With Counterbalance Patents (Class 49/445)
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Patent number: 12147707Abstract: A system and method for performing a store to load process includes receiving a first store instruction. The first store instruction includes a first target address, a first mask, and a first data structure. Further, the first target address, the first mask, and the first data structure are stored within a first store buffer location of a store buffer. A first entry identification associated with the first store buffer location is stored within an age buffer. The first data structure is output based on an order of entry identifications within the age buffer.Type: GrantFiled: September 23, 2022Date of Patent: November 19, 2024Assignee: Synopsys, Inc.Inventor: Karthik Thucanakkenpalayam Sundararajan
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Patent number: 10533359Abstract: A snap lock balance shoe of a balance system may be incorporated in pivotable double hung windows. In one embodiment, the snap lock balance shoe includes a pair of retractable tabs that partially extend through openings within an inverted window balance channel. The shoe includes a locking member that extends toward a window jamb when a cam of the shoe is rotated. This extension locks the balance system in place in the window jamb. During a method of assembly of the balance system, the snap lock balance shoe may be engaged with the channel and then pivoted to secure the snap lock balance shoe to the channel.Type: GrantFiled: August 17, 2017Date of Patent: January 14, 2020Assignee: AMESBURY GROUP, INC.Inventors: Stuart J. Uken, Gary R. Newman, Lawrence J. VerSteeg
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Patent number: 10435934Abstract: A carrier for a window sash has a balance connecting portion configured to be connected to a window balance. A vertical rail system is configured to slidingly engage a bracket of the window sash.Type: GrantFiled: January 8, 2018Date of Patent: October 8, 2019Assignee: AMESBURY GROUP, INC.Inventor: Wilbur James Kellum, III
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Patent number: 10415287Abstract: A counterbalance system for a window sash that engages a guide track in a vinyl tilt-in window. At least one ribbon spring coil is used to create the counterbalance force. The ribbon spring coils are held in a brake shoe chassis that travels within the guide track of the window. A first protective barrier is attached to the brake shoe chassis. The first protective barrier travels externally of the guide track and shields the slot opening adjacent the spring placement area. A second protective barrier is attached to the brake shoe chassis inside the guide track. The second protective barrier shields the spring placements areas from contamination within the guide track. A brake mechanism is also attached to the brake shoe chassis. The brake mechanism uses a cam to spread arms against the side walls of the guide track when the window sash is tilted. This provides contact against three inside walls of the guide track, therein creating a lock.Type: GrantFiled: September 24, 2016Date of Patent: September 17, 2019Assignee: John Evans' Sons, Inc.Inventor: John R. Kunz
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Patent number: 10095817Abstract: A method, system, apparatus, article of manufacture, and computer readable storage medium provide the ability to automatically simulate a wind load. An analytical model is converted into a solid model. A wind flow on the solid model is simulated to determine pressures on structural elements of the solid model. The simulating is repeated until the pressures converge. The pressures are converted to loads on the structural elements. Load cases are generated with equivalent loads on the structural elements.Type: GrantFiled: November 13, 2014Date of Patent: October 9, 2018Assignee: AUTODESK, INC.Inventors: Grzegorz Skiba, Leslaw Janus, Krzysztof Buchacz, Marcin Danielak, Brian M. Frank
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Patent number: 9181748Abstract: An air and/or debris dam for moving coil balance assembly for a hung window is disclosed. The air and/or debris dam is located between the carrier and a mounting location of a moving coil window balance assembly. The air and/or debris dam can travel within the jamb channel of a window frame assembly to inhibit airflow and/or the deposition of dust and/or debris in the jamb channel.Type: GrantFiled: February 27, 2015Date of Patent: November 10, 2015Assignee: Caldwell Manufacturing Company North America, LLCInventors: Jay Sofianek, John Kessler
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Patent number: 9133656Abstract: A window balance may include a shoe body with an elongate portion and an enlarged portion. The elongate portion may include at least one carrier section for supporting a coil spring and an enlarged portion may include a locking element and a cam in communication with the locking element. The width of the enlarged portion may be greater than the width of the elongate portion. The spring may rest in the carrier section and may be secured to a window jamb with a fastener or a mounting element.Type: GrantFiled: April 6, 2011Date of Patent: September 15, 2015Assignee: AMESBURY GROUP, INC.Inventors: Travis Steen, Chad Swier, Dan Raap, Gary R. Newman, Bruce Hagemeyer
