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Wearable Device For Feeding and Observing Birds and Other Flying Animals
A device for feeding and observing flying animals comprising a hat, a support mounted on the hat and extending outward from the hat, and a feeder mounted on the support.
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| Number | Title | Issue Date |
| 8168910 | Contact for a medium-voltage vacuum circuit-breaker with reinforced structure, and an associated circuit-breaker or vacuum circuit-breaker, such as an AC generator disconnector circuit-breaker A vacuum circuit-breaker wherein at least in one of the contacts at least one stud is used as a spacer, and is disposed between the mechanical connection portion and the circular plate of the contact body in such a manner as to avoid the collapse thereof during a cl... | 05/01/2012 |
| 8164019 | Contact for a medium-voltage vacuum circuit-breaker with improved arc extinction, and an associated circuit-breaker or vacuum circuit-breaker, such as an AC generator disconnector circuit-breaker A vacuum circuit-breaker wherein one contact body is made with two windings implanted concentric with one another and connected electrically in parallel. The second winding is in the form of an solid part with an annular ring. The circuit-breaker increases the axial... | 04/24/2012 |
| 7250584 | Contact element comprising rounded slot edges The aim of the invention is to prevent local spikes from being created in a contact element of a contact arrangement used for interrupting a current in a distribution network, said contact element comprising a contact support (8) that encompasses a hollow cyl... | 07/31/2007 |
| 7173208 | Vacuum interrupter A vacuum interrupter for reducing contact resistance and thereby reducing electromagnetic repulsive force between electrodes, is obtained. The vacuum interrupter includes a stationary electrode rod fixedly placed on one closed end of a cylindrical evacuated envelope... | 02/06/2007 |
| 7041929 | Contact arrangement for a vacuum switch tube The invention relates to a contact arrangement for a vacuum switch tube for low-voltage power switches. The aim of the invention is to reduce the contact force required to control short circuit currents. To this end, a twin-contact contact arrangement is used wherei... | 05/09/2006 |
| 7038157 | Vacuum circuit breaker with coaxial coil for generating an axial magnetic field in the vicinity of the contact members of the circuit breaker Vacuum circuit breaker, provided with a casing, in which a fixed and movable contact member are each attached to a supporting contact rod and supported therein in a mutually electrically isolated manner, and a coil coaxial to the casing and surrounding the contact m... | 05/02/2006 |
| 6870118 | Contact for vacuum interrupter, and vacuum interrupter using same A contact for a vacuum interrupter, includes: 1) a contact plate; and 2) a contact carrier. The contact carrier includes: a first end face which is fitted with the contact plate, and a peripheral face which is formed with a slit portion in such a manner as to form a... | 03/22/2005 |
| 6762388 | Vacuum cartridge for an electrical protection apparatus such as a switch or circuit breaker The present invention relates to a vacuum cartridge for an electrical protection apparatus such as a switch or a circuit breaker, said cartridge comprising an enclosure of substantially cylindrical shape closed by two end plates, two contacts extending axially insid... | 07/13/2004 |
| 6686552 | Contact for vacuum interrupter, and vacuum interrupter using same A contact for a vacuum interrupter, includes: 1) a contact plate; and 2) a contact carrier. The contact carrier includes: a first end face which is fitted with the contact plate, and a peripheral face which is formed with a slit portion in such a manner a... | 02/03/2004 |
| 6649855 | Contact arrangement for vacuum interrupter and vacuum interrupter using the contact arrangement In a contact arrangement and a vacuum interrupter using the contact arrangement, the contact arrangement includes: a hollow cylindrical contact carrier on one end surface of which a contact plate is attached; a plurality of first slits formed on the conta... | 11/18/2003 |
| 5804788 | Cylindrical coil and contact support for vacuum interrupter A vacuum interrupter includes a pair of separable electrode assemblies within a vacuum envelope, each electrode assembly including a contact confronting the contact of the other electrode assembly and an electrode coil assembly located behind the contact ... | 09/08/1998 |
