Leg Elevators Patents (Class 16/32)
-
Patent number: 6886216Abstract: The caster leg assembly has a slidable collar mounted on a shank that is threaded onto a stud fixed within a hollow table leg. A resiliently deformable ring is positioned between a shoulder on the shank and an inwardly turned end of the leg. A locking nut is threaded onto a threaded portion of the collar to abut the inwardly turned end of the leg. After the shank has been adjusted along the length of the stud, the locking nut is threaded against the end of the leg to cause the collar to be drawn in a direction out of the leg thereby compressively deforming the ring to frictionally engage the collar and leg. This, in turn, locks the shank against rotation relative to the leg.Type: GrantFiled: September 30, 2003Date of Patent: May 3, 2005Assignee: Component Hardware Group, Inc.Inventors: Thomas Graham, Martin P. Burns
-
Patent number: 6871379Abstract: A method and apparatus for appliance installation and leveling using a leveling caster. The leveling caster includes a top shelf connected to wheels by a scissors type structure. The height of the scissors type structure can be adjusted using an adjustment bolt from the front of the appliance, without requiring access to the rear of the appliance. The leveling caster is adjustable over a wide range of heights, is strong enough to bear heavy appliances, and allows height adjustment while minimizing incidental horizontal motion.Type: GrantFiled: October 1, 2002Date of Patent: March 29, 2005Assignee: Wolf Appliance Company, LLCInventors: Christopher D. Ebeling, Brian D. Wylie
-
Patent number: 6839937Abstract: A leveling system for a containment unit is disclosed. This leveling system includes at least one and typically multiple leveling elements, each of which are adjustably attached to a surface of the containment unit. An adjustment mechanism is in communication with the leveling elements for displacing the leveling element or elements in a substantially vertical direction. The leveling system also includes a level measurement mechanism attached to a surface of the containment unit for indicating a containment unit horizontal planar position or indicating when the containment unit is “level.” A containment unit is also disclosed.Type: GrantFiled: September 25, 2002Date of Patent: January 11, 2005Assignee: Bush Industries, Inc.Inventor: Joseph E. Miller
-
Patent number: 6796001Abstract: A height adjustable support is provided for supporting food service equipment and the like at different elevations above a supporting floor. The support comprises a floor engaging member such as a leg or caster that has a threaded upright stud and a coupling having an internally threaded tubular wall threaded thereon. The support also has at least one set screw threaded channel that extends through the tubular wall and a set screw sized to be threaded through the coupling set screw threaded channel and into setting engagement with the stud. So constructed the coupling may be inserted into a bottom channel of the food service equipment with the floor engaging member stud threaded therein and set at a selected position thereby setting the equipment height.Type: GrantFiled: July 31, 2002Date of Patent: September 28, 2004Assignee: Kason Industries, Inc.Inventor: Burl Finkelstein
-
Patent number: 6760954Abstract: An improved laterally resilient and displaceable mechanical door bumper for moving an elongated retractable shaft. The body or mold of the door bumper includes a base portion in which mounting screws are firmly anchored into the wood of the adjacent door portion. The door bumper shaft includes a rubber end piece that is glued and snapped onto the end of the door bumper shaft for cushioning the impact of the door bumper against a wall. The side of the door bumper receives rollers which are attached to the side portion of the mold and can be compressed during impact. The rollers are adapted to contact a door frame, which forces the door bumper shaft to retract. The door bumper is devoid of separable parts or sharp edges that might injure persons, particularly children, who come in contact with the door bumper.Type: GrantFiled: January 9, 2001Date of Patent: July 13, 2004Inventor: George Rucker
-
Publication number: 20040055107Abstract: A leveling system for a containment unit is disclosed. This leveling system includes at least one and typically multiple leveling elements, each of which are adjustably attached to a surface of the containment unit. An adjustment mechanism is in communication with the leveling elements for displacing the leveling element or elements in a substantially vertical direction. The leveling system also includes a level measurement mechanism attached to a surface of the containment unit for indicating a containment unit horizontal planar position or indicating when the containment unit is “level.” A containment unit is also disclosed.Type: ApplicationFiled: September 25, 2002Publication date: March 25, 2004Applicant: Bush Industries, Inc.Inventor: Joseph E. Miller
