitudinal axis thereby forming a solid composite column. The radially outward force deflects the shell and permanently places the shell in lateral tension to increase the load bearing capability of the column. When more than one sheet is used, the elongated edge portions of the sheets are configured to loosely interfit with one another when the shell is initially formed, and the plastic foaming material causes a positive locking of the interfitted edge portions. Thus thin, non-load bearing gauge aluminum is converted into a load bearing structural element.Type: GrantFiled: February 16, 1978Date of Patent: October 2, 1979Inventor: Burton A. Binder
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Patent number: 4169305Abstract: There is provided a roller for inserting filler material to the proper depth in crevices comprising a circular structure having a central circular section of at least 1/16" of an inch thick but less than 1/4 of an inch thick, a first and second truncated right angle cone sections of a smaller diameter than said central circular section and appended on each side of said central circular section at its base line to which is attached a third or fourth circular section of uniform thickness appended to the truncated side of said conical section. The circular structure is supported on a shaft which shaft is supported by two-support members which are connected to a base plate which may be attached to a handle. This construction allows the worker to grasp the handle and utilizing said circular structure which is free to rotate on said shaft such that the leading edge of said central circular section can be utilized to force filler material to the proper depth in a crevice.Type: GrantFiled: May 18, 1977Date of Patent: October 2, 1979Assignee: General Electric CompanyInventor: Edward G. Kruszona
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Patent number: 4169306Abstract: A tool for detaching a mechanically and adhesively secured retainer member from its mounting. The tool includes a base member supportable on a workpiece and having a lift element extending therethrough for rotary and axial movement relative thereto. The lift element is provided with a radially projecting foot or blade having a sharp edge for penetrating the adhesive material and insertable behind a flange of the retainer member for prying the latter loose from its mounting.Type: GrantFiled: November 25, 1977Date of Patent: October 2, 1979Assignee: Libbey-Owens-Ford CompanyInventor: Wallace F. Krueger
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Patent number: 4169307Abstract: A clinch tool and method for clamping a grid frame to a coil in which a clinch component is fed automatically into a space formed by the tool between the grid frame and coil with the clinch component saddled in position on the grid frame to be bent to retain the coil in a locked condition to the grid frame.Type: GrantFiled: February 22, 1978Date of Patent: October 2, 1979Assignee: Kay Springs, Inc.Inventors: Donald H. Weinzimer, Edwin G. Krakauer
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Patent number: 4169308Abstract: A specialized sign fitting together with the process of using said sign fitting to install signs on sign supports, such as walls, is disclosed. The specialized sign fitting includes a threaded male member having a protruding attachment member, such as a wood screw, for fastening to the back of the sign. The fitting has an overlying female member having the external configuration of a bolt. This mounted bolt configured female member is used to rotate and fasten the male member at the protruding attachment member into the sign. With a plurality of fasteners installed on the back of the sign, the female members are removed to expose male member mounted scribes. In the shop, these female member mounted scribes are then impressed with the sign iself onto a sign mounting templet. In the field, the templet containing both the scribed locations of the sign fasteners as well as typically an outline of the sign is first hung on the sign mounting location.Type: GrantFiled: February 16, 1978Date of Patent: October 2, 1979Assignee: Federal Signal CorporationInventor: Robert W. Minogue
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Patent number: 4169309Abstract: A method of making a sight glass assembly generally including forming a housing having an opening therethrough provided with an annular wall, forming a lens having an annular peripheral wall provided with a diameter greater than the diameter of the housing wall at predetermined equilibrium conditions, effecting a change in the predetermined equilibrium conditions of the lens and housing sufficient to cause a dimensional change between the diameters of the housing and lens walls sufficient to permit the insertion of the lens into the opening of the housing, inserting the lens into the housing opening while maintaining the change in conditions so that the lens wall is positioned in opposed relation to the housing wall, and maintaining the lens in the opening with the lens and housing walls disposed in opposed relation while permitting a return to the equilibrium conditions of the lens and housing whereby the housing and lens wall will engage to place the lens in radial compression and form a fluid tight seal.Type: GrantFiled: June 27, 1978Date of Patent: October 2, 1979Inventor: Charles E. Meginnis