| 5793008 | Vacuum interrupter with arc diffusing contact design A vacuum circuit interrupter has a coil for generating an axially oriented magnetic field to maintain an electric arc in a diffuse rather than columnar mode upon opening of the interrupter. At least one of two electrodes having abuttable disc shaped conta... | 08/11/1998 |
| 5777287 | Axial magnetic field coil for vacuum interrupter An electrode assembly for a vacuum interrupter is disclosed having a coil structure that produces an axial magnetic field during operation of the assembly. The electrode coil includes at least one arcuate arm having a radial cross section which provides m... | 07/07/1998 |
| 5726406 | Electrical vacuum switch An elongated vacuum cartridge having a cylindrical enclosure blanked off by two end-plates and housing a stationary arcing contact securedly united to one of the end-plates and a movable arcing contact mounted axially and slidingly inside the cartridge th... | 03/10/1998 |
| 5697150 | Method forming an electric contact in a vacuum circuit breaker According to the present invention there are provided a highly reliable electrode of high strength which undergoes little change even with the lapse of time, and a method for making the same, as well as a vacuum valve using such electrode and a vacuum cir... | 12/16/1997 |
| 5691521 | Vacuum circuit breaker with improved contact assembly A vacuum switch having a fixed side electrode unit and a movable side electrode unit mounted in a vacuum vessel. Each electrode unit includes an arc electrode, an arc electrode supporting member for supporting the arc electrode, a coil electrode and a con... | 11/25/1997 |
| 5691522 | Vacuum interrupter with a single internal assembly for generating an axial magnetic field An axial magnetic field vacuum interrupter includes a field producing structure associated with only one of two opposing electrode assemblies. The field producing structure is characterized in that when the instantaneous peak arc current is Im,... | 11/25/1997 |
| 5646386 | Vacuum interrupter In a vacuum interrupter comprising a disc-shaped stationary electrode and a disc-shaped movable electrode arranged in an evacuated envelope in opposed relationship. A main electrode is in electrical contact with a coil electrode having arm parts and coil ... | 07/08/1997 |
| 5612523 | Vacuum circuit-breaker and electrode assembly therefor and a manufacturing method thereof A portion of a highly conductive metal member is infiltrated in voids of a porous high melting point metal member, and both the metal members are integrally joined to each other. An arc electrode portion 13 is formed of a high melting point area 11 in whi... | 03/18/1997 |
| 5597993 | Vacuum interrupter A vacuum interrupter comprising each electrode assembly of a pair of electrode assemblies having substantially the same structure and arranged in an evacuated envelope in opposed relationship adapted to be connected with or disconnected from each other. E... | 01/28/1997 |
| 5557083 | Vacuum circuit breaker and electric contact According to the present invention there are provided a highly reliable electrode of high strength which undergoes little change even with the lapse of time, and a method for making the same, as well as a vacuum valve using such electrode and a vacuum cir... | 09/17/1996 |
| 5495085 | Vacuum interrupter In a vacuum interrupter comprising a disc-shaped stationary electrode and a disc-shaped movable electrode arranged in an evacuated envelope in opposed relationship, a slot or a salient part is formed on the surface of both the electrodes and thereby a pat... | 02/27/1996 |
| 5387771 | Axial magnetic field high voltage vacuum interrupter An axial magnetic field high voltage vacuum interrupter for interrupting the flow of electrical current in high voltage electrical circuits has a housing with a vacuum therein and two switch contacts disposed within the housing. The switch contacts are mo... | 02/07/1995 |
| 5103069 | Electrode for a vacuum breaker An electrode for a vacuum breaker includes a central flat part having a contact function, peripheral tapered parts having a current-breaking function, and spiral slots formed in the electrode that are inclined with respect to the radial direction. The max... | 04/07/1992 |
| 5055639 | Contact arrangement for a vacuum switch A contact arrangement for a vacuum switch having a switch axis along which switch contacts move. Two identically configured switch contacts are relatively movable opposite to one another along the switch axis. Each switch contact includes: a contact pin f... | 10/08/1991 |
| 4806714 | Electrode structure for vacuum circuit breaker An electrode structure for a vacuum circuit breaker having a pair of separable spiral-formed electrodes includes an electrode rod, a contact fixed to the electrode rod, and a plurality of arc runners extending outward from the electrode rod in the radial ... | 02/21/1989 |
