US2878340A - Snap acting flasher switch - Google Patents
Snap acting flasher switch Download PDFInfo
- Publication number
- US2878340A US2878340A US595889A US59588956A US2878340A US 2878340 A US2878340 A US 2878340A US 595889 A US595889 A US 595889A US 59588956 A US59588956 A US 59588956A US 2878340 A US2878340 A US 2878340A
- Authority
- US
- United States
- Prior art keywords
- vane
- base
- contact
- terminal
- heater ribbon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 229910001252 Pd alloy Inorganic materials 0.000 description 2
- 229910001260 Pt alloy Inorganic materials 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 239000010960 cold rolled steel Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
- H01R13/713—Structural association with built-in electrical component with built-in switch the switch being a safety switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/46—Thermally-sensitive members actuated due to expansion or contraction of a solid
- H01H37/50—Thermally-sensitive members actuated due to expansion or contraction of a solid with extensible wires under tension
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H61/00—Electrothermal relays
- H01H61/06—Self-interrupters, i.e. with periodic or other repetitive opening and closing of contacts
- H01H61/066—Self-interrupters, i.e. with periodic or other repetitive opening and closing of contacts making use of an extensible wire, rod or strips
Definitions
- Fig. 1 is a perspective view of the snap acting electric flasher switch of this invention.
- Fig. 2 is an enlarged vertical sectional view through the snap acting electric flasher switch taken substantially along the line 22 of Fig. l and 2-2 of Fig. 4.
- Fig. 3 is a vertical sectional view taken substantially along the line 33 of Fig. 2.
- Fig. 4 is a horizontal sectional view taken substantially along the line 44 of Fig. 2.
- Fig. 5 is a horizontal sectional view taken substantially along the line 5-5 of Fig. 2.
- Fig. 6 is a vertical sectional view taken substantially along the line 6-6 of Fig. 4.
- Fig. 7 is an exploded perspective view illustrating various of the parts forming the snap acting electric flasher switch of this invention.
- Fig. 8 is an enlarged plan view of the resilient snap acting vane.
- Fig. 9 is a side elevational view of the snap acting vane illustrating its prestressed condition.
- Fig. 10 is a side elevational view similar to Fig. 9 but illustrating the heater ribbon applied to and stressing the resilient snap acting vane and illustrating the contacts in closed position.
- Fig. 11 is a view similar to Fig. 10 but illustrating the contacts in open position.
- Fig. 12 is a wiring diagram illustrating the manner in which the snap acting electric flasher switch of this invention is utilized in a directional turn signal system for automotive vehicles.
- the snap acting electric flasher switch of this invention is generally designated at 10 and it includes an insulating base 11 formed of suitable electrical insulating material such as Bakelite or the like.
- the outer face of the base 11 is provided with a pair of recesses 12 and 15, the recess 12 communicating with a slot 13 extending through 37, in the event 2,878,346 Patented Mar. 17, 1959 the base 11 and the recess 15 communicating with a s'lci 16 extending through the base 11.
- the inner or under face of the base 11 is provided with a pair of recesses 14 communicating with the slot 13 and a pair of recesses 17 communicating with the slot 16.
- a central hole 18 is arranged between the pair of recesses 12 and 15 and extends through the base 11, the inner face of the base 11 being provided with a recess 19 communicating with the hole 18.
- the side faces of the base 11 are provided with a peripheral shoulder 20 and two of the opposed side faces are provided with recesses 21.
- the base 11 with its various recesses, slots, hole, and shoulder, may be formed by any suitable molding process.
- the base 11 carries a substantially L-shaped supporting terminal 23 having one leg 24 extending through the slot 13 and having another leg 25 received in the recess 12 in the outer face of the base.
- the leg 24 is provided with a pair of lugs 26 which are bent over into the recesses 14 to assist in securing the supporting terminal 23 in the base.
- the leg 25 of the supporting terminal is provided with a substantially semicircular opening 27 which is substantially concentric with the hole 18 in the base.
- the leg 25 of the supporting terminal is also provided with an outwardly extending mounting ear 28 and an outwardly extending stop ear 29.
- the leg 24 is also provided with a pair of lugs 30 which operate to facilitate the making of electrical connections thereto.
- the supporting terminal may be formed of cold rolled steel or the like which is preferably nickel plated, and may be fabricated by simple punch press die operations.