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Patent number: 9003705Abstract: An automatic pet door for large pets is installed in a hinged door and is actuated by a magnet worn by a pet. Unintended openings of the automatic pet door caused by the Earth's ambient magnetic field when the hinged door is moved are prevented by a system that includes a microelectromechanical systems gyro. A counterweight system allows the use of a relatively small and inexpensive electric motor to actuate the automatic pet door.Type: GrantFiled: March 26, 2014Date of Patent: April 14, 2015Inventor: Henry E. Solowiej
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Patent number: 9003710Abstract: A window balance assembly for installation in a window assembly can include a balance portion that is connected to a carrier that may have a first and second side. The balance portion may be arranged to be drawn out of the carrier on the first or second sides of the carrier. The balance portion may be a spring member or element. As the spring element is drawn out of the carrier, contact made between the spring element and the carrier may generate a friction that results in undesired chatter of the spring element and/or audible noise from the carrier. This friction may be reduced by controlling the contact made between the spring element and the carrier. Further, a reduction of friction between the spring element and the carrier may result in a reduction in spring chatter and a reduction in audible noise from the carrier.Type: GrantFiled: July 10, 2013Date of Patent: April 14, 2015Assignee: Caldwell Manufacturing Company North America, LLCInventors: Wilbur James Kellum, III, Jay Sofianek
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Patent number: 8966822Abstract: An air and/or debris dam for moving coil balance assembly for a hung window is disclosed. The air and/or debris dam is located between the carrier and a mounting location of a moving coil window balance assembly. The air and/or debris dam can travel within the jamb channel of a window frame assembly to inhibit airflow and/or the deposition of dust and/or debris in the jamb channel.Type: GrantFiled: August 9, 2013Date of Patent: March 3, 2015Assignee: Caldwell Manufacturing Company North America, LLCInventors: Jay Sofianek, Wilbur James Kellum, III, John Kessler
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Publication number: 20150013226Abstract: An access system for a temperature-controlled storage device includes a perimeter frame and least one display case door mounted within the perimeter frame. The perimeter frame and the at least one display case door are configured to move substantially vertically along a surface of the temperature-controlled storage device between a raised position and a lowered position. The at least one display case door is further configured to move substantially horizontally between an open position and a closed position when the perimeter frame is in the lowered position. The access system further includes a torsion spring and motor assembly coupled to the perimeter frame and configured to move the perimeter frame and the at least one display case door between the raised position and the lowered position.Type: ApplicationFiled: July 10, 2013Publication date: January 15, 2015Inventors: Paul Artwohl, Jack R. Christensen, Virginia Ramirez
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Publication number: 20140259944Abstract: A fenestration unit, such as a window, having an upper sash and a lower sash can be configured to permit separate and independent movement of the upper sash and the lower sash when desired, while restraining the upper sash from movement caused by movement of the lower sash. A fenestration unit having a single movable sash can also be configured to provide securement of the single movable sash against undesired vertical movement.Type: ApplicationFiled: March 17, 2014Publication date: September 18, 2014Inventors: Todd A. Bernhagen, Scot C. Miller
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Publication number: 20140230331Abstract: A mechanism is provided for balancing and positioning a sash of a self-balancing double-hung window assembly. The mechanism may include a fixed length cable, a pulley, first and second brackets and an adjustment member. The fixed length cable may include first and second ends. The pulley may support the cable. The first bracket may include one or more attachment points relative to the first end of the cable and may include an upper end and a lower end. The second bracket may be movable relative to the first bracket and may be configured to support the sash. The adjustment member may engage and extend through the lower end of the first bracket and may be movable relative to the first bracket to cause corresponding movement of the second bracket relative to the first end of the cable.Type: ApplicationFiled: October 4, 2012Publication date: August 21, 2014Applicant: CALDWELL MANUFACTURING COMPANY NORTH AMERICA, LLCInventor: Wilbur James Kellum, III
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Publication number: 20140208655Abstract: A sash cam for a window sash having a base adapted to be secured to a window sash, a cam positionable in a stored position and an engaged position, and a pivot for joining the cam and the base. The pivot is adapted to hold the cam in at least one of the stored position and the engaged position. When in the stored position, a depth of the cam is at least one of less than and equal to a depth of the base.Type: ApplicationFiled: January 24, 2014Publication date: July 31, 2014Inventors: Preston Stoakes, Chad Swier, Travis Steen, Dan Raap, Gary Newman
