Did You Know...
...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7445122 | Mechanical bucket A mechanical bucket for separating small material from larger material. The mechanical bucket includes a bucket adapted to receive and retain material within the bucket and a roller screen assembly removably secured to a bottom portion of the bucket. The material re... | 11/04/2008 |
| 7290499 | Self-cleaning pet litter box assembly A self-cleaning pet litter box has a conveyor to incrementally transport clumped litter material and solid pet waste to a waste receptacle. The conveyor has one end configured to extend into a pet litter container of the self-cleaning litter box and an opposite exit... | 11/06/2007 |
| 7117996 | Adjustable object size grader An adjustable apparatus for sizing objects, mainly delicate foods, by the rotation of a set of at least 7 rollers, each roller having one less tooth so that the rollers move at progressively higher revolutions per minute, from the in-feed shear roller of 144 revolut... | 10/10/2006 |
| 7111742 | Device for separating postal items according to thickness classes The invention relates to a device for separating flat postal items according to thickness classes. A rigid system of overlapping lamellae (5) on two continuous traction mechanisms (3) revolving on two deflection rollers (4) provides a lamella-ty... | 09/26/2006 |
| 7025210 | Method and apparatus for attenuating sound from vibratory screening machines A method of attenuating the sound emanating from a bank of a plurality of vibrating screens of a plurality of vibrating screening machines including the steps of providing a master pulse of known phase and frequency, comparing the phase and frequency of a plurality ... | 04/11/2006 |
| 6983849 | Screen repair apparatus and method A screen repair apparatus is disclosed for temporarily repairing holes or worn screen elements of screens used in gyratory or vibratory screening machines in the coal mining and rock quarrying industries. The apparatus is comprised of a flat plate which covers the d... | 01/10/2006 |
| 6935512 | Shortening saver A hopper used in conjunction with a deep fryer basket to remove small pieces of the food item, breading or ice crystals from the basket before it is placed in a deep fryer for cooking. Removing the small particles of food prevents them from falling into the shorteni... | 08/30/2005 |
| 6913690 | Debris removal system An automatic debris removal system for screening an effluent stream. The automatic debris removal system comprises a support frame positioned proximate the effluent stream, a bucket positionably connected to the frame, and a camming system attached to the support fr... | 07/05/2005 |
| 6889851 | Bar screen A bar screen is primarily intended for use in draining liquid from wood chips and pulp without blocking the bar screen. The area of use is especially a process area, in which cooking and circulation liquid is removed from a pressure vessel when making chemical pulp ... | 05/10/2005 |
| 6820749 | Large, stationary, modular aggregate processing plant and method of manufacturing and installing same A method of manufacturing a large stationary, aggregate processing screening tower by fabricating weldment modules and preassembling them with aggregate processing equipment internal within the weldment modules, transporting the preassembled weldment modules to a fi... | 11/23/2004 |
| 6729476 | Oscillator apparatus for sorting out pieces of lumber An oscillator apparatus for sorting out pieces of lumber for separating smaller scraps of wood from larger usable pieces of wood. The oscillator apparatus for sorting out pieces of lumber includes a base assembly including leg members and elongate side members inter... | 05/04/2004 |
| 6401937 | Apparatus and method to separate corrugated paper from commingled waste An apparatus and method for separating recyclable corrugated paper from a stream of commingled waste. Commingled waste is loaded onto a conveyor with two alternating sets of jogger beams. A motor drives the jogger beams out of phase with respect to one an... | 06/11/2002 |
| 6006922 | Spacer for bar screen A doughnut or puck-shaped spacer has a centrally positioned square hole. A pie-shaped cutaway portion of the spacer allows the spacer to be elastically deformed mounting on a square rod. The rod and spacers join together the bars of a bar screen rack. Bar... | 12/28/1999 |
| 6003682 | Bar screen drive system Two racks of parallel screening bars each have rigid rack frames which extend beneath the bars. Two crankshafts with offset cam surfaces are mounted to the machine frame, and the rack frames are mounted by bearings to the crankshaft cam surfaces. The rack... | 12/21/1999 |
| 5950840 | Bar screen system with attached screens A bar screen is combined with a wire or punch screen which is suspended beneath the screen deck from a pair of oscillating bar support beams so that a single bar screen, screen combination, may not only size materials for thickness but remove small partic... | 09/14/1999 |
| 5941395 | Method and apparatus for conveying single use camera bodies while separating loose parts therefrom Used single use camera bodies (10) and miscellaneous loose parts (130, 132, 134) are dumped into a receiver conveyor (72) from which they move to a metering conveyor (88) which delivers them to a series of vibratory grid separators (106, 108, 110) having ... | 08/24/1999 |
| 5901857 | Bar screen bar mount A clamping bar assembly for a bar screen with a plurality of screen bars and in which at least one leg extends downwardly from each bar and a bar support beam extends below the bars. The bar of this invention includes a plurality of spacers positioned on ... | 05/11/1999 |
| 5893465 | Food product sorter An apparatus for sorting fragile objects has a grading structure connected to a base. The grading structure is movable in first and second substantially horizontal directions with respect to the base. A displacement mechanism imparts reciprocating, substa... | 04/13/1999 |
| 5868259 | Overhead drive bar screen Two racks of parallel spaced bars are supported for oscillatory motion from overhead drive shafts having eccentric cam surfaces. A first drive shaft is driven by a belt connected to a motor, and a second shaft is connected to the first shaft for synchroni... | 02/09/1999 |
| 5782365 | Blade guide for a blade screen A blade guide for a dual-frame wood chip sorter comprising a plurality of fingers having a slot therethrough to receive therein a blade, first and second mounting plates on each frame mounting thereon the bottom of a respective number of the fingers. At l... | 07/21/1998 |
