Patents Represented by Attorney Lloyd M. Forster
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Patent number: 5318484Abstract: Metal V-belt drive having small angle V-pulleys engaged by belt mounted pairs of bridging traction drive toggle elements radially loaded by belt tension to provide locking angle driving contact subject to free radial releasing upon leaving each pulley.Type: GrantFiled: April 6, 1993Date of Patent: June 7, 1994Inventor: Lloyd M. Forster
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Patent number: 5302119Abstract: Cooler pocket grate for use in conveying hot clinker from discharge end of cement kiln to cooled clinker processing area. Alternate stationary and moving grates constructed as stainless steel castings are provided with upper surface ridges having through holes for fan driven cooling air from underlying cooler bed compartments. Intermediate pockets between ridges retain clinker which serves as a grate wear resistant interface with kiln discharged hot clinker conducted along the cooler bed.Type: GrantFiled: November 30, 1992Date of Patent: April 12, 1994Inventors: A. J. Bartoletto, Ronald W. T. Birchard
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Patent number: 5294215Abstract: An adaptation of apparatus disclosed in U.S. Pat. No. 5,135,058 to provide foundations or perimeter walls is effected with the drilling of circular holes within a range of four to sixteen feet overlapping to provide continuous area coverage in the case of foundations with a minimum of overlap and to provide a minimum wall thickness in the order of hole radius in the case of containment walls.Type: GrantFiled: December 17, 1992Date of Patent: March 15, 1994Assignee: The Millgard CorporationInventor: V. Dennis Millgard
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Patent number: 5287602Abstract: U-bolt toggle latch clamp actuated by power cylinder having piston rod extending at right angles to toggle linkage reaching aligned relation upon U-bolt retraction to clamping position. The toggle linkage is pivotally connected at one end to a fixed reaction pin, at the other end to a U-bolt crosspin and at the center to the actuating piston rod.Type: GrantFiled: November 13, 1992Date of Patent: February 22, 1994Assignee: Delaware Capital Formation, Inc.Inventor: Henry Dykstra
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Patent number: 5286057Abstract: Comfort feature method and apparatus providing fictional resistance to retraction of the static loop of an automotive vehicle emergency inertia responsive shoulder belt retractor system. A light comfortable back tension imposed by shoulder belt engagement contact with the occupant is sufficient to initiate self-energized frictional resistance to arrest relatively heavy tension retraction without preventing belt retraction to an occupant contact or completely retracted condition upon any slack arising from occupant movement belt disengagement.Type: GrantFiled: September 8, 1982Date of Patent: February 15, 1994Inventor: Lloyd M. Forster
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Patent number: 5257774Abstract: Power actuated pull clamp having piston actuated external side links for pulling a pivoted clamp arm into clamping position. A generally cylindrical body having an external adjustable mounting thread has longitudinal side flats accommodating the actuating links within the thread circumference.Type: GrantFiled: November 22, 1992Date of Patent: November 2, 1993Assignee: Delaware Capital Formation, Inc.Inventor: Henry Dykstra
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Patent number: 5256001Abstract: System including method and apparatus for treating contaminated underwater sediment by lowering a cylindrical casing to an underbed, lowering a power driven Kelly bar with plural blade injecting and mixing tool fed with treatment material such as solidifying cement and flyash, providing a top circular cover for confining the sediment to be treated within the casing, injecting and mixing the treatment material through the Kelly bar and sequentially moving the casing with Kelly bar and top cover to adjacent treatment locations having full coverage provided with minimum overlap.Type: GrantFiled: January 28, 1993Date of Patent: October 26, 1993Assignee: Millgard Environmental CorporationInventor: V. Dennis Millgard
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Patent number: 5215295Abstract: Enclosed rotatable head power clamp has an adapter mounted on a base surface between a power cylinder and a clamp head with an actuating piston rod extending through the adapter guided by rollers in tracks formed in bifurcated hollow side plates completely enclosing the actuating linkage for a pivoted clamp arm. The clamp head connection to the adapter can be adjustable indexed to any of eight angular operative positions about the axis of the piston rod.Type: GrantFiled: June 29, 1992Date of Patent: June 1, 1993Assignee: Delaware Capital FormationInventor: Harold D. Hoover