-
Patent number: 6637071Abstract: A one-piece caster and leveler assembly to aid in the transportation and installation of equipment that combines a leveler with a rotable foot and a wheel chassis. During movement of the equipment, the leveler may be placed in a retracted position where the rotable foot contacts and pitches away from the wheels, and rotates as the direction of movement changes, providing improved clearance, load capacity and tolerance for striking obstacles.Type: GrantFiled: February 25, 2002Date of Patent: October 28, 2003Inventor: Mark C. Sorensen
-
Patent number: 6594856Abstract: A fixed pivotal retractable roller mechanism 20 and method for statically supporting an item 46 upon a support surface 44 in an inoperative state and supporting the item 46 to roll along the support surface 44 in an operative state. The mechanism 20 includes a housing 22, a swingarm 26 pivotally engaged with the housing 22, a spring 36, and a roller 32. The swingarm 26 has pivotal movement relative to the housing 22, the swingarm 26 has an inoperative position state where the roller 32 is retracted allowing the housing 22 to rest on and statically contact the support surface 44 and an operative position state where the swingarm 26 is extended such that the housing 22 is not in contact with the support surface 44 allowing the item 46 to roll along the support surface 44. Other embodiments with castor and without a spring are also disclosed.Type: GrantFiled: March 7, 2002Date of Patent: July 22, 2003Inventor: Hema Cherukuri
-
Patent number: 6591449Abstract: A castor assembly comprises stem (2) which is adapted at the upper end (4) thereof to be connected to the base of a structure to be supported, a foot (5), a castor body (3) swivellably mounted on the stem (2), a castor wheel (12) carried by the castor body, the rotational axis (13) of the castor wheel being offset from the axis of the stem to provide castoring, and a thrust bearing (19) positioned at the upper end of the castor body. The foot (5) is carried by the lower end of the stem (2), which is adjustable threadedly engageable with a threaded bore in the base whereby adjustment of the stem upper end (4) causes the foot to be raised or lowered relative to the base. The castor body (3) is capable of vertical movement relative to the stem (2), and the thrust bearing (20) bears the vertical load acting between the castor body and the base when the foot (5) is lifted clear of the floor and the castor wheel is supporting the structure.Type: GrantFiled: March 22, 2002Date of Patent: July 15, 2003Assignee: APW Ltd.Inventor: John R. Parkin
-
Patent number: 6550101Abstract: A caster system wherein a constant force is applied to the caster for load support purposes. A plurality of casters are interconnected by a fluid conduit system and each caster includes an expansible chamber motor for adjusting the vertical position of the caster. A fluid pressurizing unit communicates with the conduits and an adjustable force compression spring selectively varies the biasing force on the piston to adjust the equal force imposed upon each caster wheel.Type: GrantFiled: July 30, 2001Date of Patent: April 22, 2003Assignee: Ross Design & Engineering, Inc.Inventor: Jack R. Plate
-
Patent number: 6547264Abstract: A service cart leg extender assembly for attachment to a leg of a service cart that lengthens the leg of the service cart to a chosen length. The leg extender assembly includes an apparatus that augments the leg of the service cart through an easy to accomplish, reversible effect. The leg extender assembly disposes the components of the service cart at a higher elevation without diminishing stability of the service cart. The leg extender assembly is also embodied in a two portion apparatus with an upper portion including a notch that allows for securing the leg extender assembly to a leg of the service cart. The leg extender assembly is also embodied in a two portion apparatus with an upper portion including a hole that allows for securing the leg extender assembly to a leg of the service cart. One such leg extender is connected to each leg of the service cart to be elevated.Type: GrantFiled: November 19, 2001Date of Patent: April 15, 2003Assignee: Sunex International, Inc.Inventor: John H. Blackburn
-
Patent number: 6510648Abstract: A holder for isolating an article from a surface is comprised of a receiving member for retaining an article in a position removed from a surface. A crawling arthropod-deterring component is applied at least adjacent to lower periphery of the receiving member. A base situated below the receiving member supports and stabilizes the receiving member and distributes a load applied by the retained article.Type: GrantFiled: January 14, 2002Date of Patent: January 28, 2003Assignee: University of FloridaInventor: Ernest H. Roberts
