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Assignee: Laitram, L.L.C.


Location: Harahan, LA
No. of patents: 100

1      
NumberTitleIssue Date
8181771Positive-drive spiral conveyor
A spiral conveyor for positively driving a conveyor belt along a helical path. The spiral conveyor includes a rotating cylindrical tower with parallel drive members extending from the bottom to the top of the tower on its periphery. Each drive member includes an out...
05/22/2012
8172088Air separator
Apparatus and method for separating lightweight waste from product with cyclic pulses of air. An air separator includes a blower duct directing air upward through product conveyed on a foraminous conveyor. A pair of counter-rotating vanes in the blower duct cyclical...
05/08/2012
8167119Low-pressure accumulation system
A low-pressure accumulation system and a conveyor belt in an accumulation conveyor for the use with the system. The belt, which is flanked on opposite sides by lines of gravity rollers, has a longitudinal lane of article-supporting belt rollers arranged in groups al...
05/01/2012
8167118Conveyors, belts, and modules with actuated rollers
A conveyor, a conveyor belt used in the conveyor, and a belt module used to construct the conveyor belt, in which the module includes belt rollers that extend outward of a conveyor surface of the modules to support conveyed articles. The belt rollers are mounted in ...
05/01/2012
8161854Box cutter and method
Apparatus and method for cutting boxes. The box cutter has a rectangular work area defined by the upper run of an oblique-roller conveyor belt selectively driven forward or reverse in coordination with the actuation and deactuation of the obliquely rotatable belt ro...
04/24/2012
8123021Methods for singulating abutting articles
Methods for singulating laterally abutting conveyed articles in a conveyor (60). The method includes separating laterally abutting articles by means of a first conveyor section (62) having in-line rollers (64) or oblique rollers rotating at a fi...
02/28/2012
8109384Conveyor and method for spacing packages
A spacing conveyor having article-accelerating rollers and selectively retractable stops to control the gaps between consecutive conveyed packages. A sensor measures the length of a package being fed onto the spacing conveyor. A controller selectively actuates one o...
02/07/2012
8028823Stacked attachments for modular conveyor belts
A detachable stacked attachment for a modular conveyor belt. An attachment, for example, a bucket, comprises a group of components arranged side by side in an aligned stack of parallel layers. Interior components are sandwiched between outermost and end components. ...
10/04/2011
8028618Cooker apparatus and method
A continuous cooker having a conveyor capable of repositioning product and cleaning itself of debris and a method for its operation. The cooker includes a conveyor that transports food atop a conveyor belt to a cooking chamber. Upper and lower diverting rollers guid...
10/04/2011
7980385Plastic conveyor belts and modules with lateral channels
An easy-to-clean conveyor belt constructed of a series of rows of belt modules having lateral depressions forming channels across the width of the belt along which water can be sprayed to flush debris off the side edge of the belt. Lateral ridges between the depress...
07/19/2011
7971701Diagonal sorter
In one embodiment, a conveyor system includes a conveyor belt having a plurality of conveyor belt rollers configured to divert articles on the conveyor belt, and a drive mechanism that engages the conveyor belt rollers, the drive mechanism being configured to drive ...
07/05/2011
RE42361Plastic conveyor belt modules with unitary sideguards
A plastic conveyor belt module with a unitary sideguard. The sideguard extends upward perpendicularly from the top conveying surface of a plastic module body. The sideguard extends longitudinally along the conveying surface with a leading edge laterally offset from ...
05/17/2011
7931137Case turner for a roller conveyor
A case turner comprising a powered roller conveyor with a bump turn and a tapered roller just downstream of the bump turn to assist in turning cases completely 90°. The larger diameter of the tapered roller is on the opposite side of the conveyor from the bump turn...
04/26/2011
7926647Systems and methods for providing an improved timing conveyor
A conveyor includes a conveyor belt, a plurality of rollers, and a flight. The rollers have lower surfaces configured to engage a roller-engagement surface, and upper surfaces that substantially form a plane, such that the rollers engage the roller-engagement surfac...
04/19/2011
7900768Split-level singulator
A split-level singulator for arranging and conveying articles in a single file. The singulator comprises a central conveyor and two flanking conveyors advancing in a conveying direction. Rollers in the conveyors protrude through the thickness of the conveyors and ri...
03/08/2011
7891481Conveyor belt for mounting oblique rollers on lateral rods
A conveyor belt and a method for providing a conveyor belt with rollers that rotate on axes oblique to the direction of belt travel. Axles are mounted on rods extending perpendicular to direction of belt travel. The axles have cylindrical outer bearing surfaces that...
02/22/2011
7886892Conveyor belt having rollers as tensile members
A conveyor belt including a plurality of rollers that serve as tensile members for the conveyor belt. In some embodiments, the rollers include roller members that rotate about longitudinal shafts, wherein the roller shafts receive and transmit tensile forces along a...
02/15/2011
7878319Conveyor switch
A sorting switch for diverting articles from one or more infeed conveyors to two or more outfeed conveyors. A cannulae pre-alignment conveyor receives articles from one or more infeed conveyors and selectively diverts individual articles into two or more lateral reg...
02/01/2011
7861849Merge conveyor including high-friction rollers
A merge conveyor comprising a timing conveyor feeding a singulating conveyor characterized by a transverse-roller conveyor belt having rollers with a high-friction peripheral surface. The timing conveyor delivers articles to the singulating conveyor one article at a...
01/04/2011
7861847Roller-belt depalletizer
A conveyor and a method for depalletizing and singulating packages. The conveyor comprises, in one version, a set-down conveyor on which pallet layers are deposited and conveyed, a row-separation conveyor that separates the pallet layer into spaced rows, a row-extra...