- the insulating base 11 also carries a substantially L- shaped contact terminal 32 having one leg 33 extending through the slot 16 in the base and having another leg 34 received within the recess 15 in the outer face of the base.
- the leg 33 is provided with a pair of lugs 35 which are bent over into the recesses 17 in the inner face of the base 11 to assist in securing the contact terminal 32 in place on the base.
- the leg 34 of the contact terminal is also provided with a substantially semi-circular opening 36 which is substantially concentric with the hole 18 in the base 11.
- the leg 34 of the contact terminal is provided with an outwardly extending car 37 which carries a fixed contact 38 and it is here noted that the car 37 extends from the leg 34 at a point remote from the leg 33 so that the possibility of distortion of the ear of distortion of the leg 33, is minimized.
- the leg 33 is also provided with a pair of lugs 39 to facilitate making electrical connections to the contact terminal 32.
- the contact terminal may be made from cold rolled steel or the like which is preferably nickel plated and may be fabricated by usual punch press die operations.
- the fixed contact 38 may be formed of any suitable contact material such as a platinum alloy or a palladium alloy or the like, and is preferably secured to the ear 37 by spot welding.
- An insulating washer 41 formed from suitable insulating material such as laminated asbestos paper or the like, overlies the legs 25 and 34 of the mounting terminal and contact terminal, and a rivet 42 extends through the washer 41, between the legs 25 and 34, and through the central hole 18 in the base 11, into the recess 19 where the rivet is peened.
- the rivet 42 and insulating washer 41 operate firmly to secure the supporting terminal 23 and the contact terminal 32 on the insulating base 11 to provide an extremely rigid and rugged construction.
- the rivet 42 may be made from any suitable material such as soft steel, which is preferably nickel plated.
- the semi-circular recesses 27 and 36 in the terminals 23 and 32 are spaced from the rivet 42 and operate in conjunction with the insulating washer 41 to eliminate any possible short-circuiting between the terminals 23 and 32.
- the snap-acting electric fiasher switch of this invention also includes an elongated substantially rectangular and flat resilient vane 45 which is preferably made from spring steel, such as blue tempered spring steel, or the like.
- One end of the resilient vane is provided with an inwardly extending shelf '46 extending thereacross, and the other end of the resilient vane is provided with an outwardly extending tab 47 extending thereacross.
- the end of the resilient vane provided with the shelf 46 is also provided with an outwardly extending tab 48, this tab not extending across the entire end of the vane.
- the resilient vane 45 is provided with a prestressed area 50, which is bounded by an impression 49 forced in the vane from the outer face thereof near the end of the vane having the shelf 46.
- the impression 49 may be forced in the vane by a suitable punch having a corresponding configuration.
- the punch displaces metal directly below and adjacent to the punch so as to cause the center portion of the vane to have a greater effective length than the adjacent side portions thereof.
- the formation of the prestressed area 5% and the impression 49 operates to prestress the resilient vane 45 to urge the free end 47 thereof outwardly away from the base, as shown more particularly in Fig. 9.
- the impression 49 may have various configurations and it may completely enclose the prestressed area 50 if maximum prestressing is desired.
- the impression 49 is open ended, as indicated at 51 in Fig.
- the impression 49 substantially C-shaped with the opening 51 in the impression 49 facing toward a long side edge of the vane. Also, preferably, the width of the impression 49 is reduced at a point facing the other long side edge of the vane as indicated at 52.
- the vane has a thickness of substantially .086 inch, an overall length of substantially .844- inch, an overall width of substantially .375 inch, a C-shaped impression having an outside diameter of substantially .200 inch, and an inside diameter of substantially .160 inch, with the opening at the ends of the impression being substantially 125 inch, and wherein the free end of the vane is raised substantially .035 inch by the prestressing operation, and wherein the distance between the free end of the vane and the impression 49 is substantially .421 inch.
- a thermally expansible and contractible heater ribbon 55 is arranged in spaced relation along the inner face of the vane 45 and it is secured under tension at its ends to the ends of the resilient vane, and toward this end one end of the heater ribbon 55 is spot welded to the tab 47 on the free end of the vane, and the other end is spot welded to the tab 48 on the supported end of the vane.
- the heater ribbon is made from suitable electrically resistive and thermally expansi-ble and contractible material such as nickel chrome alloy, and for use with the above-described vane dimensions the heater ribbon is substantially .003 inch thick and substantially .032 inch wide.