-
Patent number: 6505433Abstract: A holder for isolating an article from a surface is comprised of a receiving member for retaining an article in a position removed from a surface. A crawling arthropod-deterring component is applied at least adjacent to lower periphery of the receiving member. A base situated below the receiving member supports and stabilizes the receiving member and distributes a load applied by the retained article.Type: GrantFiled: January 14, 2002Date of Patent: January 14, 2003Assignee: University of FloridaInventor: Ernest H. Roberts
-
Patent number: 6478270Abstract: The adjustable foot support has an internally threaded plastic housing and an externally threaded plastic tubular toe which is threaded into the housing. The two plastic components serve to transfer the weight of the table or cabinet to a support surface. A sleeve of a stainless steel and a collar of stainless steel or similar material are placed about the tubular toe and the plastic housing to present exposed surfaces.Type: GrantFiled: January 2, 2001Date of Patent: November 12, 2002Assignee: Component Hardware Group, Inc.Inventors: Bernard Parisi, David J. Burke
-
Patent number: 6473921Abstract: A bed resting on a floor includes a base frame, a plurality of casters coupled to the base frame and configured to engage the floor, a first brake coupled to the base frame, a foot pedal actuator movable between a first position and a second position, and a second brake coupled to the base frame. A linkage is configured to couple the second brake to the first brake so that when the foot pedal actuator is moved to the second position, the first and second brakes both move to a braking position and when the foot pedal actuator is moved to the first position the first and second brakes both move to a releasing position.Type: GrantFiled: January 30, 2001Date of Patent: November 5, 2002Assignee: Hill-Rom Services, Inc.Inventors: Jason C. Brooke, Michael J. Mutka, William S. Larisey, Jr., Reza Hakamiun, James F. Thomas, Kendall O. Shows
-
Patent number: 6408482Abstract: A bracket for a furniture unit including an upper mounting plate and a lower mounting plate, one of the upper and lower mounting plates providing a mount for a caster, the other of the upper and lower mounting plates providing a mount for a leveler. A bracket for a furniture unit including a substantially horizontal mounting plate provided with a substantially vertical aperture through which a leveler extends, the leveler having means for adjusting the leveler from a location above the bracket. A bracket for a furniture unit including an upper mounting plate and at least one sidewall depending therefrom which define a chamber open from below in which a caster is disposed.Type: GrantFiled: September 2, 1998Date of Patent: June 25, 2002Assignee: Kimball International, Inc.Inventors: Jay M. Henriott, Grover L. Miller, Chad M. Schnell
-
Patent number: 6385814Abstract: A tamper-resistant, adjustable table glide fits to the leg of a table in a permanent manner, while still permitting a height adjustment of the table, and hence permitting the table top to be levelled.Type: GrantFiled: November 16, 1999Date of Patent: May 14, 2002Inventor: Troy Richard Krumwiede
-
Patent number: 6079063Abstract: A caster of a collapsible crib includes a wheel and an outer cover fixed to the bottom of the crib. The wheel is rotatably housed within the outer cover. The outer cover has a supporting block, which is arranged such that the wheel is a distance from the ground when the crib is held upright on the ground, i.e. the supporting block touches the ground instead of the wheel.The crib is provided with two above described casters and two supporting base members so that it can be normally supported upright with four points; while the crib, when collapsed, can be leant on a user hand so that it is supported with only wheels of the casters to be capable of moving erasily.Type: GrantFiled: October 7, 1998Date of Patent: June 27, 2000Assignee: Pao-Hsien ChengInventor: Ying-Hsiung Cheng
-
Patent number: 6055704Abstract: A caster for rollably supporting a device with respect to a surface is disclosed. The caster includes a body and a rotatable member operably connected to the body. The member is rollably cooperable with the surface. The caster further includes a connector operably connected to the body for connecting the body to the device and a support operably connected to the connector.Type: GrantFiled: June 29, 1998Date of Patent: May 2, 2000Assignee: Xerox CorporationInventor: Bernard Leibman
-