01/04/2011
7811157Peeler with self-adjusting rollers
Peeling apparatus and a method for biasing lower idle rollers of a roller-type peeling machine against power rollers to maintain the rollers in contact as the rollers wear. The apparatus includes biasing means, such as a cylinder applying upward pressure against the...
10/12/2010
7810637Positively driven, tracking flat belt and conveyor
A flat belt conveyor that is flexible along its length and has a chevron drive and a matching drive drum with helical drive surfaces on its periphery to drive and track the belt. The flat belt may comprise a series of flexible modules, or belt segments, of one or mo...
10/12/2010
7789221Living-hinge conveyor belt
A conveyor belt having rodless, living hinges and a method for making such a belt. One version of the belt has spaced apart belt modules joined by tension members spanning the gaps between consecutive modules. The tension members bend in the gaps to allow the belt t...
09/07/2010
7784601Pallet-forming roller-belt conveyor
A conveyor using a roller belt with rollers arranged to rotate on oblique axes to urge articles toward a side guide. The conveyor includes an oblique-roller belt supported on a carryway for running in a direction of belt travel. Rollers extend above an outer conveyi...
08/31/2010
7784397Method and apparatus for heating or cooling of foodstuffs
The invention relates to a method and a product for heating or cooling including freezing of food items in a rotating closed pipe serpent. The technology includes a closed non-circular rotating pipe serpent for processing of food items, where the food items are tran...
08/31/2010
7776212Water screen system with boot seal
A boot seal for a vertically traveling water screen and a method forming a boot seal. The boot seal comprises a bent plate that extends from an attachment end to a free end. The attachment end is attached to a frame mounted at the bottom of a channel of water flowin...
08/17/2010
7775345Conveyor and belt with clutch-driven flights
A belt conveyor having clutch-driven flights for extremely low-torque operation. The flights have pivot members that rotate about an axis over a limited range of angles. A clutch mechanism includes a spring pushing a clutch wheel against a pivot member. The clutch w...
08/17/2010
7770718Systems and methods for providing an improved timing conveyor
A conveyor includes a conveyor belt, a plurality of rollers, and a flight. The rollers have lower surfaces configured to engage a roller-engagement surface, and upper surfaces that substantially form a plane, such that the rollers engage the roller-engagement surfac...
08/10/2010
7743905Transverse-roller-belt conveyor and methods for case turning
A conveyor and methods for turning cases. The conveyor includes a pair of side-by-side belts running preferably at different speeds. The different belt speeds cause the leading edge of a package straddling both belts to move toward the slower belt. The two belts inc...
06/29/2010
7731021Conveyor link chain with universal coupling joint
A conveyor chain with a universal coupling joint connecting consecutive chain links. The joint includes a joint member unitarily molded with a first link body engaged by a separately formed joint element insertable into a second adjacent link body to link the two li...
06/08/2010
7731010Article-rotating belt conveyor
A conveyor (20) comprising at least one belt (22) defining an outer conveying surface divided into at least two laterally offset regions in which the rollers (50) in one region rotate in a first direction and the rollers (51) in a second ...
06/08/2010
7726461Apparatuses and methods for controlling the spacing of and ejecting conveyed objects
In one embodiment, apparatus for controlling spacing of objects conveyed by an object conveyor and for selectively ejecting objects from the object conveyor include flights that extend transversely across the object conveyor to limit travel of the objects to control...
06/01/2010
7722762Horizontally traveling water screen
A horizontally traveling water screen for filtering debris from a wide flowing stream. The water screen, which may be realized by a foraminous modular plastic conveyor belt, is formed in an endless loop trained between drive and idle sprockets rotatable on generally...
05/25/2010
7635060Apparatus and method for sensing conditions local to a modular conveyor belt
Apparatus and method for sensing conditions local to a modular conveyor belt and wirelessly transmitting signals representing those conditions to an off-belt belt monitoring system. In a preferred version, a load cell pin installed in a clevis formed at a hinge join...
12/22/2009
7617923Roller-belt conveyor for moving articles across the conveyor
A conveyor using a roller belt with rollers arranged to rotate on oblique axes to urge articles toward a side guide. The conveyor includes an oblique-roller belt supported on a carryway for running in a direction of belt travel. Rollers extend above an outer conveyi...
11/17/2009
7607533Conveyors and methods for non-uniformly accelerating conveyed articles
Conveyors and methods for operating conveyors to accelerate laterally adjacent conveyed articles over different distances. The conveyors provide a conveying surface atop rollers in a conveyor belt. The belt rollers ride on a bearing surface underlying the belt on a ...
10/27/2009
7588137Conveyor belt having rollers that displace objects
In one embodiment, a conveyor belt includes multiple roller sets, each roller set including a first roller and a second roller, the first and second rollers being placed in contact with each other such that driving of one of the rollers in a first angular direction ...
09/15/2009
7575113Screen belt and modules
A modular belt constructed of belt modules having a large open area, making the belt suitable for use as a traveling water screen. The modules include an intermediate portion composed of intersecting sets of link elements and transverse elements that form a gridlike...
08/18/2009
7556136Conveyor belt module with retained rollers
A belt module with embedded rollers retained in cavities in the module by retention structure insertable into the module. The rollers and cavities are elongated in the direction of belt travel and closely separated by narrow dividers that form outward-facing surface...
07/07/2009
7540368Transverse-roller belts and modules
A modular roller-top conveyor belt with a dense array of rollers freely rotatable toward the sides of the belt. The rollers are arranged in offset lines and columns in a checkerboard pattern on the top side of the belt. The rollers rotate on axes parallel to the dir...
06/02/2009
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