William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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 |
| 7650986 | Shaker conveyor assembly having an electronically controllable stroke speed A shaker conveyor assembly for moving objects includes a conveying element adapted for movement in first and second directions in repeated rectilinear fashion so as to convey items placed on the conveying element in one of the directions. The assembly includes an el... | 01/26/2010 |
| 7451869 | Article carrying apparatus An article carrying apparatus is capable of carrying an article efficiently and correctly. The article carrying apparatus for carrying an article, includes: a housing; an input shaft rotatably supported by the housing; an output section supported by the housing in s... | 11/18/2008 |
| 7416658 | Elliptical motion drive device for a step screen Disclosed herein is an elliptical motion drive device for use in a step screen. The elliptical motion drive device comprises first and second eccentric wheels coupled to a single drive shaft to be eccentrically positioned to each other. Upon rotation of the drive sh... | 08/26/2008 |
| 7367358 | Medical fluid delivery system and method relating to the same A medical fluid delivery system for the use in the delivery of medical fluids. The medical fluid delivery system may include a pumping system, a disposable medical fluid line set and a valve operating system. The disposable tubing line set may include valves adapted... | 05/06/2008 |
| 7290648 | Device for moving a heavy load Arrangement for moving a heavy load wherein the arrangement includes at least one actuating unit. The at least one actuating unit utilizes a support for supporting the heavy load. A plurality of jacks are coupled to the support. A first movable element is adapted to... | 11/06/2007 |
| 7241241 | Device for setting a direction A direction setting device has a frame and a rotatably mounted shaft which supports a first belt pulley whose rotational position defines a direction to be set. A rotary motor on the frame supports a second belt pulley, and an endless belt extends around the first a... | 07/10/2007 |
| 7219792 | Article carrying apparatus An article carrying apparatus for carrying, in a carrying direction, an article placed on a carry face of a carry section making use of a vibration, includes: the carry section provided with the carry face of which the carrying direction is linearly restricted; and ... | 05/22/2007 |
| 7216757 | Differential motion conveyor A differential motion conveyor (20) for conveying products along an elongated trough structure (22) supported for reciprocal movement relative to a counterweight base structure (24) of a weight significantly greater than the weight of the trough... | 05/15/2007 |
| 7206681 | Adaptive vibration management system for a work machine A vibration management system for a work machine may include at least one machine component configured to respond to input commands from an operator of the machine. One or more vibration sensors may be configured to output a signal indicative of a vibration level ex... | 04/17/2007 |
| 7188722 | Article carrying apparatus An article carrying apparatus is capable of inhibiting a force that acts on the apparatus due to a vibration being applied to its carry section in order to carry an article. The article carrying apparatus includes: a carry section for linearly restricting a carrying... | 03/13/2007 |
| 7185754 | Conveyor A conveyor (10) that delivers product to a plurality of transverse conveyors of chutes (11). The conveyor (10) includes conveyor segments (12) along which the product is conveyed. Product is removed from the conveyor (10) by the la... | 03/06/2007 |
| 6880693 | Conveyor motor having bellows A differential impulse conveyor having a conveyor motor which uses bellows to provide the driving force for the conveyor. The conveyor includes a housing within which is mounted the conveyor motor. The conveyor motor has a pair of bellows, a drive plate and a fluid ... | 04/19/2005 |
| 6782995 | Two-way vibratory conveyor and stabilizer rocker arm therefor A two-way vibratory conveyor includes at least one trough mounted on a base and a drive which reciprocally moves the trough(s). The conveyor, which in one embodiment has two interconnected troughs and in another embodiment has a single trough, includes a drive which... | 08/31/2004 |
| 6722492 | Conveyor motor having bellows A differential impulse conveyor having a conveyor motor which uses bellows to provide the driving force for the conveyor. The conveyor includes a housing within which is mounted the conveyor motor. The conveyor motor has a pair of bellows, a drive plate and a fluid ... | 04/20/2004 |
| 6708815 | Article conveyor device There is provided an article conveyor device which may effectively convey an article by a cam drive. The article conveyor device comprises a reciprocating portion which reciprocates by being driven by a cam, and an article conveyor portion for conveying an article, ... | 03/23/2004 |
| 6637584 | Component carrying device A component carrying device has a simple constitution, and is capable of lining up components and carrying them in one direction with high reliability. The device comprises a guide groove for lining up components into one line and guiding them; a carrying... | 10/28/2003 |
| 6634488 | Driving mechanism for shaking table The driving mechanism has a drive shaft which rotates a driving block. A cam is mounted for rotation to the driving block and is received in a slot of a follower. As the cam rotates, it rolls backwards and forwards in the slot and causes the follower to r... | 10/21/2003 |
| 6598733 | Article conveyor device The article conveyor employs two cams of different configuration. One cam imparts oscillatory motion to an output shaft; whereas the other cam imparts a reciprocating motion. The article conveyor moves in a conveying direction from a first position to a s... | 07/29/2003 |
| 6490941 | Elliptic motion driving apparatus for a step screen An elliptic motion driving apparatus for a step screen in which the elliptic motion of an elliptic motion driving unit is transferred to a driven link so as to make steep movable plates, connected by a movable column, perform elliptical movement in a long... | 12/10/2002 |
| 6415912 | Driving mechanism for shaking table The driving mechanism has a drive shaft which rotates a driving block. A cam is mounted for rotation to the driving block and is received in a slot of a follower. As the cam rotates, it rolls backwards and forwards in the slot and causes the follower to r... | 07/09/2002 |