- a movable contact 56 is secured to the heater ribbon 55 adjacent its center 'by means of spot welding or the like.
- This movable contact 56 may also be formed from suitable material such as a platinum alloy or palladium alloy.
- suitable material such as a platinum alloy or palladium alloy.
- the movable contact 56 carried by the heater ribbon 55 normally engages the stationary contact 38 carried by the contact ear 37 of the contact terminal 32.
- the shelf 46 and the tab 47, extending across the ends of the vane 45, operate to provide transverse stability to the vane.
- the vane 45 When the heater ribbon 55 is secured under tension to the ends of the resilient vane 45, the vane 45 is stressed against the force of the prestressing occasioned by the impression 49 to hold the free end 47 of the vane 45 inwardly toward the base and to cause the bounded prestressed area 50 of the vane to dimple outwardly when the heater ribbon is relatively cool. Under these conditions, the movable contact 56 engages the fixed contact 38 as illustrated in Fig. 10. There, the free end 47 of the vane 45 is held inwardly by the heater ribbon 55, the bounded area 50 is dimpled outwardly, and the movable contact 56 is engaging the fixed contact 38. There is under these conditions, appreciable contact pressure, as is indicated by the bowing of the heater ribbon 55.
- Breaking of this circuit causes the heater ribbon 55 to cool and to gradually contract to cause the heater ribbon to act against the prestressing force of the vane to dimple the bounded prestressed area 5t) of the vane outwardly when the heater ribbon becomes relatively cool.
- the free end of the vane is snapped inwardly toward the base, and the movable contact 56 is snapped into engagement with the fixed contact 38 to again complete the electric circuit.
- the two positions of the vane and the contacts are illustrated in Figs. 10 and 11, Fig. 10 showing the contacts closed and Fig, 11 showing the contacts'open. With the relative dimensions described above, the vane snaps from the closed position to the open position under normal conditions with about 3.8 amps. at 12.8 volts.
- the contact closed periods are substantially equal to the contact open periods, each period being about .40 second.
- the electric flasher switch in snapping between its two positions produces an audible sound, which has the advantage of audibly signalling the operation thereof, this being desirable in automotive turn signal systems.
- the character and amplitude of the noise of the signal is determined by the amount of prestressing and can be regulated by the configurations and dimensions of the prestressing impression.
- the resilient blade 45 and its associated parts are enclosed by a cover 6% which engages the shoulder 20 on the base 11, and which is provided with a pair of detents 61 which are-received in the pair of slots 21 in the base 11 for securing the cover in place upon the base.
- the snap acting electric flasher switch of this invention isparticularly adaptable for use in directional control systems for automotive vehicles and Fig. 12 is a wiring diagram illustrating such use.
- the resilient blade 45 is connected through the supporting terminal 23 to one side of a voltage source 65 such as a 12 volt battery of an automotive vehicle, the other side of the voltage source being connected to ground, as indicated at 66.
- the fixed contact 38 is connected through the contact terminal 32 to the center pole 67 of a directional switch.
- This center pole 67 is adapted to engage a contact 68 when left turns are to be indicated and to engage a contact 69 when right turns are to be indicated.
- the left turn contact is connected to the back lamp 70, the front lamp 71, and the pilot lamp 72, for indicating left turns, these lamps in turn being connected to ground 66.
- the right turn contact 69 is connected to a back lamp 73, a front lamp 74 and a pilot lamp 75 for indicating right turns, these lamps also being connected to ground 66.
- the resistance in the heater wire 55 is so selected with respect to the voltage source and the resistances of the indicating lamps, that flashing will occur so long as the lamps are all operative. If, however, either lamp 70 or 71 should become inoperative, there would be insuflicient current flow through the heater ribbon 55 to heat the same sufliciently to open the circuit so that the remaining operative lamps 70 or 71 and 72 would burn steady to cause the pilot lamp 72 to indicate failure of the inoperative lamp.
