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Class 335/61 - With pneumatic delay means (e.g., dashpot, etc.)


Subclass of Class 335 - Electricity: magnetically operated switches, magnets, and electromagnets
Definition: Subject matter wherein the delay structure comprises pneumatic
No. of patents: 18
Last issue date: 05/06/2008


NumberTitleIssue Date
7369639Method and tomography unit for taking tomographic pictures of a beating heart
A method and a tomography unit are disclosed for taking tomographic pictures of a patient's beating heart, in particular X-ray CT pictures. In such a method and tomography unit, only detector data or image data of a portion of the cardiac phase from one or more hear...
05/06/2008
5844456Electromagnetic relay
An electromagnetic relay is provided with an electromagnet system with a U-shaped core yoke and an essentially flat armature, which form a working air gap on a longitudinal side underneath the coil winding. One yoke limb lies immediately on the coil windi...
12/01/1998
5781089Electromagnetic relay
An electromagnetic relay includes a winding, a magnetic core disposed within the winding, and an armature mounted for movement at a first end of the winding. At least one movable circuit contact is operably associated with the armature and movable with re...
07/14/1998
4910484Electromagnetic relay having silencing effect
A relay comprises a yoke, an armature, a movable contact spring having a movable contact, at least one stationary contact mounted thereon, and a core. An air damper is mounted on a free end of the movable spring, or on a free end of the armature, to reduc...
03/20/1990
4553117Pneumatic timing attachment for an electromagnetic device
A timing attachment for a relay which may be programmed to provide an ON DELAY or an OFF DELAY operation of a pair of switches with each switch having either normally open or normally closed contacts. The attachments includes a bellcrank having a lever ar...
11/12/1985
4535310Pneumatic timing attachment for an electromagnetic device
A timing attachment for a relay that is programmable to provide an ON Delay or an OFF Delay operation of a pair of switches having either normally open or normally closed contacts. The attachment includes a housing that is mountable in either of two posit...
08/13/1985
4504807High inrush current circuit breaker
A magnetic circuit breaker has a U-shaped magnetizable plate between the solenoid coil and the plastic spool flange located below the pole piece that is engaged by the armature to trip the breaker. This U-shaped disc diverts some of the instantaneous flux...
03/12/1985
4480158Time delay switching device
A time-delay switching device which includes a pneumatic timer adapted to be triggered by an electromagnet. The switching device includes at least two switches, with each switch including a movable switching element for controlling switching operations in...
10/30/1984
4431030Fluid timing element, especially a pneumatic timing element for use in household appliances, such as electric toasters
A fluid timing element, comprising a nozzle, a needle being at least partly insertable into the nozzle forming a choke gap therebetween, at least one of the nozzle and the needle being axially tapered, the nozzle and the needle being axially movable relat...
02/14/1984
4378541Time delay switch
In a time delay switch comprising: a delay action means comprising an oil dash pot (9) containing a piston (21) of magnetic-flux-responsive substance disposed in an oil-filled cylinder, a magnetic circuit containing a permanent magnet (18) mechanically linked ...
03/29/1983
4315231High-speed circuit breaker
High-speed breaker for an electric circuit, including a fixed contact, movable contact and a movable holder for the movable contact. An actuating rod is reciprocally movable toward and away from the fixed contact between first and second positions. A head...
02/09/1982
4303147Adjustment for pneumatic timer
An adjustment mechanism for a pneumatic timing device, that operates relay contacts with a time delay, in which a needle valve is aligned longitudinally with a bellows and the needle valve is operated by a rotatable adjustment knob that operates a visual ...
12/01/1981
4256021Pneumatic timer with eccentrically disposed valve needle
A pneumatic timer for a timing relay is regulated by the axial movement of a valve needle through a chamber formed in the body of the timer. The valve needle forms a tapered valve stem along its longitudinal axis and the valve stem is eccentrically dispos...
03/17/1981
4179676Time delay relay movement
An improved movement for a time delay relay cooperates with an electromagnet and a timer to provide either "On Delay" or "Off Delay" operation of the relay contacts. The movement has an elongated operating plunger that is movable in forward and backward s...
12/18/1979
4104602Pneumatic timer
A pneumatic timer is disclosed which includes a base plate, a vertical frame member consisting of a frame perpendicular to the base plate and a horizontal frame. The horizontal frame portion includes a central opening, the vertical frame portion includes ...
08/01/1978
4038619Pneumatic timer
A pneumatic timer translating the external force of an electromagnetic relay or the like into rotational movement of a camshaft to actuate a set of switch contacts. The rotation of the camshaft is retarded in one direction by an adjustable pneumatic one-w...
07/26/1977
3944955Solenoid switches
A solenoid switch, particularly but not exclusively for use in a starter motor supply circuit includes a solenoid coil and at least one fixed contact. An armature is movable relative to the coil in response to energisation of the coil and carries a movabl...
03/16/1976
3932826Dashpot solenoid
A dashpot solenoid is provided having a thin-walled well with a support ring around an accurately sized and shaped slightly reduced mouth portion and an adjustable air metering orifice at the bottom or opposite end. A plunger coated with a polyfluoro hydr...
01/13/1976
 
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