| 4717797 | Contact arrangement for a vacuum switching tube For generating an axial magnetic field, conductor loops are disposed behind the contact members in vacuum switching tubes. The terminals of these conductor loops are supported in axial direction by supporting parts having poor electrical conductivity. In ... | 01/05/1988 |
| 4707577 | Vacuum interrupter An inventive vacuum interrupter has an improved dielectric strength and durability which leads to an improved interruption performance. The interrupter has a vacuum envelope comprising an insulating cylinder, a metal end plate hermetically sealed to one e... | 11/17/1987 |
| 4675483 | Contact arrangement for vacuum switches An electrical contact arrangement for use in a vacuum switch having two coaxially disposed contact as a contact disk which forms one of the contacts, a contact carrier having side walls forming a cylindrical chamber and having slots spiralling therein abo... | 06/23/1987 |
| 4675482 | Switch contact for a vacuum switching tube For generating an axial magnetic field over the contact surfaces in vacuum switching tubes, conductor loops which are constructed in a fashion similar to a spoked wheel are disposed following the contact members. In order to dimension such conductor loops... | 06/23/1987 |
| 4667070 | Contact arrangement for a vacuum switch A contact arrangement for a vacuum switch, which includes a stationary contact member, a movable contact member, and exactly one coil member. The movable contact member has an axis of motion that extends to the stationary contact member. The stationary co... | 05/19/1987 |
| 4661666 | Vacuum interrupter An inventive vacuum interrupter exhibits a high interruption performance. The interrupter includes a metal end plate constituting part of its vacuum envelope, and a coil disposed outside the vacuum envelope and near the metal end plate and generating an a... | 04/28/1987 |
| 4636600 | Vacuum switch provided with horseshoe-shaped elements for generating an axial magnetic field An electrical vacuum switch is provided with two mutually movable contacts of conductive material, mounted on the ends of a fixed or movable contact rod, with a laminated horseshoe-shaped ferromagnetic element being fitted around each contact rod. The mag... | 01/13/1987 |
| 4618750 | Vacuum switching tube with a coil for generating a magnetic field A vacuum switching tube comprises a stationary contact and a movable contact and a two section coil for generating a magnetic field between the contacts. A first coil section is associated with the stationary contact and generates, together with the movab... | 10/21/1986 |
| 4594488 | High-voltage electric switch with arc extinguishing device using self-generation of a quenching pressure A high-voltage electric switch is proposed comprising an arc extinguishing device using self-generation of a quenching fluid pressure. Inside a container there is formed a compression chamber surrounded by fixed main contacts cooperating with mobile main ... | 06/10/1986 |
| 4473731 | Vacuum circuit interrupter The disclosed electrode assembly used with vacuum circuit interrupters has a disc-shaped electrode including four coil sections defined by four short radial slots extending radially inward at equal angular intervals from its periphery, four circumferentia... | 09/25/1984 |
| 4471184 | Vacuum interrupter A vacuum interrupter has a capacity of breaking high voltage and large electric current, and excellent anti-welding characteristics, and prevents generation of harmful surges by current chopping and reignitions, and particularly prevents surges by multi-r... | 09/11/1984 |
| 4451813 | Vacuum fuse having magnetic flux generating means for moving arc A vacuum fuse includes a pair of metallic spiral elements of different wrapping directions mounted on inner end portions of axially aligned conductor rods. The radial inner ends of spiral elements are electrically connected to respective conductor rods an... | 05/29/1984 |
| 4445015 | Vacuum switching tube with a ring to generate an axial magnetic field A vacuum switching tube with a ring to generate an axial magnetic field. A vacuum switching tube is provided with a switching device member 12, which includes a conventional switching device 14 and an immediately adjacent axial field coil, which essentially co... | 04/24/1984 |
| 4438307 | Electric vacuum switch The invention relates to a vacuum switch with cup-shaped switch contact components having an obliquely slit contact carrier and mounted unslit contact ring. The contact carrier consists of copper with or without additional chromium and the contact ring co... | 03/20/1984 |