Patent number: 5944291Abstract: The device of the invention comprises an adjuster 6 having a supporting end 6a in contact with a floor F to support a foldable table 1 in restrained condition, a caster 7 movable between a retracted position A where the supporting end 7a thereof at least contacts the floor F simultaneously with the supporting end 6a of the adjuster 6 and a projecting position B where the supporting end 7a projects toward the floor F beyond the supporting end 6a of the adjuster 6, and an urging mechanism 80 for urging the caster 7 toward the floor F with a force greater than the gravity acting on the foldable table 1 when the caster 7 is at or adjacent the projecting position and with a force smaller than the gravity acting on the foldable table 1 when the caster 7 is at or adjacent the retracted position.Type: GrantFiled: November 25, 1997Date of Patent: August 31, 1999Assignee: Kokuyo Co., Ltd.Inventors: Yoshimasa Kato, Hiroyuki Fukutani
-
Patent number: 5899422Abstract: An adjustable furniture leg extension device for use in raising the height of a piece of furniture, such as a chair, table or bed. The device includes a base having a bottom surface for resting on a floor, and an adjustable support member received within the base. The support member includes an upper load-bearing surface on which the furniture leg may rest. A generally rigid stabilizing arm extends laterally from the base and includes a stabilizing foot having a bottom surface which is generally co-planar with the bottom surface of the base. The adjustable support member may include a rim extending upwardly from an edge of the load-bearing surface, the rim serving to help retain the furniture leg on the load-bearing surface. One such leg extension device is placed beneath each leg of the furniture item to be raised, with the respective stabilizing arms turned inwardly beneath the furniture item.Type: GrantFiled: April 18, 1997Date of Patent: May 4, 1999Assignee: Roman WielandInventor: Alan Eke
-
Patent number: 5586803Abstract: A portable picnic table comprising a tabletop with a first pair of legs extending downwardly from a first end of the tabletop at an angle and a second pair of legs extending downwardly from a second end of the tabletop at the same angle as the first pair of legs. Structures on the outer side faces near bottom ends of the first pair of legs are for rolling the first pair of legs along the ground, when the second end of the tabletop is lifted up by the hands of a person and then pushed by the hands of the person. Elements on the bottom ends of the second pair of legs are for raising the second pair of legs off the ground when at rest, to compensate for the rolling structures on the first pair of legs, so as to maintain the tabletop in a true horizontal level position.Type: GrantFiled: October 14, 1994Date of Patent: December 24, 1996Inventor: Willard T. Overpeck
-
Patent number: 5575036Abstract: A wheel for facilitating rolling of a table over a ground surface. The inventive device includes a mounting assembly for securing to a lower end of a table leg. A wheel support assembly is pivotally mounted to the mounting assembly and rotatably supports a wheel beneath the table leg. The wheel support assembly can be pivoted laterally of the table leg such that the mounting assembly engages the ground to preclude unintentional movement of the table.Type: GrantFiled: July 26, 1995Date of Patent: November 19, 1996Inventor: Gregory D. May
-
Patent number: 5558027Abstract: The disclosure relates to a retractable caster assembly for use on large safes weighing in the 1000 pound range and above. The caster assembly utilizes a plurality of retractable casters which can be lowered to permit moving a safe from one place to another. Once the safe has been moved to its desired location, the caster assembly is raised while the safe is simultaneously lowered to the building floor. The caster assembly eliminates the need for specialized equipment to move the safe. Once the safe is lowered and the caster assembly is retracted, it is totally hidden from view, thus preventing the unauthorized movement of the safe since access to the caster assembly is only available when the safe door is open.Type: GrantFiled: February 23, 1995Date of Patent: September 24, 1996Inventors: B. Arvell Williams, J. Chad Williams
-
Patent number: 5533231Abstract: A concealable baggage caster comprises a caster housing fastened to the bottom edge of a baggage and provided therein with a space for housing a caster and a caster frame. The caster housing is provided respectively in the left and the right side walls thereof with an elongate slot, a pivoting hole and a locating hole. The caster is pivoted between the two lugs of the caster frame which is mounted on a shaft received in the pivoting holes of the caster housing and the pivoting holes of the caster frame. An action plate is fastened pivotally to the action holes of the caster frame. Two guiding pieces and two fevers are pivoted respectively on the two pivoting shafts which are slidably received in the elongate slots of the caster housing. Each of two levers has a central fulcrum hole dimensioned to receive therein a shaft which is also received in the locating holes of the caster housing.Type: GrantFiled: September 12, 1994Date of Patent: July 9, 1996Inventor: Yang-Fong Bai
