Class 193/6 - Extensible trough

Subclass of Class 193 - Conveyors, chutes, skids, guides, and ways
Definition: The chute consists of an open trough made in sections relatively
No. of patents: 32
Last issue date: 10/21/2008

Number	Title	Issue Date
7438171	Retractable and extendable material loader apparatus for directing material onto a conveyor A retractable and extendable material loader that directs material onto a conveying surface of a belt conveyor has a retractable and extendable tubular length where the length of the loader is extended to direct material through the loader onto the conveyor, and a l...	10/21/2008
7320639	Lid to lower basket sealing apparatus for a cotton packager machine A cotton receiving basket for an on-board cotton harvesting machine including a lower basket having a plurality of upwardly extending walls having upper portions including elongate upper seal elements extending therealong, respectively; a basket lid having a plurali...	01/22/2008
7238543	Methods for marking a bare semiconductor die including applying a tape having energy-markable properties A method used for marking a semiconductor wafer or device. The method and apparatus have particular application to wafers or devices which have been subjected to a thinning process, including backgrinding in particular. The present method comprises reducing the cros...	07/03/2007
7094618	Methods for marking a packaged semiconductor die including applying tape and subsequently marking the tape The present invention provides a method and apparatus for marking a semiconductor wafer or device. The method and apparatus have particular application to wafers or devices which have been subjected to a thinning process, including backgrinding in particular. The pr...	08/22/2006
7036647	Bulk load device having vertical funnel assembly A conveying apparatus includes a conveying assembly and a vertical funnel assembly mounted at a discharge end of the conveying assembly for guiding the discharge of bulk material. The funnel assembly includes a vertical row of frames slidably disposed on a pair of v...	05/02/2006
7033066	Hydraulic actuator assembly with rotation restraint A hydraulic actuator assembly comprises a pair of hydraulic actuators having cylinders, pistons, and piston rods that are ganged together for extension of their respective piston rods in longitudinally opposite directions wherein at least one of the actuators compri...	04/25/2006
6938749	Discharge chute for concrete A light weight but strong extension chute for discharging concrete from a concrete transportation vehicle or a cement mix plant. An extension concrete chute comprising a chute assembly including a frame having a first end and a second end, with each end including an...	09/06/2005
6918481	Discharge chute for concrete A light weight but strong extension chute for discharging concrete from a concrete transportation vehicle or a cement mix plant. An extension concrete chute comprising a chute assembly including a frame having a first end and a second end, with each end including an...	07/19/2005
6904671	Integrated circuit chip handling apparatus and method The present invention provides for an apparatus and method for handling integrated circuit (IC) chips such as thin small outline package (TSOP) IC chips. Embodiments of the invention are directed toward removal of TSOPs from device under test (DUT) boards. By use of...	06/14/2005
6868953	Concrete chute apparatus A concrete chute apparatus for preventing the accidental discharge of cement residue from the chute of a cement truck while the truck is moving is disclosed. To attain this, an abutment plate obstructs the opening of a cement truck caused by the folding of an articu...	03/22/2005
6845858	Concrete chute A concrete chute is extruded in two sections for permitting a light weight chute to be constructed wherein the sections are welded together and reinforced with a bottom stiffener for ensuring stability of the chute. A liner is designed to be installed from a distal ...	01/25/2005
6719118	Fold-over chute safety device The spacing device mounted to a two-section chute system prevents inadvertent contact between the two chute sections. The spacing device includes a mounting flange and a blocking member positionable between first and second pivotally attached chute sections of a con...	04/13/2004
6578694	Discharge chute control system A motor driven discharge chute control system for automatically controlling the lateral position of a concrete discharge chute associated with a transit mixer vehicle is disclosed including a reversing motor connected to an output gear normally engaged to...	06/17/2003
6367606	Concrete chute with liner A concrete chute with liner includes a chute, a pair of rail tubes, a front flange, a rear flange, and a slide-in liner. A single rail tube is attached to each side of the chute. A front flange is attached to a front end of the chute. A rear flange is att...	04/09/2002
6186304	Telescopic chute assembly The telescopic chute assembly may be used to discharge cement from a discharge end of a concrete mixer mounted on a truck. The chute assembly has several telescopic chute sections for receiving the material from the mixer. The chute sections have a plural...	02/13/2001