| 6398013 | Differential impulse conveyor and method A differential impulse conveyor 10, 80, 90, 100 includes a tray 12 which is driven in a forward direction at a slow speed and a backward direction at a higher speed to slide goods with respect to the tray and thereby move goods along the tray. The drive m... | 06/04/2002 |
| 6371282 | Cam controlled conveyor A vibrating conveyor has a conveying plate (6) which carries objects to be conveyed. The conveying plate (6) is movable back and forth between a first and a second end position by a cam wheel (7) and a pressure spring (8). The cam wheel (7) has on its per... | 04/16/2002 |
| 6269940 | Reversing conveying brute force vibratory feeder The present invention relates to a mechanical vibrating drive system for supplying a consistent, elliptical driving force to a conveyor trough. In a preferred embodiment of the invention, the vibrating conveyor has three parallel shafts, the intermediate ... | 08/07/2001 |
| 6209713 | Part transfer apparatus A part transfer apparatus includes a guide groove for aligning and guiding parts, a blade placed at the bottom of the guide groove so as to move forward and backward in the direction of the groove, and a driving device for reciprocally driving the blade s... | 04/03/2001 |
| 6079548 | Differential impulse conveyor and method A differential impulse conveyor 10, 80, 90, 100 includes a tray 12 which is driven in a forward direction at a slow speed and a backward direction at a higher speed to slide goods with respect to the tray and thereby move goods along the tray. The drive m... | 06/27/2000 |
| 5850906 | Bi-directional, differential motion conveyor There is provided a differential motion conveyor comprising a trough and a conveyor drive. The conveyor drive comprises a clutch/brake assembly which is selectively activated for moving the trough at a first speed in a first direction and selectively deac... | 12/22/1998 |
| 5794757 | Differential impulse conveyor and method A differential impulse conveyor 10, 80, 90, 100 includes a tray 12 which is driven in a forward direction at a slow speed and a backward direction at a higher speed to slide goods with respect to the tray and thereby move goods along the tray. The drive m... | 08/18/1998 |
| 5699897 | Drive mechanism for a linear motion conveyor A drive mechanism is provided for interconnection between a motor having a substantially constant rotational output and a linear motion conveyor. The linear motion conveyor includes a tray which may be movable in a first reciprocating direction at a slow ... | 12/23/1997 |
| 5542804 | Modular solids charger A modular solids charger for feeding granular solid material to a reactor, the charger comprising a chassis, a charger plate support frame vertically and angularly adjustable with respect to the horizontal secured to the chassis, a removable reciprocable ... | 08/06/1996 |
| 5536136 | Mechanical loader A mechanical loading device capable of generating a substantially rectilinear output motion for the purpose of transporting workpieces between work stations. The mechanical loading device is capable of producing the rectilinear output motion such that a w... | 07/16/1996 |
| 5392898 | Dual drive conveyor system with vibrational control apparatus and method of determining optimum conveyance speed of a product therewith A dual drive conveyor system which has a vibration control mechanism for adjusting the application of vibratory force to the material-conveying member without changing the direction of the resultant line of vibratory force generated thereby, wherein the v... | 02/28/1995 |
| 5351807 | Drive mechanism for a linear motion conveyor A drive mechanism is provided for interconnection between a motor having a substantially constant rotational output and a linear motion conveyor. The linear motion conveyor includes a tray which may be movable in a first reciprocating direction at a slow ... | 10/04/1994 |
| 5178258 | Inertial conveyor system An inertial-type conveyor system for the moving of articles from one position to another, the system having minimal detrimental vibrations. During a forward stroke of a tray of the system, the tray moves at a first acceleration whereby the frictional cont... | 01/12/1993 |
| 5046602 | Inertial conveyor system An inertial-type conveyor system for the moving of articles from one position to another, the system having minimal detrimental vibrations. During a forward stroke of a tray of the system, the tray moves at an acceleration less than that required to overc... | 09/10/1991 |
| 4724949 | Conveyor apparatus for discharging pressed products and similar items from a press An apparatus for conveying and discharging pressed products or similar items from a press. The apparatus has a discharging trough which can be mounted on a portion of the body of the press, and a reciprocating member for causing a reciprocatory motion of ... | 02/16/1988 |
| 4534696 | Article transfer mechanism A transfer mechanism has a tool mounting surface movable in a generally inverted U-shaped path back and forth between spaced stations thereby making the mechanism useful, for example, as part of a pick and place device for picking up articles one at a tim... | 08/13/1985 |
| 4436199 | Cam-operated multistroke feed mechanism In apparatus for transferring articles through a series of processing stations, a multistroke feed mechanism is operatively connected to a feed member which reciprocates for causing the transfer of the articles. The multistroke feed mechanism comprises a ... | 03/13/1984 |
| 4387800 | Walking-beam conveyor A walking-beam conveyor has a pair of horizontally and longitudinally extending fixed beams flanking a central movable beam. A plurality of support yokes each have a relatively low central part underneath the movable beam and a pair of relatively high sid... | 06/14/1983 |
| 4339029 | Shaker conveyor and drive mechanism therefor A shaker conveyor is operated by a drive mechanism using rotary motion converted to reciprocating motion by an eccentric, which provides for a shaker conveyor driven by a compact drive system.... | 07/13/1982 |
| 4295780 | Apparatus for automatically transferring workpieces An apparatus for automatically transferring workpieces which apparatus includes a longer arm of which one end is adapted to be reciprocally moved in the lengthwise direction of the apparatus while the other end is reciprocated in the normal direction, the... | 10/20/1981 |