With Flexible Vane Or Plate Patents (Class 337/391)
-
Patent number: 7760066Abstract: In a temperature switch, a cut-out portion of the substrate is formed of a first cut-out portion and a second cut-out portion which are made from the side part toward the center. At a fixation part of a movable plate in the temperature switch, a pawl part and an elastic locking part having an L-shaped cross section are formed adjacent to the pawl part on the upstream side in the sliding direction. When the pawl part is fitted in the second cut-out portion, a tip of the elastic locking part abuts an end portion-top surface of the substrate and the elastic locking part reversibly warps upwardly.Type: GrantFiled: August 7, 2006Date of Patent: July 20, 2010Assignee: Uchiya Thermostat Co. Ltd.Inventor: Hideaki Takeda
-
Patent number: 7659805Abstract: A thermostat has a movable place where a spring point and a securing plate portion are integrally formed. The spring point is provided with a movable contact at a position that faces a fixed contact, a protrusion with which a bimetal that counter turns comes into contact, a hole for inserting the head of a bimetal holding point, and a protrusion for holding the bimetal, and the spring point is valley-folded at a folding point so as to face the securing plate portion. The securing plate portion is integrally constituted of a terminal point connected to one external terminal, a fixation point for securing an insulating plate, which has the fixed contact in a manner to hold the plate from both sides, and a holding point folded and set up, penetrating a central hole of the bimetal to hold the bimetal.Type: GrantFiled: January 26, 2006Date of Patent: February 9, 2010Assignee: Uchiya Thermostat Co., Ltd.Inventor: Hideaki Takeda
-
Patent number: 5612662Abstract: A thermal fuse includes a leaf spring formed of a narrow sheet metal strip. The leaf spring has ends and at least two contact points at the ends. At least one of the contact points is a soldering point for connection with corresponding circuit contacts of a circuit substrate. The leaf spring has at least one spring arm interconnecting the contact points. The spring arm has a roof-shaped deformation in the vicinity of one contact point. The spring arm has a flat and elongated spring segment with a transition adjoining the deformation and a transition extending to the other contact point. The spring segment is bending resistant in the vicinities of the transitions, for transforming a compressive deformation applied to the roof-shaped deformation into a lateral movement and into an arching of the spring segment, with both ends of the leaf spring attached to the circuit substrate without pretensioning.Type: GrantFiled: February 7, 1995Date of Patent: March 18, 1997Assignee: Siemens AktiengesellschaftInventors: Karl G. Drekmeier, Gerhard Winter
-
Patent number: 5565666Abstract: A switch for interrupting an electrical circuit in response to a mechanical interaction, such as an overpressure or underpressure condition. The switch includes an actuation arm electrically connected to a common terminal. The actuation arm is moveable between a first position and a second position in response to the mechanical condition. The switch further includes an M-blade operatively connected to the actuation arm. The M-blade levers from a first configuration to a second configuration when the actuation arm moves from the first position to the second position. The M-blade completes the electrical circuit in the first configuration and interrupts the electrical circuit in the second configuration. The switch further includes a reset actuator disposed to engage the M-blade in response to a reset actuation. The M-blade levers from the second configuration to the first configuration when the reset actuator engages the M-blade and the actuation arm is not in the second position.Type: GrantFiled: March 31, 1995Date of Patent: October 15, 1996Assignee: Johnson Service CompanyInventor: Thomas O. Kautz
-
Patent number: 5077537Abstract: A probe thermostat is shown having a single, stamped metal channel having a first coefficient of expansion coupled to a rod having a second, different, coefficient of expansion. An electrically insulating block is mounted on the channel which in turn cantilever mounts a pair of electrically conductive arms spaced one over the other with electrical contacts disposed on the arms in facing relation to one another. A molded plastic adjustment cam snaps into slots formed in the channel to adjust the position of the lower arm. A hinge formed in the channel and connected to the rod causes movement of the top arm as the temperature of the thermostat changes to cause the contacts to move into and out of engagement with each other.Type: GrantFiled: December 14, 1990Date of Patent: December 31, 1991Assignee: Texas Instruments IncorporatedInventor: Douglas J. Slack
-
Patent number: 4754253Abstract: A thermostatic switch is shown having a body supporting a temperature sensing probe formed of a rod of one thermal coefficient of expansion connected to a channel of a different thermal coefficient of expansion. The difference in expansion between the rod channel is translated through a hinge to an overbalance type switch mounted on the body. The temperature at which the switch actuates is adjustable through an element movable toward and away from the switch by a cam mechanism as well as an independent threaded adjustment. The switch is shown in one embodiment as having an integral movable switch arm and loading spring and in a second embodiment as having a discrete movable switch arm and a discrete loading spring.Type: GrantFiled: October 29, 1986Date of Patent: June 28, 1988Assignee: Texas Instruments IncorporatedInventors: Douglas J. Slack, Wayne S. Dogan
-
Patent number: 4001747Abstract: An improved self-biased vane structure normally buckled to an abnormal posture by a thermally expansible pull member comprises a piece of resilient sheet metal deformed downwardly relative to a horizontal reference plane between pairs of divergent creases which extend to opposite lateral edges of the piece from respective apex points spaced apart on the longitudinal center line thereof. The vane thus has a pair of triangular end panels between which there are oppositely sloped side or wing panels, and has a transversely, elastically bowed portion between the apex points. The bowed central portion may be creased longitudinally and/or formed with a central opening to give it selected buckling properties. The pull member extends centrally from end to end over the convex side of the vane; when it is heated, as by an electric current passing through it and the vane, the vane snaps toward its natural posture and brings the pull member into cooling contact with its central portion and its end panels.Type: GrantFiled: June 23, 1975Date of Patent: January 4, 1977Assignee: Ideal CorporationInventors: Ricardo Limeres, Alfred Osborn