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Publication number: 20140150346Abstract: A hybrid sash counterbalance and assist operated window includes a frame having upper and lower sashes slideable within the frame. A sash coupling element extends between the upper and lower sashes. A counterbalance and assist mechanism is coupled with the sash coupling element. The hybrid sash counterbalance and assist mechanism is operable in a sash counterbalance mode and an independent sash movement mode. In the sash counterbalance mode, movement of the upper or lower sash causes converse movement of the lower or upper sash through the sash coupling element, and the movement of the upper or lower sash is assisted by the converse movement. In a first independent sash movement mode, one of the upper and lower sashes is held static while the other of the lower or upper sashes is moved, and the moved sash is assisted by the counterbalance and assist mechanism.Type: ApplicationFiled: March 15, 2013Publication date: June 5, 2014Inventor: Nathan H. DeBoer
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Patent number: 8464466Abstract: A counterbalance system for a window assembly having a window sash that moves in a guide track. The counterbalance system has a first stop mounted in the guide track. A spring housing is placed in the guide track above the first stop. The spring housing holds the counterbalance spring that provides the counterbalance force. The spring housing is free to move along the guide track above the first stop. The spring housing is incapable of passing the first stop and traveling below the first stop. A brake shoe is positioned in the guide track. The counterbalance spring has a free end that extends from the spring housing to the brake shoe. The brake shoe is capable of moving in the guide track past the first stop. In this manner, the brake shoe can be raised above the first stop.Type: GrantFiled: December 27, 2010Date of Patent: June 18, 2013Inventor: John R. Kunz
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Patent number: 8424248Abstract: A snap lock balance shoe and system to be incorporated in pivotable double hung windows. In one embodiment, the snap lock balance shoe includes a pair of retractable tabs that partially extend through openings within an inverted window balance. Embodiments of methods for installing the system include inserting a frame of the balance shoe within a jamb track of the window jamb, rotating the frame 90 degrees about a first axis, and rotating the frame 90 degrees about a second axis such that the frame is substantially fully disposed within the jamb track.Type: GrantFiled: January 20, 2010Date of Patent: April 23, 2013Assignee: Amesbury Group, Inc.Inventors: Stuart J. Uken, Gary R. Newman, Lawrence J. Versteeg
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Patent number: 8327583Abstract: A pulley assembly for an overhead counter weight door features a base plate and a support arrangement carried on and spaced from the base plate so that the base and support arrangements face toward one another. A shaft is carried on the base plate and the support arrangement to extend therebetween with a pulley supported on the shaft between the base plate and the support arrangement for rotation about an axis defined by the shaft. A plurality of wall sections extends between the base plate and the support arrangement to establish connection therebetween radially outward from the shaft beyond an outer periphery of the pulley on more than two sides thereof.Type: GrantFiled: May 5, 2008Date of Patent: December 11, 2012Assignee: Hanover Door Systems (1996) Inc.Inventors: Greg Reimer, Dennis Braun, Richard Klassen, Walter Toews
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Publication number: 20120167474Abstract: A weight compensation system is provided for a motor driven door having a door leaf that is driven by a mechanism inside guide rails on a side of the door leaf to move the door between an opened position and a closed position. The weight compensation system includes a weight-compensation device comprising a cable unit and a spring unit arranged at least on one side of the door leaf, wherein the cable unit comprises a single cable. A cable-tension compensation device at which the single cable is deflected creates two cable strands that are secured against breakage within the cable-tension compensation device. The cable-tension compensation device is positioned locally fixed or secured to the door leaf so that two cable strands move at a distance to each other, and the exposed ends of the cable are guided together and attached to the door leaf or are positioned locally fixed, respectively.Type: ApplicationFiled: September 3, 2010Publication date: July 5, 2012Applicant: SOMMER ANTRIEBS-UND FUNKTECHNIK GMBHInventor: Gerd Schaaf
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Patent number: 8136301Abstract: Disclosed is a pivotable, multi-coil spring counterbalance, and method for using the same, which allows the user to readily attach a desired number of coil springs having chosen forces to a counterbalance connector attached to a vertically movable member, thereby providing an offset for at least a portion of the weight thereof.Type: GrantFiled: March 24, 2009Date of Patent: March 20, 2012Assignee: Inovadeas, LLLPInventor: Dave B. Lundahl
