Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 7007924 | One-piece coil conduit A solenoid assembly for a valve includes a unitary, one-piece housing comprised of encapsulant. An electromagnetic device is completely encompassed by and embedded in the encapsulant. The device includes i) a bobbin and coil subassembly; ii) a terminal electrically ... | 03/07/2006 |
| 6515565 | Electromagnetic device equipped with solenoid, automatic player using the same and automatic player keyboard musical instrument An electromagnetic device has a bobbin with collars projecting from a cylindrical body, L-shaped conductive pins partially embedded in the collar so that first end portions and second end portions respectively project from the side surface and the lower s... | 02/04/2003 |
| 5966062 | Magnetopermanent plate An improved magnetopermanent plate, constituted by a metallic body with high magnetic permeability, in the active plane of which there are provided hollow seats for accommodating corresponding coils composed of turns of electrically conducting wire covere... | 10/12/1999 |
| 5497136 | Locating ring for encapsulating a coil A locating ring for positioning and supporting an electric coil within a mold for encapsulation of the coil. The locating ring comprises an annular body defining a central axis and a plurality of tabs extending generally axially from the annular body. The... | 03/05/1996 |
| 5220301 | Solenoid winding case and protective overmold and method of making A solenoid winding and housing for use with an armature actuated fuel poppet valve and the process of applying interior and external annular plastic shields on and in the housing to seal against moisture and fuel and to provide joint and weld protection. ... | 06/15/1993 |
| 4973929 | Safety device for a switching appliance formed by assembling together several removable modular elements The invention provides a safety device for switching appliances formed by the assembly of at least two removable modular elements, namely a switching module and an indirect switching control module which is able to pass from a tripped condition to a set c... | 11/27/1990 |
| 4720078 | Solenoid valve A solenoid valve includes a non-magnetic bobbin accommodating stationary and movable cores in a central bore, a coil wound on the bobbin, a magnetic yoke arranged on the outer portion of the coil and secured to the bobbin, a fluid passageway opened and cl... | 01/19/1988 |
| 4622532 | Hourglass magnet The invention is intended for incorporation into an enclosure confining fluid about an electromagnet of the type having a core, at least one coil disposed about the core and a current source coupled to the coil to establish a magnetic field. According to ... | 11/11/1986 |
| 4045756 | Segmented expansion absorber for lifting magnet A lifting magnet has lengths of sealed plastic tubing positioned circumferentially of its coil prior to its encapsulation in a magnet case. The tubing is hermetically sealed every few inches along its entire length in order to divide the tubing into indiv... | 08/30/1977 |
