William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7958849 | Egg roll out mechanism for egg collector The invention relates to an egg collection conveyor and a vertical feeding device for egg collection, and particularly relates to an egg roll out mechanism for an egg collector. The egg collection conveyor collects eggs produced at each cage of a multiple-stage chic... | 06/14/2011 |
| 7047904 | Egg harvester An egg harvester (100) has a shuttle (101) where a top run (32) of a conveyor (30) defines horizontal slots (40, 90) to receive eggs from a mat (10) on which eggs are laid. Damaged eggs and litter are separated on a transfer... | 05/23/2006 |
| 6394031 | Nest arrangement for poultry A laying nest arrangement for poultry comprises at least one housing with housing walls having at least one passage opening for the poultry, and at least one housing floor. A transporting device for laid eggs is guided along an edge of the housing floor. ... | 05/28/2002 |
| 6343688 | Conveyor and escalator for transporting eggs and the like A conveyor and escalator for transporting objects having a substantially uniform size and length such as eggs horizontally, vertically and helically vertically comprising at least one flexible endless support means; a drive means operably engaging said fl... | 02/05/2002 |
| 6019065 | Method and apparatus for reducing damage to eggs A method and an apparatus for preventing a second egg from directly contacting a first egg when the second egg exits a cage travelling in a first direction through a cage opening onto a conveyor belt travelling in a second direction substantially transver... | 02/01/2000 |
| 5950564 | Hen nesting apparatus and brood control method Nesting apparatus (2) for hens includes a line of nesting cages (2), and an ejector member (4) in each cage (2), individually actuatable independently of the ejector members (4) in the other cages (2) to eject a hen from the respective cage (2) upon the e... | 09/14/1999 |
| 5673649 | Egg escalator An egg escalator (23) of the present invention transfers eggs from one level (L1) to another level (L2) and it comprises a first conveyor (25) having an upper reach (27) inclined at an angle and extending between the one level (L1) to the other level (L2)... | 10/07/1997 |
| 5562067 | Egg harvester An egg harvester has hingedly connecting nesting boxes resting on an elongate belt fixed at each end and along which a shuttle is pulled by a drive cable. The belt and a second conveyor define two slots which pass under the nesting boxes. The eggs and lit... | 10/08/1996 |
| 5279254 | Egg collector having separate continuous flexible belts of baskets for each cage conveyor An egg collection device for collecting eggs from an array of confinement cage rows comprises separate continuous flexible belts of individual, interchangeable basket members themselves linking together to form the egg collector. Each individual basket me... | 01/18/1994 |
| 5094186 | Laying nest for poultry A laying nest for poultry includes a housing having an entrance and a two-part nest bottom, with the respective parts being inclined toward one another and substantially toward a center of the nest so as to create a slit through which laid eggs may roll d... | 03/10/1992 |
| 5058530 | Device for collecting eggs A device for collecting fertilized eggs of poultry consisting substantially of at least one space bounded by a base board, a roof and three walls for accommodating at least one egg-laying annual, on which space a discharge conveyor is arranged close to th... | 10/22/1991 |
| 5002016 | Device for collecting eggs A device for the collection of eggs includes a number of egg conveyor belts lying above one another, an egg discharge belt and a device disposed between the egg conveyor belts and the egg discharge belt for transferring eggs from the egg conveyor belts to... | 03/26/1991 |
| 4846337 | Arrangement for manipulating eggs An arrangement for removing eggs from laying houses disposed at different levels includes a plurality of branch conveyors each of which is arranged at a respective level and extends by the corresponding laying houses. The branch conveyors function to coll... | 07/11/1989 |
| 4766849 | Egg collection system A system for collecting eggs of laying hens which includes a plurality of poultry cages encaging several laying hens, egg leading slopes causing eggs to roll out the poultry cages and a conveyor belt receiving and delivering eggs rolling from the cages, h... | 08/30/1988 |
| 4653430 | Modular chicken houses and egg collecting means The chicken coops of this invention are built up of modular parts, the basic element being partitions separating individual cells from one another in which cells egg laying hens are confined. Each such partition has an uppermost edge which extends oblique... | 03/31/1987 |
| 4589371 | Apparatus for gathering eggs in bank of cages for chickens Apparatus for gathering eggs in banks of cages for chickens, in which only an endless coupling chain is utilized, whose advancing run slides in front of the exits of the cages of one row in a stage, and the reverse run slides in front of the exits of the ... | 05/20/1986 |
| 4416219 | Egg collecting system and method An automated, tiered, egg collecting system and method for tiered confinement cage rows for poultry in which each row of confinement cages has a cage-row conveyor for delivering eggs to an end of the cage row. Under the teaching of the invention, a vertic... | 11/22/1983 |
| 4364332 | Integrally constructed poultry nesting housing for automatically collecting eggs The present invention relates to a automatic egg collection system that comprises an elongated integrally constructed housing including two spaced apart rows of individual laying nests that are inclined such that the eggs laid in the respective nests are ... | 12/21/1982 |
| 4345682 | Egg transporting system An egg transporting system having a plurality of egg belt conveyors leading from cages of a poultry installation includes a transition mechanism for dividing and orienting the eggs at the output end of each of the egg belt conveyors into a plurality of se... | 08/24/1982 |
| 4258839 | Egg transfer bar An egg transfer bar for use in groups arranged in parallel extending rows to form egg carrying conveyors, wherein each bar includes a main shaft, said main shaft defining a plurality of egg receiving locations each including a set of support members which... | 03/31/1981 |
| 4235199 | Battery arrangement for laying hens An improved automatic battery for laying hens is disclosed. The battery consists of cages (2) having sloping floor in order to cause the eggs to roll toward a conveyor belt (8). To prevent egg breakage caused by eggs rolling to fast, a cable (10) restrain... | 11/25/1980 |
| 4226211 | Egg collector Apparatus for collecting eggs from a number of poultry cages is disclosed. The apparatus includes a collector conveyor belt for receiving the eggs from egg cages, and a ramp conveyor belt for de-escalating the eggs from the collector conveyor. The cage bo... | 10/07/1980 |
| 4199051 | Egg transporting system An egg transporting system for receiving eggs from a plurality of egg belt conveyors leading from cages of a poultry installation receives eggs on an input side and transfers them to an opposite side of the system to an accumulation conveyor. The transpor... | 04/22/1980 |
| 4159696 | Egg collector An egg collector for use in conjunction with a multi-tier poultry cage system to collect eggs from cage belts at various levels and to transfer the eggs to a common cross-belt conveyor. The collector comprises a series of intermediate conveyors each inclu... | 07/03/1979 |