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Publication number: 20120043865Abstract: A headwall for a patient's room includes a panel having a vertically-extending front surface, an opening defined in the front surface of the headwall, and a door sized to be received in the opening. The door is vertically movable from a first position where an outer face of the door is flush with the front surface of the panel to a second position where the outer face extends parallel to the front surface and the door is positioned behind the front surface.Type: ApplicationFiled: August 23, 2010Publication date: February 23, 2012Inventors: David C. Newkirk, Charles L. Thomeczek, JR., Joseph F. Meyer, Charles R. Beiser, Colt M. Weberding, Dale F. Meyer
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Patent number: 8074402Abstract: Window sash counterbalances using curl springs and holders can increase resistance to sash drop without causing sash hop by using a high coefficient of friction bearing surfaces against which curled up coils of curl springs slide when uncurling or re-curling. The higher friction bearing material produces more frictional resistance to spring uncurling than to spring re-curling and thus resists drop without causing hop. This allows a wider range of sash weights to be counterbalanced by a fewer number of counterbalance forces, saves manufacturing cost.Type: GrantFiled: April 21, 2008Date of Patent: December 13, 2011Assignee: Caldwell Manufacturing Company North America LLCInventor: Jeffrey Tuller
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Device and method for improving the installation of pre-tensioned spiral balances in window balances
Patent number: 8060984Abstract: The present device is an extender for pretension spiral rod window balances. The spiral rod extender is attached to the end of the spiral rod by the window or balance manufacturer. At the window manufacturer, the sash is installed into the window frame and the balance is inserted into one of the jamb channels. A hook tool, having a hooking element at one end, is used to grab onto a hole in the end of the spiral rod to pull it a sufficient amount out of the containment tube. The hook tool manipulates the spiral rod so that a sash hook mounted on the balance engages a ledge at the end of the sash, thereby securing the balance to the sash. The spiral rod extender is then removed from the spiral rod and may be reused by the balance manufacturer or discarded as desired.Type: GrantFiled: February 25, 2009Date of Patent: November 22, 2011Assignee: Caldwell Manufacturing Company North America LLCInventors: Curtis Levermore, Douglas Zinter -
Patent number: 8028377Abstract: In a block and tackle window balance, the balance shoe holds and upwardly biases the terminal connector in a mounted position. A biasing element of the shoe maintains the terminal connector in a pocket of the shoe during operation of the balance. The terminal connector is prevented from laterally exiting the pocket in the mounted position by a widened portion on the terminal connector and a locating surface extending from the shoe toward the pocket. Manually pressing down on the biasing element or the terminal connector itself to lower the terminal connector in the pocket until the widened portion clears the locating surface allows lateral removal of the terminal connector from the pocket. During operation of the balance, however, the terminal connector does not experience a sufficient downward force to overcome the upward bias such that the widened portion never clears the locating surface.Type: GrantFiled: January 30, 2008Date of Patent: October 4, 2011Assignee: Caldwell Manufacturing Company North America LLCInventor: Mark R. Baker
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Patent number: 7980028Abstract: A counterbalance system for a side load window assembly having a window sash and side frame jambs. A spring carriage is provided. The spring carriage has a first section that fits into a gap space between the window frame and the window sash. The spring carriage also includes a second section that passes under the window sash, therein supporting the window sash. At least one coil spring is provided. Each coil spring has a wound body that is held within the spring carriage. Each coil spring also has a first end that extends out of a housing and is anchored to one of the side frame jambs. The coil springs bias the spring housing upwardly. Since the window sash rests upon the housing, the window sash is counterbalanced.Type: GrantFiled: July 16, 2007Date of Patent: July 19, 2011Inventor: John R. Kunz
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Patent number: 7966770Abstract: A counterbalance assembly for counterbalancing a tilt-in window sash within a guide track of a window frame. A brake shoe housing is provided having a face section and a rear section defined between a top edge, a bottom edge, and two side edges. At least one of the two side edges is a curved surface having a convex curvature. A curl spring is provided having a free end. The free end of the curl spring engages the brake shoe housing, therein applying a turning torque to the brake shoe housing that cocks the brake shoe housing and moves the curved surface into tangential contact with the guide track. A cam actuator is interposed between the face section and the rear section that spreads these sections into contact with the guide track when the tilt-in window sash is tilted forward.Type: GrantFiled: March 7, 2005Date of Patent: June 28, 2011Inventor: John R. Kunz