-
Patent number: 5409297Abstract: An arm rest (1) for motor vehicle rear seats, comprising an elongated body (2) and a load bearing structure (4) having a tubular end portion (5) swingably supported on a shaft (7) adapted to be fixed in a stationary condition to the lateral sides (F) of a recess (R) of the seat (S) backrest (B). The shaft (7) incorporates rotational friction members (15, 16) cooperating with the tubular end portion (5) of the load bearing structure (4).Type: GrantFiled: April 21, 1993Date of Patent: April 25, 1995Assignee: Gestind-M.B. "Manifattura di Bruzolo" S.p.A.Inventor: Emilio De Filippo
-
Patent number: 5347682Abstract: A two position floor lock and caster assembly for a bed or the like includes a bracket adapted to be secured to the bed frame. A pair of links have ends pivoted to the bracket and free ends. A socket is pivotally joined to the free ends of the links so that rotation of the links raises and lowers the socket. A caster may be secured to the bracket or attached to the socket. A foot or floor lock may be secured to the bracket or the socket. A crank assembly is operatively connected to the links for raising and lowering the socket to move the floor lock or caster into operative engagement with the floor.Type: GrantFiled: February 2, 1993Date of Patent: September 20, 1994Assignee: Joerns Healthcare Inc.Inventor: John L. Edgerton, Jr.
-
Patent number: 5313686Abstract: A caddy is placed on a tank where the tank has receptacles beneath it for removably receiving casters. The caddy has support elements which are spaced apart at the spacing of the receptacles around the tank and the caddy being adapted to be placed on the tank with the support elements thereof removably fastened at the receptacles beneath the tank. A plurality of the receptacles around the tank enable the caddy to be placed at various positions around the tank. The invention is particularly useful with the tank of an electric vacuum cleaner.Type: GrantFiled: October 30, 1991Date of Patent: May 24, 1994Assignee: Shop-Vac CorporationInventor: Robert C. Berfield
-
Patent number: 5215367Abstract: A refrigerator door hinge including a bracket connected to and extending forwardly from the face of the cabinet on the side to which the door opens. The bracket includes an upper horizontal plate supporting the door, and a lower horizontal plate with a threaded aperture which captures a threaded post of a foot. The bottom of the foot has a pad and during installation, the foot is rotated to lower the foot until the pad contacts the floor thereby providing adjustable height hinge support directly to the floor.Type: GrantFiled: May 22, 1992Date of Patent: June 1, 1993Assignee: Amana Refrigeration, Inc.Inventors: Louis D. Montuoro, James M. Grace, Matthew W. Allison
-
Patent number: 5142734Abstract: A glide support assembly for adjustably mounting a glide on an article, such as a divider panel for dividing a building into a room area. This particularly relates to the details of a support tube arrangement which is inexpensively constructed from sheet metal and is rolled into a tubular form. An upper portion of the tube is provided with axial lances while below the axial lances there are transverse lances which serve to support a washer which restricts the penetration of the upper portion of the tube into the article. In order to save metal, the lower portion of the tube is of a reduced diameter.Type: GrantFiled: September 26, 1990Date of Patent: September 1, 1992Assignee: Herman Miller, Inc.Inventors: James A. Looman, Thomas I. Kane
-
Patent number: 5042110Abstract: A caster with an installation base comprises a shaft to be secured to a leg or bottom of a machine or instrument, a frame rotatably mounted on the shaft, movement wheels supported on the frame, an installation base arranged unrotatably and vertically movable on the frame, and a handle member for vertically moving the installation base. The frame comprises a connecting portion rotatably mounted on the shaft and an axle supporting portion for supporting an axle of the movement wheels. The installation base comprises a first portion arranged in the periphery of the connecting portion of the frame and formed in the outer peripheral surface with an external thread and a second portion positioned below the shaft to come into contact with an installation surface.Type: GrantFiled: May 16, 1990Date of Patent: August 27, 1991Assignee: Kabushikigaisha OriiInventor: Masaru Orii