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Patent number: 5188135Abstract: Blank washer for cleaning individual sheet metal blanks with a drawing compound liquid suitable for press operations which employs pressurized liquid vortex diffuser means to replace conventional scrubbing brushes. An enclosure with air knives at entrance and exit to the blank washer provides closed loop recirculating of both air and cleaning liquid, which is filtered and repumped to plenum chambers feeding individual vortex diffuser cylindrical outlets which discharge liquid vortexes in close proximity to the passing sheet metal.Type: GrantFiled: September 28, 1990Date of Patent: February 23, 1993Assignee: Neumann Industries, Inc.Inventors: John W. Neumann, J. Scott Neumann
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Patent number: 5186123Abstract: Durable knockdown flat sheet metal component birdhouse having slidable flanged edge assembly connections and flat wood panel interior liners. The assembly connections include U-shaped folded 180.degree. flanges extending in the plane of sheet metal panels slidably engaging mating 90.degree. flanges on adjacent panels to provide an integrated self-supporting box construction free of required supplemental fastening means. A plurality of such birdhouses mounted on a horizontal rod serve as equivalent to a multiple compartment "Martin" type birdhouse.Type: GrantFiled: February 10, 1992Date of Patent: February 16, 1993Inventor: Ronald G. Cuddy
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Patent number: 5165148Abstract: Toggle clamps with bifurcated handle actuated to aligned toggle element clamping position with manually releasible latch lock lever pivotally mounted between handle sides resiliently engaging base mounted catch upon handle reaching toggle alignment.Type: GrantFiled: December 11, 1991Date of Patent: November 24, 1992Assignee: Delaware Capital Formation, Inc.Inventors: Walter Fleischer, Henry Dykstra
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Patent number: 5161293Abstract: Production hand tool equipped with pistol grip type handle for manipulating the tool at a comfortable angle including pivotal means for adjusting the angular relation of the handle in the central plane of the tool in order to optimize hand comfort in operation and relieve muscular fatigue incident to operating the tool over protracted periods at a constant angle. A male and female toroidal segment connection establishes a virtual transverse pivotal axis with handle rigidly secured by an internal clamp having cylindrical segment area bearing contact on an interior hollow connection end of the handle.Type: GrantFiled: April 15, 1991Date of Patent: November 10, 1992Assignee: Ebbert Engineering, Inc.Inventor: Robert Ebbert
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Patent number: 5161424Abstract: An anti-backlash rack and pinion drive system comprising a pair of spur gears on parallel shafts engaging a rack with countertorque preload imposed by a positive timing belt engaging a pair of pulleys respectively coupled to the shafts. Slack on one side and a resilient transverse load applied to the other side of the belt provides counterspur gear tooth pressure on the rack equal to the maximum drive load effected through reversible rotation of one of the shafts.Type: GrantFiled: September 12, 1991Date of Patent: November 10, 1992Assignee: Cargill Detroit CorporationInventors: Mark Saberton, Michael L. Trowbridge
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Patent number: 5154273Abstract: A floor mounted inside chain loop carousel conveyor with chain pivots at the inside corners of successive rectangular platforms and with use of spanning "butterfly" bifold guards comprising a pair of identical triangular sides with upper edges pivotally connected to each other and lower edges pivotally connected respectively to adjacent sides at successive platforms. All three pivotal connection seams are equipped with piano-type hinges. The "butterfly" bifold guards, when extended in passing around curved sections of the conveyor provide a bridge higher than, rather than flush with the platform so as to provide a structurally rigid personnel guard.Type: GrantFiled: November 26, 1991Date of Patent: October 13, 1992Assignee: Socio Tec Integrators, Inc.Inventor: Robert A. Macomber