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Publication number: 20110138713Abstract: The present application relates to an attic door assembly. The attic door assembly includes a jamb having an interior surface. The jamb is installed adjacent to a pull-down attic door. The attic door assembly also includes a rabbet disposed along a perimeter of the interior surface of the jamb and a door hingedly coupled to the jamb. The door includes a frame, a panel coupled to a first side of the frame, and a foam board coupled to a second side of the frame opposite the panel. The foam board, the panel, and the frame in combination define an interior space. An insulating material is disposed within the interior space. Finally, a flexible sealant is applied to the interior surface. The flexible sealant is operable to seal an interface of the rabbet, the jamb, and the door.Type: ApplicationFiled: December 2, 2010Publication date: June 16, 2011Inventor: Jeffery Lynn Reed
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Publication number: 20110113695Abstract: A sash window restrictor (20) has a housing (22) which is to be let into a vertical frame member (10) of one sash (normally the upper, outer sash) of a window, at a position, say, 10 cm above the top rail of the lower sash when the windows are closed. A tab (24) is mounted in the housing and can be retracted into the housing or extended from the housing. A mechanism acts between the tab and the housing and allows the tab to be pressed into the housing and held in the housing for a period of time before the tab is released to allow the tab to extend. With the tab extended, the lower sash (12) can be lifted until it reaches the tab (24) but no further, so that a 10 cm gap will be opened at the bottom of the window.Type: ApplicationFiled: June 19, 2009Publication date: May 19, 2011Applicant: Mighton Products LimitedInventor: Michael Derham
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Publication number: 20110030278Abstract: The invention relates to a lifting door assembly comprising a lifting door, in particular a fast-moving industrial door, having a door leaf which in the closed condition of the lifting door covers a door aperture, and a door lintel sealing device disposed in the area of a door lintel and mounted so as to produce a sealing effect between the door leaf and the door lintel in a sealing position when the lifting door is in the closed condition. The lifting door assembly is characterized in that the door leaf is guided laterally such that in the open position, it is wound free of contact in the area of a door lintel, and in that in the sealing position, the door lintel sealing device rests on a horizontal lateral edge surface of the door leaf adjacent the door lintel. The invention further relates to such a door lintel sealing device. The invention allows to improve a lifting door assembly such that particularly reliable sealing may be obtained with it in the area of the door lintel.Type: ApplicationFiled: February 6, 2009Publication date: February 10, 2011Inventors: Joze Breznikar, Norbert Höfner, Hans-Jörg Kremser
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Publication number: 20110005138Abstract: The present invention is directed to an industrial high-speed door assembly having a reduced door panel width and having guides for guiding the door which extend into a passageway but are resilient, tough, or resiliently collapsible, to either withstand impacts from vehicle collisions or moveable during opening of the door to avoid collisions while returning for guidance upon closing the door.Type: ApplicationFiled: July 30, 2007Publication date: January 13, 2011Applicant: RYTEC CORPORATIONInventors: Brian Norbert Drifka, Arno Klein, John Sonn, Donald P. Grasso, Daniel J. Gregoriou, Walenty Kalempa
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Patent number: 7798198Abstract: A weight compensation device for a lifting door, includes a spring element and a tensile element, which can be wound onto or unwound from a winding device in such a way that the spring element achieves its greatest pre-tension when the door leaf is in the closed position and is essentially tension-free when the door leaf is in the open position. The tensile element is narrower at the end facing the winding device than at the end facing the spring element and the winding device includes a guide device, which is used to wind the tensile element in such a way that the wound layers lie adjacent to one another without making contact. To achieve this, the guide faces around the perimeter of the guide device have a continuously increasing radius in the winding direction. This enables the provision of a weight compensation device that achieves the torques required for effective weight compensation by means of a simple construction.Type: GrantFiled: October 16, 2006Date of Patent: September 21, 2010Assignee: Efaflex Inzeniring D.O.O. LjubljanaInventors: Gabrijel Rejc, Matjaz Sentjurc, Joze Breznikar
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Patent number: 7735192Abstract: An extended travel balance including a channel having a first end and a second end, a bottom pulley connected at the second end of the channel, and a bottom guide connectable at a location between the first end and the bottom pulley, and preferably between the bottom pulley and fixed pulleys of the end carriage. The bottom guide and top guide are not part of the tensioned parts in the channel and can, therefore, be stored separately from the channel with its tensioned parts—e.g., springs, pulleys, and pulley cord. Multiple bottom guide and top guide configurations can be mated to the channel with its tensioned parts without interfering with the operation of either. Fixed pulleys and bottom pulley of the end carriage are advantageously connected by an intermediate tensioned connector with all said parts held in tension between and by the connection of the bottom pulley to the tensioned pulley cord and the connection of the bottom pulley to the second end of the channel.Type: GrantFiled: June 28, 2006Date of Patent: June 15, 2010Assignee: Caldwell Manufacturing CompanyInventor: Richard S deNormand