- a snap acting electric flasher switch comprising, an insulating base, a supporting terminal carried by the base, a contact terminal carried by the base and having a fixed contact thereon, an elongated substantially rectangular and flat resilient vane secured at one end to the supporting terminal and overlying the fixed contact on the contact terminal, said resilient vane having a prestressed area bounded by an impression forced in the vane from the outer face thereof and near the supported end thereof and the vane being prestressed by said impression resiliently to urge the free end of the vane outwardly from the base, a thermally expansible and contractible heater ribbon arranged in spaced relation along the inner face of the vane and secured under tension at its ends to the ends of the vane and stressing the vane against the force of the prestressing thereof to hold the free end of the vane inwardly toward the base and to cause the bounded prestressed area of the vane to dimple outwardly when the heater ribbon is relatively cool, a movable contact secured to the heater ribbon adjacent the center thereof and normally
- a snap acting electric flasher switch comprising,
- an insulating base asupporting terminal carried by the base, a contact terminal carried by the base and having a fixed contact thereon
- an elongated substantially rectangular and flat resilient vane having an inwardly extending shelf extending across one end of the vane and secured at the shelf to the supporting terminal and overlying the fixed contact on the contact terminal, said resilient vane having a prestressed area bounded by an impression forced in the vane from the outer face thereof and near the supported end thereof and the vane being prestressed by said impression resiliently to urge the free end of the vane outwardly from the base
- a thermally expansible and contractible heater ribbon arranged in spaced relation along the inner face of the vane and secured under tension at its ends to the shelf and the free end of the vane and stressing the vane against the force of the presetressing thereof to hold the free end of the vane inwardly toward the base and to cause the bounded prestressed area of the vane to dimple outwardly when the heater ribbon is relatively cool
- a snap acting electric flasher switch comprising, an insulating base, a supporting terminal carried by the base, a contact terminal carried by the base and having a fixed contact thereon, an elongated substantially rectangular and flat resilient vane having an outwardly extending tab on each end of the vane and secured at one end to the supporting terminal and overlying the fixed contact on the contact terminal, said resilient vane having a prestressed area bounded by an impression forced in the vane from the outer face thereof and near the supported end thereof and the vane being prestressed by said impression resiliently to urge the free end of the vane outwardly from the base, a thermally expansible and contractible heater ribbon arranged in spaced relation along the inner face of the vane and secured under tension at its ends to the tabs on the ends of the vane and stressing the vane against the force of the prestressing thereof to hold the free end of the vane inwardly toward the base and to cause the bounded prestressed area of the vane to dimple outwardly when the heater ribbon is
- a snap acting electric flasher switch comprising, an insulating base, a supporting terminal carried by the base, a contact terminal carried by the base and having a fixed contact thereon, an elongated substantially rectangular and fiat resilient vane having an outwardly extending tab extending across one end of the vane, an inwardly extending shelf extending across the other end of the vane and an outwardly extending tab extending outwardly from the shelf, and secured at the shelf to the supporting terminal and overlying the fixed contact on the contact terminal, said resilient vane having a prestressed area bounded by an impression forced in the vane from the outer face thereof and near the supported end thereof and the vane being prestressed by said impression resiliently to urge the free end of the vane outwardly from the base, a thermally expansible and contractible heater ribbon arranged in spaced relation along the inner face of the vane and extending over the shelf and secured under tension at its ends to the outwardly extending tabs on the ends of the vane and stressing the vane against the
- a snap acting electric flasher switch comprising, an insulating base, a supporting terminal carried by the base, a contact terminal carried by the base and having a fixed contact thereon, an elongated substantially rectangular and flat resilient vane secured at one end to the supporting terminal and overlying the fixed contact on the contact terminal, said resilient vane having a prestressed area bounded by an open ended partially enclosing impression forced in the vane from the outer face thereof and near the supported end thereof and the vane being prestressed by said impression resiliently to urge the free end of the vane outwardly from the base, a thermally expansible and contractible heater ribbon arranged in spaced relation along the inner face of the vane and secured under tension at its ends to the ends of the vane and stressing the vane against the force of the prestressing thereof to hold the free end of the vane inwardly toward the base and to cause the bounded prestressed area of the vane to dimple outwardly when the heater ribbon is relatively cool, a movable contact secured