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Patent number: 5149070Abstract: A fluid pressure actuated edge clamp employing inclined guide tracks for a clamp jaw advanced and retracted by linkage which substantially eliminates side loading of the piston from reaction loads during clamp engagement. The linkage is reaches an aligned end position with the piston rod in clamping position and to accelerate advance and retraction of the clamp jaw in moving to and from clamping engagement.Type: GrantFiled: May 10, 1991Date of Patent: September 22, 1992Assignee: Delaware Capital Formation, Inc.Inventor: Henry Dykstra
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Patent number: 5138880Abstract: Digital level sensing probe system including digital probe constructed of two (2) concentric cylinders, forming a set of discrete, cylindrical capacitors that use the substance whose level is to be measured as a dielectric material. The set of capacitors is arranged along the axis of measurement where each capacitor represents a discrete level increment. Each capacitor is assigned a unique time slot in a switching sequence. The first level capacitor is used as a reference to which all other capacitors are sequentially compared. In the switching sequence, an AC signal is applied across each capacitor and compared with the inverted signal which is applied across the first level capacitor. A logic "1" results when the substance is present and a logic "0" when the substance is absent. The logic is decoded and converted to display the appropriate quantity of substance measured.Type: GrantFiled: May 29, 1991Date of Patent: August 18, 1992Assignee: Lee/Maatuk Engineering, Inc.Inventors: Calvin S. Lee, Eliahou Tousson
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Patent number: 5127765Abstract: System including method and apparatus for treating contaminated underwater sediment by lowering a hollow casing to an underbed, lowering a power driven Kelly bar with injecting and mixing blade fed with treatment material such as solidifying cement and flyash, providing a top cover for confining the sediment to be treated within the casing, injecting and mixing the treatment material through the Kelly bar, and sequentially moving the casing with Kelly bar to adjacent treatment locations.Type: GrantFiled: July 25, 1991Date of Patent: July 7, 1992Assignee: Millgard Environmental CorporationInventor: V. Dennis Millgard
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Patent number: 5115110Abstract: Hydraulically actuated quick release base mounted clamp particularly capable of use for clamping interchangeable production heat treating induction coils to produce intimate pressurized electrical conductive contact between elongated base mounted and induction coil bus bars. A central short stroke hydraulic cylinder produces only slight pivotal clamping engagement of dual laterally spaced clamp arms, the pivots of which can be linearly laterally retracted to clearance position upon release of hydraulic pressure. A cross shaft having a flatted engagement by the rigidly mounted cylinder piston head and a pivot cross shaft having flatted ends adapted to slide in slotted keyways upon release of actuating pressure provide for lateral movement of the clamp arm assembly to a clearance position while the actuating cylinder remains in its fixed position.Type: GrantFiled: June 18, 1990Date of Patent: May 19, 1992Assignee: Delaware Capital Formation, Inc.Inventors: Jerome E. Tucker, Henry Dykstra
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Patent number: 5078254Abstract: A closed horizontal path nonsynchronous manufacturing system employing dual conveyor chains supporting and transporting fixurized workpiece pallets in single file to a plurality of sequential work stations located at straight segments of the path connected by polygonal obtuse angle corners. Accurate registration and clamping means engaging a straight pallet side with single register pin actuation utilizes straight conveyor segments for inside and/or outside operating stations with minimum lost space for polygonal obtuse angle corner transition.Type: GrantFiled: February 22, 1988Date of Patent: January 7, 1992Assignee: Cargill Detroit CorporationInventors: Ray E. Colonius, Edward J. Early
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Patent number: 5064177Abstract: A power clamp having linear bearing tracks for actuating toggle linkage characterized by a combination of fixed and moving cover elements completely enclosing the bearing tracks to prevent intrusion of foreign materials.Type: GrantFiled: December 3, 1990Date of Patent: November 12, 1991Assignee: Delaware Capital FormationInventors: Larry M. Witt, Bruce K. Sherman