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Patent number: 7676989Abstract: A modular spring support mounting for a sash window spring counterbalance arrangement includes at least a first spring support mounting element and a second spring support mounting element each for supporting a respective coil spring. The first spring support mounting element includes a pair of wedged shaped cross section projections. The second spring support mounting element includes an interengagement fitting which engages the pair of wedged shaped cross section projections to in use securely interconnect the first and second spring support mounting elements together. Also a method of installing such a modular spring mounting includes the step of laterally slidingly engaging the spring mounting elements to securely interlock the elements together.Type: GrantFiled: December 9, 2003Date of Patent: March 16, 2010Assignee: Clearview Industries LimitedInventors: Harold Keith Braid, Simon Christopher Braid, John Michael Payne
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Patent number: 7673372Abstract: A sash balance brake shoe assembly (2) is disclosed for counterbalancing a sash window (3) slidably supported within a master frame (5). The assembly generally includes a balance assembly preferably in the form of a block and tackle balance assembly (7) and a brake shoe (28). The balance assembly has a balance channel (6). The brake shoe (28) has an extension member (36) that is received by the balance channel (6). A fastener (42) directly connects the brake shoe (28) to the balance channel (6).Type: GrantFiled: October 26, 2006Date of Patent: March 9, 2010Assignee: Newell Operating CompanyInventors: Jason Annes, Ralph Soles
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Publication number: 20090260295Abstract: Window sash counterbalances using curl springs and holders can increase resistance to sash drop without causing sash hop by using a high coefficient of friction bearing surfaces against which curled up coils of curl springs slide when uncurling or re-curling. The higher friction bearing material produces more frictional resistance to spring uncurling than to spring re-curling and thus resists drop without causing hop. This allows a wider range of sash weights to be counterbalanced by a fewer number of counterbalance forces, saves manufacturing cost.Type: ApplicationFiled: April 21, 2008Publication date: October 22, 2009Applicant: CALDWELL MANUFACTURING COMPANYInventor: Jeffrey Tuller
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Patent number: 7591103Abstract: A window sash assembly includes a window sash having an upper rail and at least one side rail that form a corner of the window sash. A slot at the window sash corner opens laterally outwardly from the corner and is defined in part by opposed linear tracks on the upper rail. A tilt latch is disposed in the slot, and includes a housing having opposed sidewalls and outwardly extending ledges overlying the sidewalls slidably received over the tracks on the upper rail. A flexible resilient spring element on each sidewall is spaced from the associated ledge such that the tracks on the rails are slidably received between the ledges and the spring elements.Type: GrantFiled: December 15, 2005Date of Patent: September 22, 2009Assignee: Milgrad Manufacturing, Inc.Inventors: John Tremble, John Falcon, Kai Zhang
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Publication number: 20090223134Abstract: Disclosed is a pivotable, multi-coil spring counterbalance, and method for using the same, which allows the user to readily attach a desired number of coil springs having chosen forces to a counterbalance connector attached to a vertically movable member, thereby providing an offset for at least a portion of the weight thereof.Type: ApplicationFiled: March 24, 2009Publication date: September 10, 2009Applicant: Inovadeas, LLLPInventor: Dave B. Lundahl
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Patent number: 7568260Abstract: Disclosed is a discretionarily adjustable friction force block and tackle balance system comprising a housing and an adjustable break, wherein means are provided for adjusting the friction force between an inner surface of the housing and the adjustable break. An adjustable balance system comprising a housing, a floating anchor assembly, a fixed anchor assembly, a cord, and an elastic suspension is also disclosed. In an embodiment, the housing is a 3-side or 4-side tube or channel. There is at least one elongated hole or slit on at least one surface of said housing. An adjustable break is mounted inside the floating anchor subassembly. Moving the window sash also causes the floating anchor subassembly to move. When the floating anchor subassembly is moved to a position just under elongated hole on the said housing, the adjust screw installed in the adjustable break is exposed.Type: GrantFiled: June 22, 2005Date of Patent: August 4, 2009Inventor: Mingze Wu