- a snap acting electric flasher switch comprising, an insulating base, a supporting terminal carried by the base, a contact terminal carried by the base and having a fixed contact thereon, an elongated substantially rectangular and flat resilient vane secured at one end to the supporting terminal and overlying the fixed contact on the contact terminal, said resilient vane having a prestressed area bounded by an open ended partially enclosing impression forced in the vane from the outer face thereof and near the supported end thereof with the open ended portion of the impression facing toward a long side edge of the vane and the vane being prestressed by said impression resiliently to urge the free end of the vane outwardly from the base, a thermally expansible and contractible heater ribbon arranged in spaced relation along the inner face of the vane and secured under tension at its ends to the ends of the vane and stressing the vane against the force of the prestressing thereof to hold the free end of the vane inwardly toward the base and to cause the bounded prestressed area of the vane to dimple out
- a snap acting electric flasher switch comprising, an insulating base, a supporting terminal carried by the base, a contact terminal carried by the base and having a fixed contact thereon, an elongated substantially rectangular and flat resilient vane secured at one end to the supporting terminal and overlying the fixed contact on the contact terminal, said resilient vane having a prestressed area bounded by an open ended partially enclosing impression forced in the vane from the outer face thereof and near the supported end thereof with the open ended portion of the impression facing toward a long side edge of the vane and the vane being prestressed by said impression resiliently to urge the free end of the vane outwardly from the base, a thermally expansible and contractible heater ribbon arranged in spaced relation along the inner face of the vane and adjacent the other long side edge of the vane and secured under tension at its ends to the ends of the vane and stressing the vane against the force of the prestressing thereof to hold the free end of the vane inwardly toward the base and to cause thebounded prestres
- a snap acting electric flasher switch comprising, an insulating base, a supporting terminal carried by the base, a contact terminal carried by the base and having a-fi'xed contact thereon, an elongated substantially rectangular and flat resilient vane secured at one end to the supporting terminal and overlying the fixed contact on the contact terminal, said resilient vane having a prestressed area bounded by a substantially C-shaped impression forced in the vane from the outer face thereof and near the supported end thereof and the vane being prestressed by said impression resiliently to urge the free end of the vane outwardly from the base, a thermally expansible and contractible heater ribbon arranged in spaced relation along the inner face of the vane and secured under tension at its ends to the ends of the vane and stressing the vane against the force of the prestressing thereof to hold the free end of the vane inwardly toward the base and to cause the bounded prestressed area of the vane to dimple outwardly when the heater ribbon is relatively cool, a movable contact
- a snap acting electric flasher switch comprising, an insulating base, a supporting terminal carried by the base,
- a contact terminal carried by the base and having a fixed contact thereon, an elongated substantially rectangular and flat resilient vane secured at one end to the supporting terminal and overlying the fixed contact on the contact terminal, said resilient vane having a prestressed area bounded by a substantially C-shaped impression forced in the vane from the outer face thereof and near the supported end thereof with the opening of the substantially C-shaped impression facing toward a long side edge of the vane and the vane being prestressed by said impression resiliently to urge the free end of the vane outwardly from the base, a thermally expansible and contractible heater ribbon arranged in spaced relation along the inner face of the vane and secured under tension at its ends to the ends of the vane and stressing the vane against the force of the prestressing thereof to hold the free end of the vane inwardly toward the base and to cause the bounded prestressed area of the vane to dimple outwardly when the heater ribbon is relatively cool, a movable contact secured to the heater ribbon adjacent the center thereof and
- a snap acting electric flasher switch comprising, an insulating base, a supporting terminal carried by the base, a contact terminal carried by the base and having a fixed contact thereon, an elongated substantially rectangular and flat resilient vane secured at one end to the supporting terminal and overlying the fixed contact on the contact terminal, said resilient vane having a prestressed area bounded by a substantially C-shaped impression forced in the vane from the outer face thereof and near the supported end thereof with the opening of the substantially C-shaped impression facing toward a long side edge of the vane and the vane being prestressed by said impression resiliently to urge the free end of the vane outwardly from the base, a thermally expansible and contractible heater ribbon arranged in spaced relation along the inner face of the vane and adjacent the other long side edge of the vane and secured under tension at its ends to the ends of the vane and stressing the vane against the force of the prestressing thereof to hold the free end of the vane inwardly toward the base and to cause the bounded prestres