-
Patent number: 5001808Abstract: A castor, which can efficiently absorb shock and the ball wheel of which can be alternatively received in or protruding beyond a cup-like shield thereof for positioning or moving. The caster comprises a sleeve which is secured to a hoop on the frame of a baby-walker for receiving a spring and a central shaft which comprises a ball wheel on the bottom. The sleeve comprises a Z-shaped track on its wall surface for the sliding and positioning therein of a lateral guide which is inserted therethrough and secured to the central shaft. A cup-like shield is secured to the bottom end of the sleeve to protect the ball wheel.Type: GrantFiled: March 29, 1990Date of Patent: March 26, 1991Inventor: Chin-Fu Chung
-
Patent number: 4930937Abstract: A traveling culvert/tunnel forming structure including upright waler assemblies positioned in transversely spaced relation on each side of said forming structure, the waler assemblies being adapted to receive forms on outside surfaces thereof. Horizontally adjusted header assemblies are supported at opposite ends by the spaced upright waler assemblies. Collapsible braces are disposed between the upright waler assemblies enabling the upright waler assemblies to move towards and away from one another. Multi purpose mounting brackets are mounted in rows on the upright waler assemblies which brackets are positioned inwardly from the waler assemblies. Rows of casters are swivelly mounted on the brackets inside of the rows of upright waler assemblies beneath the header assemblies. A pair of rows of leveling jacks are provided for elevating the forming structure and its casters out-of-contact with a ground supporting surface. The leveling jacks each have an upstanding jack shaft.Type: GrantFiled: July 26, 1988Date of Patent: June 5, 1990Assignee: Symons CorporationInventor: William R. Fulton
-
Patent number: 4918783Abstract: An improved adjustable wheel structure mainly adapted for use in a trailing vehicle on which a yacht, boat or motorcycle can be mounted for transportation; the present wheel structure is provided with a special nut member having its inner surface half threaded and half smoothed, and the nut member is able to be adjusted forward or backward so that the threaded inner surface thereof can be selectively engaged with a vertically disposed adjusting screw rod which has a smaller diameter than the central through hole of the slidable nut member so that the wheel structure can be smoothly adjusted in height; as the threaded side of the nut member is adjusted to disengage from the screw rod with the smoothed side thereof in contact with the adjusting screw rod, the wheel structure can be adjusted quickly rather than in stepwise manner.Type: GrantFiled: May 16, 1989Date of Patent: April 24, 1990Inventor: Jack Chu
-
Patent number: 4828208Abstract: A table is provided with a single retractable caster to facilitate manually transporting the table from one location to another. The retractable caster is located substantially directly below the center of gravity of the table, so that when the caster is extended to an "on" position, the table can be held in a generally poised condition over the caster wheel, and manually rolled across the floor. A pedestal-type base, having radially outwardly extending feet with glides provides outrigger support for the table during transport. The caster is shifted between the extended "on" position, and a retracted "off" position by simply tilting the table slightly about its base, such that a person having ordinary strength and dexterity can easily and safely move the table about a room without assistance.Type: GrantFiled: June 10, 1988Date of Patent: May 9, 1989Assignee: Joerns Healthcare, Inc.Inventors: Warren J. Peterson, Charles E. Warner, Peter J. Waldmann
-
Patent number: 4800617Abstract: This invention relates to a castor positioning device and in particular to one including a positioning shell generally conical in shape and having a hole at the top and an open end at the bottom, an actuating member formed at the center with a threaded through hole and a hexagonal contour from which extends downwardly an engaging portion having a thin stopper at the bottom end thereof and a castor having on the top a vertical screw extending upwardly through the hole of the positioning shell and then engaged with the threaded through hole of the actuating member, whereby the invention is applicable to be mounted on machines with or without transverse rods at the bottom frame thereof.Type: GrantFiled: February 18, 1988Date of Patent: January 31, 1989Inventor: Tsuang H. Yeh
-