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Publication number: 20090188075Abstract: In a block and tackle window balance, the balance shoe holds and upwardly biases the terminal connector in a mounted position. A biasing element of the shoe maintains the terminal connector in a pocket of the shoe during operation of the balance. The terminal connector is prevented from laterally exiting the pocket in the mounted position by a widened portion on the terminal connector and a locating surface extending from the shoe toward the pocket. Manually pressing down on the biasing element or the terminal connector itself to lower the terminal connector in the pocket until the widened portion clears the locating surface allows lateral removal of the terminal connector from the pocket. During operation of the balance, however, the terminal connector does not experience a sufficient downward force to overcome the upward bias such that the widened portion never clears the locating surface.Type: ApplicationFiled: January 30, 2008Publication date: July 30, 2009Applicant: CALDWELL MANUFACTURING COMPANYInventor: Mark R. Baker
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Patent number: 7506475Abstract: Disclosed is a multi-coil spring assembly that is mounted in the weight pocket of a vertically operating window. The multi-coil spring assembly allows the user to attach a desired number of multi-coil springs having chosen constant forces to the counterbalance connector to provide the desired amount of counterbalance force to the sash of a vertically operating window. The multi-coil spring assembly may be rotated into an interior portion of the window to permit straightforward attachment to the counterbalance connector and then retracted into the weight pocket in a recessed position for normal window operation.Type: GrantFiled: July 6, 2006Date of Patent: March 24, 2009Assignee: Inovadeas, LLLPInventor: Dave B. Lundahl
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Publication number: 20080295411Abstract: The invention relates to a weight compensation device (6) for a lifting door (1), comprising a spring element (61) and a tensile element (62), which can be wound onto or unwound from a winding device in such a way that the spring element (61) achieves its greatest pre-tension when the door leaf (2) is in the closed position and is essentially tension-free when the door leaf (2) is in the open position. According to the invention, the tensile element (62) is narrower at the end facing the winding device than at the end facing the spring element (61) and the winding device comprises a guide device (63), which is used to wind the tensile element (62) in such a way that the wound layers lie adjacent to one another without making contact. To achieve this, the guide faces around the perimeter of the guide device (63) have a continuously increasing radius in the winding direction.Type: ApplicationFiled: October 16, 2006Publication date: December 4, 2008Inventors: Gabrijel Rejc, Matjaz Sentjurc, Joze Breznikar
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Patent number: 7367162Abstract: A system for supporting a window sash that allows for the removal of the sash from between opposed window jambs. The system supports the window sash through counterbalance shoes supporting sash support arms pivotally attached to the sash. The shoes include hooks which, in first positions, engage lances in the window jambs to hold the shoes in place as the sash is removed from or installed between the window lambs. The hooks, in second positions, engage pins extending from the support arms to retain the support arms on the shoes.Type: GrantFiled: December 14, 2004Date of Patent: May 6, 2008Assignee: Caldwell Manufacturing CompanyInventor: Robert Michael Lucci
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Publication number: 20080034537Abstract: A curl spring mount has a separate cover that can snap fit into the mount to cover and protect the curl springs. A portion of the cover disposed over the vertical space occupied by the curl springs is arranged outside a jamb channel so that the curl springs can occupy the full width of the channel. A shield portion of the cover extends transversely of the jamb channel above the curl springs to protect them from dirt.Type: ApplicationFiled: August 6, 2007Publication date: February 14, 2008Applicant: CALDWELL MANUFACTURING COMPANYInventor: Jeffrey Tuller
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Publication number: 20080016781Abstract: A connecting assembly for a pushing outward window frame comprises a frame substrate fixed to an outer frame of a window; a window substrate fixed to an upper and a lower window frame; a first driven unit and a second driven unit connected between the frame substrate and the window substrate; a pivotal unit connected at a pivotal portion of the first driven unit and the window substrate and having a supporting block; a first protrusion and a second protrusion installed on the frame substrate; the first protrusion being formed with a second pivotal hole; one end of the first driven unit being positioned to the frame substrate; the second protrusion having a pivotal hole; one end of the second driven unit being pivotally connected to the frame substrate; and the first protrusion having a first pivotal hole aside the second pivotal hole for installing a limiting block.Type: ApplicationFiled: July 21, 2006Publication date: January 24, 2008Inventor: Kuan-Chin Chung