6041907	Hydraulically operated concrete transfer chute A hydraulically operated concrete transfer chute having a plurality of telescoping generally U-shaped chute sections which are arranged to telescope together onto a first chute section pivotally connected to a concrete truck, the inner end of the first ch...	03/28/2000
5927461	Apparatus for automatically sealing an articulated chute A mechanical device for automatically positioning a closure plate for sealing the opening created by the folding of adjacent segments of an articulated chute to thereby prevent undesired discharge or leakage from the chute is provided. The device, which i...	07/27/1999
5673779	Telescopic discharge chute for bulk material A telescopic discharge chute for bulk materials is described including telescoping first and second elongated tubular members. The first tubular member includes a first internal bore leading from a bulk material infeed at a first top end, to first bottom ...	10/07/1997
5660260	Foldable chute with personnel protection feature This chute comprises a first section and a second section having its inner end portion pivotally connected to the outer end portion of the first section in a manner that allows the second section to be pivoted from a folded position into a position of ali...	08/26/1997
5605398	Flap for cement truck back A rigid cover attached to the chute of a cement truck can prevent the accidental discharge of cement residue from the chute of the cement truck while the truck is moving. The use of a rigid cover prevents the bending of the cover under the weight of the c...	02/25/1997
5551776	Telescoping discharge chute for concrete trucks A telescopible discharge chute apparatus for a mobile concrete production machine is movable into a transport position located within the lateral confines of the concrete truck. The telescopible discharge chute apparatus utilizes individual chute sections...	09/03/1996
5354128	Concrete mixer chute cap A cover for preventing the unwanted discharge of concrete mixer chute residues from the chute, has a water impermeable cap with side panels which are gathered at the one end with an elastic band for retaining he cap in place, and which has a strong elasti...	10/11/1994
5289909	Chute for bulk materials An improved chute for conveying bulk materials from a higher location to a lower location includes a number of frustoconical hoppers, which are held in vertically-spaced relationship with the conical axes of adjacent hoppers inclined in different directio...	03/01/1994
5178252	Telescopic chute for a mixer truck A linear extendable telescopic chute (10) pivotally mounted on a cement mixer truck (12) by a chute attachment structure (20). Chute (10) includes a first chute section (40) and a plurality of telescopically fitted movable chute sections (74, 76) structur...	01/12/1993
5035313	Telescopic chute for a mixer truck A dispensing chute comprised of a plurality of slidable telescopically fitted sections for conveying materials from the discharge end of a drum of a mixer truck to a point remote from the vehicle. The chute sections are structured of interlocking open met...	07/30/1991
4919249	Multiple section chute restrictor One of the hinges between sections of the distributing chute of a concrete mixer is provided with a stop which prevents abutment of chute section and the corresponding possibility of injury to hands of a workman engaged in unhinging the chute sections. On...	04/24/1990
4711334	Telescopic chute for mixer discharge A telescoping extension chute has a first semicircular section with an inlet end for pivotal connection to a main chute on a mixer truck and a pair of tubular tracks attached along upper longitudinal edges. An intermediate section with a semicircular cros...	12/08/1987
4634285	Portable auxiliary discharge chute assembly A portable auxiliary discharge chute assembly for use with a mobile concrete mixer to deliver premixed concrete to an area normally beyond the delivery area of the mobile concrete mixer comprising an inner and outer chute section operatively affixed to a ...	01/06/1987
4589519	Vehicle mounted fire escape chute A telescoping, extensible fire escape chute is mounted on a vehicle carrying a telescoping boom having a passenger basket mounted at an upper end. The fire escape chute is formed of a plurality of telescoping sections which automatically extend and retrac...	05/20/1986
4577725	Vehicle mounted fire escape chute A telescoping, extensible fire escape chute is mounted on a vehicle carrying a telescoping boom having a passenger basket mounted at an upper end. The fire escape chute is formed of a plurality of telescoping sections which automatically extend and retrac...	03/25/1986
4436518	Metal trough A flanged trough is provided having flanges along each side of the trough with a smooth continuous curve between the flanges and the body of the trough and a bar of metal welded along the underside of each longitudinal edge of the metal sheet before the f...	03/13/1984

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Class 193/6 - Extensible trough