Patent number: 4668029Abstract: A module of a filing cabinet houses in a pivotal-lid covered filing cabinet a pendent file. Four castors at respective corners retract upward into the housing for providing compact, fixed-location, vertically stackable storage of a plurality of such modules. With the castors extended a module can be drawn along behind the user at the end of a length of line, transporting heavy loads of documents held in the pendent file. A lever-powered spring-biased system actuated by lines holds the castors up-or-down as desired, and a key-lock may be used to secure the lid.Type: GrantFiled: February 18, 1986Date of Patent: May 26, 1987Inventors: Bernard L. Maizlish, Stanley J. Cardiges, Charles D. Hayes
-
Patent number: 4364148Abstract: A combination dual wheel castor and jack combination assembly is disclosed. The assembly comprises a support structure having a nut-like portion and elongated portions attached to the nut-like portion. The elongated portions extend from the nut-like portion in opposite directions. The support structure includes a hole passing through at least one of the elongated portions and the nut-like portion. The hole is internally threaded along at least a portion of its length. A jack means comprising an elongated threaded shaft portion and a foot portion rotatably mounted to one end of said shaft portion is adapted to be threaded into the hole in the support structure. By gripping and turning the nut-like portion of the support structure, the shaft portion of the jack means is caused to move relative to the support structure in one direction or the other. A castor portion of the assembly comprises a pair of wheels which are spaced apart and attached to a swivel frame by an axle.Type: GrantFiled: December 22, 1980Date of Patent: December 21, 1982Assignee: Sperry CorporationInventor: Harry J. McVicker
-
Patent number: 4339842Abstract: A combination caster and fixed support that supports an article either for rolling motion on a dual wheel assembly or alternatively supports the article on a floor engaging foot that raises the caster wheels from the floor. A central horn, having a vertical swivelling pintle, carries wheels on the opposite sides thereof supported on a common axle that permits the wheels to go up and down a limited distance relative to the horn to compensate for uneven floors. A threaded pad vertical support rod is received centrally in the horn between the wheels and carries a universally mounted channel-shaped pad at its lower end that selectively engages the floor as the threaded rod is lowered to raise the caster wheels off the floor. In the raised position of the foot the pad is locked in a tilted position between abutments on the lower end of the support rod and a lower surface on the horn so that the pad may easily pass over inclined floor surfaces.Type: GrantFiled: October 6, 1980Date of Patent: July 20, 1982Assignee: Stewart-Warner CorporationInventors: Frank J. Fontana, Francis J. Forte
-
Patent number: 4274799Abstract: A method and apparatus for loading pipeline from the shore onto a reel mounted on a vessel adjacent to the shore whereby the reel may be pivoted from its normal operational position in which the reel axis is perpendicular to the longitudinal axis of the vessel to a position in which the reel axis is parallel to the longitudinal axis of the vessel so as to thereby permit the vessel to be anchored parallel to the shore while the pipe-loading operation is being conducted.Type: GrantFiled: February 16, 1978Date of Patent: June 23, 1981Assignee: Martech International, Inc.Inventors: Benjamin C. Tisdale, III, William B. Nicholson
-
Patent number: 4249282Abstract: A retractable caster adapted to be secured, for example, to the legs of a power tool support stand so that with the casters in their lowered positions, the stand is rollingly supported on the casters, and with the casters raised, the support stand rests firmly and solidly on the floor. The retractable caster includes a rod which extends outwardly from the caster, the rod being engageable by the operator's foot to lower the caster into engagement with the floor, to lift the support stand clear of the floor, and to lock the caster in its lowered position with the stand rollingly supported on the caster.Type: GrantFiled: January 21, 1980Date of Patent: February 10, 1981Assignee: Emerson Electric Co.Inventor: Carl H. Little
-
Patent number: 4194266Abstract: An adjustable roller mechanism for a sliding closure having a case attachable to the sliding closure and a roller-mounting bracket mountable thereon for adjustable movement to varying positions extending from the case. A smooth surfaced cam is rotatably mounted to control the adjusted position of the roller bracket and a modified planocentric gear assembly operable by manually rotating a mounting shaft provides a gear reduction drive for rotation of the cam and for automatically locking the cam in any rotative position.Type: GrantFiled: June 29, 1978Date of Patent: March 25, 1980Assignee: Truth IncorporatedInventor: Jerome W. Natzel