| 5761335 | Apparatus for flash removal and optical inspection of O rings An apparatus for inspecting an O ring which detects surface flaws of O rings by successively sending O rings by a conveyor, projecting light and inputting pictures of O rings, and processing the pictures. The apparatus is provided with a vibrating screeni... | 06/02/1998 |
| 5746322 | Vibratory finger screen with lateral wedge members A vibratory screening machine for separating materials according to particle size includes a vibratory frame and a sizing screen supported by the frame having a plurality of finger plates. Each of the finger plates includes a plurality of fingers separate... | 05/05/1998 |
| 5641073 | Aligning of elongated objects Elongated objects are aligned by being placed on a vibratory grid having elongated holes arranged parallel to one another and to the direction of advance and removal of the aligned objects. They drop through the grid onto conveying means which then moves ... | 06/24/1997 |
| 5560494 | Loop-like material sorting device A loop-like material sorting device includes a comb-like member arranged with an inclination in a supply path supplied with materials to be sorted and formed in a row at a pitch corresponding to the shape or size of loop-like materials, and a vibrating de... | 10/01/1996 |
| 5560496 | Adjustable bar screen The bars of one of two sets of interleaved screen bars is extended beyond the interleaved portion of the screen bed, thus forming a region of the screen bed which has screens particles of intermediate dimensions. A second improvement is a clamping member ... | 10/01/1996 |
| 5476179 | Adjustable bar screen The bars of one of two sets of interleaved screen bars is extended beyond the interleaved portion of the screen bed, thus forming a region of the screen bed which has screens particles of intermediate dimensions. A second improvement is a clamping member ... | 12/19/1995 |
| 5462174 | Sieve apparatus for combine A sieve assembly for combine includes a frame having side frame and divider members, a wire rotatably supported and extending transversely between the side and divider members. The wire has a majority portion and offset portion and at least one slat mount... | 10/31/1995 |
| 5398819 | Blade tensioning mechanism A tensioning member for a blade screen that permits simultaneous tensioning of a plurality of blades in a blade screen, such as for wood chip sorting, is shown. The blade screen tensioning member includes a hinged bracket that may be supported on a portio... | 03/21/1995 |
| 5392930 | Adjustable bar screen The bars of one of two sets of interleaved screen bars is extended beyond the interleaved portion of the screen bed, thus forming a region of the screen bed which has screens particles of intermediate dimensions. A second improvement is a clamping member ... | 02/28/1995 |
| 5392931 | Adjustable bar screen The bars of one of two sets of interleaved screen bars is extended beyond the interleaved portion of the screen bed, thus forming a region of the screen bed which has screens particles of intermediate dimensions. A second improvement is a clamping member ... | 02/28/1995 |
| 5368168 | Bar screen with bars of staggered height A bar screen system comprising two sets of interleaved bars. In each set, the height of the individual bars is staggered so that every third bar is higher than the other bars, which are the same height. The bars are driven such that the bars in one set ar... | 11/29/1994 |
| 5305891 | Wood chip bar screen deck arrangement A screening deck for a wood chip screening apparatus including a plurality of parallel bars mounted in separate, interlaced grids, with the bars of at least one grid having top surfaces disposed in at least two planes, such that, during oscillatory moveme... | 04/26/1994 |
| 5284251 | Tension bar screen A bar screen apparatus (10) having inner and outer frame assemblies (14, 16), with each frame assembly including a plurality of thin, blade-like bar elements (44). Each frame assembly (14, 16) further includes means for maintaining the blade-like bar elem... | 02/08/1994 |
| 5238124 | Apparatus for sorting hard gelatine capsules The apparatus makes use of a pair of rotating combs (11-14), the discs of the second comb being interposed between the discs of the first comb and positioned at the top between fixed guide plates (17). The discs of the first comb intercept the streams of ... | 08/24/1993 |
| 5228576 | Device for sorting small articles A device for sorting small articles by size. A chute conveys the articles. A gap allows articles of less than a prescribed size through it. The gap is between the chute and a mechanism that extends across the slide. The mechanism detaches and conveys larg... | 07/20/1993 |
| 5191904 | Trash removal apparatus and method A trash removal system for separating trash and loose tobacco shreds from cigarettes that are rejected in cigarette manufacturing and packaging operations. A mixture comprising cigarettes, cigarette wrapper, trash and loose tobacco is metered onto a vibra... | 03/09/1993 |
| 5188128 | Apparatus for classifying particles of tobacco and the like Apparatus for separating longer tobacco particles from shorter tobacco particles has an elongated vibratory trough for the advancement of a stream containing a mixture of shorter and longer particles from a delivering conveyor to a collecting receptacle. ... | 02/23/1993 |
| 5150798 | Crumb removal system A crumb removal system has an inclined chute extending beneath a horizontal vibratory conveyor trough with an upper convex curved end of the inclined chute spaced in front of the discharge end of the conveyor trough. The spacing between the upper curved e... | 09/29/1992 |
| 5108589 | Material separating apparatus A material separating apparatus for separating particles up to a preselected size from a material having particles of different sizes therein includes a trough having a material input end longitudinally spaced from a material discharge end. The apparatus ... | 04/28/1992 |
| 5069778 | Screen deck with pedestal mounted slats A screen deck having spaced, canted parallel slats which present screening slots between them, wherein the slats are mounted on pedestals that are positioned and aligned by parallel rods which extend transversely through the pedestals. The pedestals are s... | 12/03/1991 |
