Topic
Solenoid
About: Solenoid is a research topic. Over the lifetime, 19278 publications have been published within this topic receiving 114721 citations.
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Patent•
19 Apr 2002
TL;DR: In this article, a child safety gate includes a flexible barrier that is retractable into a housing and extendable across a passageway to inhibit passage by a child, and an electrically operable extension lock solenoid inhibits barrier extension.
Abstract: A child safety gate includes a flexible barrier that is retractable into a housing and extendable across a passageway to inhibit passage by a child. An electrically operable extension lock solenoid inhibits barrier extension until activated by a parent. The gate includes a motion sensor, a night light, a child monitor and an interactive audio-visual display.
43 citations
TL;DR: In this paper, the authors present the goal and status of the high field High Temperature Superconductor (HTS) solenoid program funded through a series of SBIRs.
Abstract: This paper presents the goal and status of the high field High Temperature Superconductor (HTS) solenoid program funded through a series of SBIRs. The target of this R&D program is to build HTS coils that are capable of producing fields greater than 20 T when tested alone and approaching 40 T when tested in a background field magnet. The solenoid will be made with second generation (2G) high engineering current density HTS tape. To date, 17 HTS pancake coils have been built and tested in the temperature range from 20 K to 80 K. Quench protection, high stresses and minimization of degradation of conductor are some of the major challenges associated with this program.
43 citations
Patent•
27 Nov 1985
TL;DR: In this article, a solenoid activated locking system for the trunk and the hood of a vehicle is presented, which prevents manual release of the trunk or hood lids to prevent access to the truck or engine compartment to someone who has obtained unauthorized access to vehicle interior.
Abstract: A solenoid activated locking system primarily for hood and trunk manual release systems for vehicles. The solenoid is connected to a cable tied to the latch of a conventional hood or trunk release system. Unless activated, the solenoid prevents manual release of the trunk or hood lids to prevent access to the truck or engine compartment to someone who has obtained unauthorized access to the vehicle interior. The solenoid is automatically actuated for a preselected period of time whenever the ignition is turned on or off or when a reset switch is closed for more than a minimum and less than a maximum period of time. In addition, the solenoid is activated automatically during closure of the hood or trunk lid to permit secure engagement of the corresponding latch mechanism. An emergency release cable, hidden in an obscure location external of the vehicle, is provided for enabling manual release of the solenoid in the event of vehicle battery failure or other otherwise disabling event.
43 citations
Patent•
10 Mar 1992TL;DR: In this article, a magnetic field generating apparatus comprises a solenoid arranged to generate a steady magnetic field gradient along its axis, such that in use contours of constant field are formed within the Solenoid.
Abstract: Magnetic field generating apparatus comprises a solenoid arranged to generate a steady magnetic field gradient along its axis. The arrangement is such that in use contours of constant field are formed within the solenoid. The contours extend generally radially outwardly from the axis of the solenoid and asymmetrically with respect to the centre plane of the solenoid orthogonal to its axis. Regions of substantially homogeneous magnetic field suitable for performing an NMR experiment exist about each contour, the regions having substantially constant thickness along the contours.
43 citations
Patent•
08 Sep 1980
TL;DR: In this paper, a free floating piston located in the chamber is moved along the length of the chamber with a solenoid to pump blood into and out of opposite ends of the cylinder.
Abstract: A pump and method for moving a fluid, as blood, having a body and end members forming a cylindrical chamber. A free floating piston located in the chamber is moved along the length of the chamber with a solenoid to pump blood into and out of opposite ends of the chamber. The end members containing inlet and outlet valves and sleeves are adapted to attach to veins or tubes to carry the blood to and from the pump. When electrical power is applied to the solenoid, a magnetic force operates to move the piston in the chamber, thereby pumping blood into and out of the chamber through the valves in the opposite end members.
43 citations