Source: https://patents.justia.com/patent/20100035195
Timestamp: 2020-07-10 10:40:38
Document Index: 668193545

Matched Legal Cases: ['art 17', 'art 17', 'art 17', 'art 17', 'art 19', 'art 19', 'art 19']

US Patent Application for IGNITION SWITCH ASSEMBLY FOR A GAS VALVE Patent Application (Application #20100035195 issued February 11, 2010) - Justia Patents Search
Justia Patents Switch Or Electrode Of Igniter Moved By Valve Element Or OperatorUS Patent Application for IGNITION SWITCH ASSEMBLY FOR A GAS VALVE Patent Application (Application #20100035195)
IGNITION SWITCH ASSEMBLY FOR A GAS VALVE
Feb 6, 2009 - COPRECITEC, S.L.
FIG. 9 is a perspective view of an element coupling the ignition switch to the gas tap shown in FIG. 1
The cam 8 also includes a protrusion or stop 12 that extends radially in relation to the rotatory shaft 3 or peripheral surface of the cam, and which is configured to move the mobile contact 6 towards the fixed contact 5. In one embodiment, the protrusion/stop 12 is delimited by a first surface 12a that extends in a radial direction and a second curved surface 12b continuous to the first surface 12a.
The cam 8 comprises a guide/guide means 9 that guides the lateral movement of the cam 8 in relation to the rotatory shaft 3 or coupling element 15. The guide 9 comprises a projection 10 that extends in the axial direction of the rotatory shaft 3 or coupling element 15, and the base 11 of the coupling element 15 includes a closed and preferably curved groove 7 in which the projection 10 is housed, the projection 10 being guided as it moves in the groove 7 when the rotatory shaft 3 or coupling element 15 is rotated.
In one embodiment, the fixed contact 5 comprises a fixed metallic member or plate 17 that includes a first end 17a that is inserted in the casing 20, an intermediate part 17b that is preferably disposed substantially orthogonal to the rotatory shaft 3 and which includes a contact area 18 that may project out in relation to the intermediate part 17b, and a second end 17c that preferably forms a substantially 45° angle in relation to the intermediate part 17b and which acts as a stop against a support 13 that projects out of the casing 20 in the axial direction. In the initial closed position of the gas tap, shown in FIG. 3, the intermediate part 17b and the contact area 18 are preferably disposed substantially orthogonal to the rotatory shaft 3.
In one embodiment, the mobile contact 6 comprise a flexible metallic member or plate 19 that includes a first end 19a that is preferably inserted substantially orthogonal in relation to the rotatory shaft 3 in the casing 20, an intermediate part 19b that forms an angle in relation to the first end 19a, and a second end 19c that is preferably substantially orthogonal to the intermediate part 19b.
FIG. 3 shows the gas tap 1 closed, with the projection 10 of the cam 8 positioned on a first end 7a of the groove 7 in the base 11 of coupling element 15. Starting from this position, when the user turns the control knob 14 in a counter-clockwise direction, the first surface 12a of the protrusion/stop 12 comes into contact with the intermediate part 19b of the flexible metallic member 19, thereby moving it until the second end 19c of the flexible metallic member 19 comes into contact with the contact area 18 of the fixed metallic member 17, thereby enabling the generation of an ignition. At the same time, the projection 10 of the cam 8 is guidely displaced along the groove 7 to a second end 7b, and the cam 8 moves in relation to the rotatory shaft 3 or coupling means 15 all the way along the hole 16, as shown in FIG. 4.
Starting from the position shown in FIG. 4, if the user continues turning the control knob 14 in a counter-clockwise direction, the flexible metallic member 19 separates from the fixed metallic member 17 and the projection 10 of the cam 8 is guidely displaced along the groove 7 positioning itself again on the first end 7a of the groove 7, as shown in FIG. 5.
FIGS. 6 and 7 show how the gas tap 1 works when the user turns the control knob 14 in a clockwise direction in the direction of closure of the gas tap 1. Starting from the position shown in FIG. 5, when the user turns the control knob 14 in a clockwise direction, the second surface 12b of the protrusion/stop 12 of the cam 8 comes into contact with the second end 19c of the flexible metallic member 19, thereby moving it towards the fixed metallic member 17, without losing contact with the second surface 12b. At the same time, the projection 10 of the cam 8 remains fixed in relation to the rotatory shaft 3 or coupling element 15 and as a result, even though the flexible metallic member 19 moves towards the fixed metallic member 17, the electrical contact between mobile contact 6 and fixed contact 5 is not achieved, as shown in FIG. 7.
a coupling element connectable to the rotary shaft, the ignition switch assembly having a fixed contact, a mobile contact, and a cam coupled to the coupling element which is configured to move the mobile contact relative to the fixed contact, the cam having a guide moveable within a groove of the switch assembly that controls the lateral displacement of the cam in relation to the coupling element, the lateral displacement of the cam controlled such that when the coupling element is rotated in a first direction from a first initial position, the mobile contact is moveable into electrically contact with the fixed contact, whereas when the coupling element is rotated in a second direction opposite the first direction the lateral displacement of the cam is controlled to prevent electrical contact between the mobile and fixed contacts.
an ignition switch assembly coupled to the rotary shaft, the ignition switch having a fixed contact, a mobile contact, and a cam coupled to the rotary shaft which is configured to move the mobile contact relative to the fixed contact, the cam having a guide moveable within a groove of the switch assembly that controls the lateral displacement of the cam in relation to the rotary shaft, the lateral displacement of the cam controlled such that when the rotary shaft is rotated in a first direction from an initial closed position of the gas valve, the mobile contact is moveable into electrically contact with the fixed contact, whereas when the rotary shaft is rotated in a second direction opposite the first direction the lateral displacement of the cam is controlled to prevent electrical contact between the mobile and fixed contacts.
Publication number: 20100035195
Patent Grant number: 7902476
Applicant: COPRECITEC, S.L. (Aretxabaleta (Gipuzkoa))
Inventors: Felix Querejeta Andueza (Vitoria - Gasteiz), Javier Echenagusia Saez de Zaitegui (Aretxabaleta (Gipuzkoa))
Application Number: 12/367,386
Current U.S. Class: Switch Or Electrode Of Igniter Moved By Valve Element Or Operator (431/256)
International Classification: F23Q 7/12 (20060101);