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Patent number: 7171784Abstract: A tilt-latch (10) for a sash window (12) disposed within opposed guide rails (16) on a master frame (14) is provided. The sash window (12) comprises a top rail (18), a base (22) and two stiles (24, 26) connected together at their extremities. The tilt-latch (10) is adapted for releaseably securing the sash window (12) to the master frame (14). The tilt-latch (10) includes a housing (30) adapted to be supported by the top rail (18), the housing (30) having an outward end opening (54). The tilt-latch (10) further includes a latch bolt (32) disposed within the housing (30) and having a nose (56) adapted for engaging a respective one of the guide rails (16). The latch bolt (32) has structure wherein the latch bolt (32) is capable of being operably positioned in the housing (30) in one of a first position for a right-hand tilt-latch (10) and second position for a left-hand tilt-latch (10).Type: GrantFiled: April 10, 2003Date of Patent: February 6, 2007Assignee: Newell Operating CompanyInventor: Mark B. Eenigenburg
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Patent number: 7143475Abstract: A sash balance brake shoe assembly (2) is disclosed for counterbalancing a sash window (3) slidably supported within a master frame (5). The assembly generally includes a balance assembly preferably in the form of a block and tackle balance assembly (7) and a brake shoe (28). The balance assembly has a balance channel (6). The brake shoe (28) has an extension member (36) that is received by the balance channel (6). A fastener (42) directly connects the brake shoe (28) to the balance channel (6).Type: GrantFiled: June 9, 2003Date of Patent: December 5, 2006Assignee: Newell Operating CompanyInventors: Jason Annes, Ralph Soles
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Patent number: 7111430Abstract: A window assembly has a frame with balance channels to opposite sides of the frame, balance devices in the channels and a sash which is both slideable and tiltable relative to the frame. Also provided is a sash tilt limit bar which has a first end attached to the sash and a second end which is held within and which slides vertically of one of the balance channels without interfering with the balance device in the channel. The bar limits the tilting of the sash to positions which do not allow the second end of the bar to travel sufficiently far as to allow the bar to move to a position perpendicular to the frame where the bar might otherwise block closing of the sash.Type: GrantFiled: November 1, 2004Date of Patent: September 26, 2006Inventor: Bruce F. Kinsey
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Patent number: 7093349Abstract: A balance assembly (15) is provided for a sash window assembly (10). The sash window assembly (10) has a sash window (12) slidable within a master frame (14). The balance assembly (15) has an elastomer balance member (30) having one end adapted to be connected to the master frame (14) and another end adapted to be connected to the sash window (12) to provide an upward biasing force to the sash window (12). A system (50) is provided for custom-manufacturing the balance member (30) and for custom-manufacturing a sash window assembly (10) incorporating the balance member (30).Type: GrantFiled: May 7, 2004Date of Patent: August 22, 2006Assignee: Newell Operating CompanyInventors: James G. Prete, Richard A. Gardner, Steven E. Schultz, Mark V. Murphy, Vincent F. Eslick, George E. Heid
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Patent number: 7093392Abstract: In sash windows where the sashes are supported on window units which run in channels in a window frame, and the window units are suspended from spring balances, the shoes have easily accessible mechanisms for adjusting the tension in the spring balances, without demounting the sashes and without separating the spring balances from the shoes. Adjustment is done by rotating an element in the shoes, at the bottom of the sash, with the sash pivoted out of the plane of the window. A tool is inserted in a socket to turn an element of the shoe exposed by the tilting of the sash, and the rotation of this element is transferred through 90° to vary the tension in the respective balance.Type: GrantFiled: November 30, 2004Date of Patent: August 22, 2006Assignee: Mighton Products, LimitedInventors: Mike Derham, Michael Hawker
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Patent number: 7076835Abstract: A sash window counterbalance spring mounting arrangement for fitment into a channel section within a window jamb, includes coiled ribbon springs, a spring support mounting including a single integral component for locating and supporting the springs, a support for the springs to support and locate the springs on the mounting, and formed by pairs of triangular cross section projections extend from the rear surface of the main body of the mounting such that when the springs recoil rapidly outer surfaces of adjacent springs contact each other, and including an end portion of the main body which is curved, wing projections extending from the front surface of the main body, and an inter engagement element on the longitudinal end of the mounting for cooperative engagement with cooperative inter engagement features on a sash shoe, and a locating arrangement for locating the mounting within the channel section.Type: GrantFiled: July 16, 2004Date of Patent: July 18, 2006Assignee: Amesbury Springs LimitedInventors: Braid Keith Harold, Braid Christopher Simon