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Patent number: 4169310Abstract: An improved tool for wrapping wire around an electrical terminal to make an electrical connection. The tool includes a bit and a sleeve for receiving the bit. One end of the bit has a connecting member for coupling the bit to the chuck of a hand-held drive motor. The opposite end of the bit is provided with a tip having a recess axially aligned with an axially extending groove formed in one side of the main body of the bit. A discontinuity between the recess and the groove is defined by a ridge having a pair of relatively convergent edges which extend toward the axis of the bit and terminate at a notch axially aligned with the bottom of the groove in the bit body. A crescent shaped projection extends axially outwardly from one side of the tip to wrap the end of the wire against the terminal at the end of a wire wrapping tool.Type: GrantFiled: March 6, 1978Date of Patent: October 2, 1979Assignee: Daniel G. NilssonInventor: Charles R. Murphy
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Patent number: 4169311Abstract: An apparatus for cutting vegetation wherein at least one line member protrudes exteriorly of the sidewall of a housing which is rotatable about a rotating axis. The line member is a tape and is wound upon a spool, which is mounted within the housing so that the width, which is greater than the thickness, is perpendicular to the plane of the spool. The flat tape line member is formed of a flexible band of material which extends exteriorly of the housing in a trailing position. Cutting means are incorporated to effect cut off of the line member during rotation of the housing and dispensing means are provided to extend additional line member a controlled increment of length during rotation of the housing. The cutting means is provided to cut off the excess end of the worn or broken line member. A clamping device clamps the line member to the housing when it is not rotating to prevent retraction of the line member into the housing.Type: GrantFiled: November 17, 1976Date of Patent: October 2, 1979Inventors: Dale D. Evenson, Virgil H. Stair
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Patent number: 4169312Abstract: A knife accommodating interchangeable blades. The knife includes a blade having a tang extending from its base, and an elongate handle having a front, blade-receiving region and an opposed back region. An elongate lever having opposed pivot and locking points is attached at its pivot point in the back region of the handle for swinging toward and away from a locked position in which the lever is axially aligned with the handle. The lever provides, adjacent its pivot point, a cammed surface dimensioned to engage a spring arm within the handle, thus to lock the lever in its locked position. The blade tang is securely held within a cavity defined in part by the locking point of the lever, with the latter in locked position.Type: GrantFiled: August 28, 1978Date of Patent: October 2, 1979Inventor: Alfred C. Mar
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Patent number: 4169313Abstract: The drum deheader or cutter is for use in opening an end of a drum provided with a drum chime and comprises a base engageable with the outside surface of the drum, with the base having at one end an upstanding lug engageable with the top of the drum chime and having at the other end a shoulder engageable with the underside of the drum chime. A head is pivotally mounted on the base and is provided with an integral handle which extends in a direction away from said base and the drum. A blade is secured to the head for cutting the end of the drum adjacent the drum chime. An elongated operating lever is pivotally mounted on one end to the base and is connected to the head by a suitable linkage. A person may grip the handle with one hand and apply a force to the lever with the other hand thereby causing the head to pivot and the blade to be lowered into cutting engagement with the end of the drum.Type: GrantFiled: May 3, 1978Date of Patent: October 2, 1979Assignee: Equipment Company of AmericaInventor: Elmer T. Thurmond, Jr.
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Patent number: 4169314Abstract: A dental articulator for mounting stone dental casts by means of a screw engaging a threaded aperture in the base of the dental casts in lieu of the prior method of mounting the casts by means of plaster. The threaded apertures may be formed directly into the casts, or by the preferred method of embedding plastic threaded buttons into the stone casts. This mounting method permits a more rapid mounting of the dental casts in the articulator and also permits a very rapid removal and remounting of the casts to their precise prior occlusion position.Type: GrantFiled: September 27, 1977Date of Patent: October 2, 1979Inventors: Roger W. Mercer, Louis E. Hay
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Patent number: 4169315Abstract: An ellipsograph utilizing dynamic projection method for drawing an ellipsoid comprising a central rod having a circle cap formed on the top portion thereof and a positioning needle secured at the end thereof; a sleeve on said central rod having a pair of horizontal beams secured thereto and extending radially therefrom; a pair of supports connected to said horizontal beams for holding a circle; a pair of guide balls inserted in the circular slot of the circle for defining the inclination of the circle; a rotational rod engaged with the sleeve having a pen stand and a roller seat equipped thereon; and a major axis rod slidable through a guide tube which is eccentrically secured to the circle. The circle preserves a fixed inclined position so that the path of the drawing pen on the pen stand will be elliptical, forming a truly mathematical ellipsoid.Type: GrantFiled: July 21, 1978Date of Patent: October 2, 1979Inventor: Lin Sin
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Patent number: 4169316Abstract: A vibration resistant measuring device is disclosed of the type which includes a scale and a scanning unit which is guided along the scale. This device includes a compensating mass connected to the scanning unit to counteract and reduce the tendency of the scanning unit to lift off the scale during periods of high acceleration.Type: GrantFiled: March 6, 1978Date of Patent: October 2, 1979Assignee: Dr. Johannes Heidenhain GmbHInventor: Alfons Ernst
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Patent number: 4169317Abstract: For measuring machined recesses having angled side walls with high accuracy and for measuring narrow grooves machined in workpieces, caliper legs are equipped interchangeably with contact ball extremities and narrow right angular leg extensions for use in measuring machined grooves. An interior workpiece contact pin electrically insulated from the contact ball extremity is electrically connected through a leg of the calipers with a first light emitting diode, while the contact ball extremity is similarly electrically connected with a second light emitting diode. The other leg of the calipers may constitute an electrical ground. A machinist user of the device endeavors to light both light emitting diodes by bringing the ball extremities into tangent contact with machined recess side walls while the interior contact pin is engaged with the bottom of the recess. In a different embodiment of the device, four diodes must be illuminated to assure the correct measurement.Type: GrantFiled: September 12, 1978Date of Patent: October 2, 1979Inventor: Miroslav B. Bone
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Patent number: 4169318Abstract: Apparatus for holding a lens to define the relative positions of the optical and geometrical centers. The apparatus is provided with means for applying a reference mark to the lens or affixing a holding member allowing the shaping and/or bevelling operations for adapting the lens to an eyeglass frame in optimum conditions.Type: GrantFiled: October 12, 1977Date of Patent: October 2, 1979Assignee: Proptis, S.A.Inventor: Antonio C. Cortes
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Patent number: 4169319Abstract: A gauge for measuring the thickness of a wet film on a surface comprises a circular disc having circumferentially spaced, calibrated notches around the outer periphery thereof. Finger grip elements are disposed at opposite sides of the disc and carry the disc for rotation relative thereto. The disc is rolled across the surface relative to the finger grip elements so that the notches are selectively wetted.Type: GrantFiled: September 6, 1978Date of Patent: October 2, 1979Assignee: Paul N. Gardner CompanyInventor: Paul N. Gardner
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Patent number: 4169320Abstract: A device providing a movable reference point for use in leveling objects such as house trailers and the like which extend over large areas. The device includes a reservoir which is carried on a stand that has a plurality of tubes extending out the bottom thereof. The tubes have magnets carried on the outer ends thereof for readily attaching to the object to be leveled. A screw jack is connected to the reservoir for raising and lowering the reservoir and the level of the liquid therein so as to set the liquid level in the tubes to a desired height. The tubes can be moved around the trailer without affecting the reference point.Type: GrantFiled: November 10, 1977Date of Patent: October 2, 1979Inventor: Lewis L. Bennett
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Patent number: 4169321Abstract: A heat exchanger heats fresh air moving to a product dryer by running the fresh air around hot exhaust tubes which are discharging from the dryer. Detergent sprays may be positioned to direct cleaning fluid into the tubes. The fresh air is introduced into a pre-dryer through pipes having nozzles which are at 30.degree. angles to the product path.Type: GrantFiled: April 19, 1978Date of Patent: October 2, 1979Assignee: Airtech Systems, Inc.Inventor: John A. Nichols
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Patent number: 4169322Abstract: Particulate treatment apparatus includes structure defining a particle treatment zone including a conveyor defining an imperforate lower particle treatment zone boundary. A chamber above the particle treatment zone receives a body of liquid, and means are provided for creating a zone of vapor within the chamber above the body of liquid. Nozzle tubes extend through the lower wall of the chamber and are disposed along the length and across the width of the treatment zone. The upper ends of the nozzle tubes extend above the level of liquid in the chamber while the lower ends of the tubes are disposed adjacent the imperforate transport surface of the conveyor. Vapor flows from the vapor zone through the tubes downwardly against the conveyor surface and fluidizes particles on the conveyor with concurrent vapor exchange so that the particulate material entrains a substantial amount of vapor as it is transported through the treatment zone.Type: GrantFiled: March 20, 1978Date of Patent: October 2, 1979Assignee: Wolverine CorporationInventor: Walter E. Buske