- a snap acting electric flasher switch comprising, an insulating base, a substantially L-shaped supporting terminal having one leg extending through a slot in the base and the other leg engaging the outer face of the base, a substantially L-shaped contact terminal having one leg extending through a slot in the base and the other leg engaging the outer face of the base, an insulating washer overlying said other legs of the supporting terminal and the contact terminal, a rivet extending through the insulating washer and between said other legs of the supporting terminal and the contact terminal and through the base for securing the supporting terminal and the contact terminal to the base, an outwardly extending mounting ear on said other leg of the supporting terminal, an outwardly extending fixed contact on said other leg of the contact terminal, an elongated prestressed snap acting vane secured at one end to the mounting ear on the supporting terminal and overlying the fixed contact, a heater ribbon secured under tension at its ends to the ends of the vane for snapping the free end of the vane inwardly and outwardly, and a movable contact
- a snap acting electric flasher switch comprising, an insulating base, a substantially L-shaped supporting terminal having one leg extending through a slot in the base and the other leg engaging the outer face of the base, a substantially L-shaped contact terminal having one leg extending through a slot in the base and the other leg engaging the outer face of the base, an insulating washer overlying said other legs of the supporting terminal and the contact terminal, a rivet extending through the insulating washer and between said other legs of the supporting terminal and the contact terminal and through the base for securing the supporting terminal and the contact terminal to the base, lugs on said one legs of the supporting terminal and the contact terminal engaging the other face of the base for also securing the supporting terminal and the contact terminal to the base, an outwardly extending mounting car on said other leg of the supporting terminal, an outwardly extending fixed contact on said other leg of the contact terminal, an elongated prestressed snap acting vane secured at one end to the mounting ear on the supporting terminal and overlying the fixed contact, a heater ribbon secured
- a snap acting electric flasher switch comprising, an insulating base having a pair of recesses in the outer face thereof, a pair of slots extending through the base and communicating respectively with the recesses and a hole extending through the base between the recesses, a substantially L-shaped supporting terminal having one leg extending through one of the slots in the base and the other leg seating in the communicating recess in the base, a substantially L.-shaped contact terminal having one leg extending through the other slot in the base and the other leg seating in the communicating recess in the base, an insulating washer overlying said other legs of the supporting terminal and the contact terminal, a rivet extending through the insulating washer and between said other legs of the supporting terminal and the contact terminal and through the hole in the base for securing the supporting terminal and the contact terminal to the base, an outwardly extending mounting ear on said other leg of the supporting terminal, an outwardly extending fixed contact on said other leg of the contact terminal, an elongated prestressed snap acting vane secured at one end to the
- a snap acting electric flasher switch comprising, an insulating base having a pair of recesses in the outer face thereof, a pair of slots extending through the base and communicating respectively with the recesses and a hole extending through the base between the recesses, a substantially L-shaped supporting terminal having one leg extending through one of the slots in the base and the other leg seating in the communicating recess in the base, a substantially L-shaped contact terminal having one leg extending through the other slot in the base and the other leg seating in the communicating recess in the base, an insulating washer overlying said other legs of the supporting terminal and the contact terminal, a rivet extending through the insulating washer and between said other legs of the supporting terminal and the contact terminal and through the hole in the base for securing the supporting terminal and the contact terminal to the base, lugs on said one legs of the supporting terminal and the contact terminal engaging the other face of the base for also securing the supporting terminal and the contact terminal to the base, an outwardly exending mounting ear on said other leg of the supporting terminal
- an insulating base a substantially L-shaped supporting terminal having one leg extending through a slot in the base and the other leg engaging the outer face of the base, a substantially L-shaped contact terminal having one leg extending through a slot in the base, and the other leg engaging the outer face of the base, said other legs of the supporting terminal and the contact terminal being laterally spaced apart, a single insulating washer overlying and engaging said other legs of the supporting terminal and the contact terminal, a single rivet extending through the insulating washer, between and spaced from said other legs of the supporting terminal and the contact terminal and through the base for securing the supporting terminal and the contact terminal to the base, a fixed contact on said other leg of the contact terminal, a snap acting vane secured to said other leg of the supporting terminal and snapping inwardly and outwardly with respect to the base, and a movable contact operated by the snap acting vane and engaging and disengaging the fixed contact as the snap acting vane is snapped inwardly and outwardly.
- an insulating base a substantially L-shaped supporting terminal having one leg extending through a slot in the base and the other leg engaging the outer face of the base, a substantially L-shaped contact terminal having one leg extending through a slot in the base and the other leg engaging the outer face of the base, an insulating washer overlying said other legs of the supporting terminal and the con-f tact terminal, a rivet extending through the insulating washer and between said other legs of the supporting terminal and the contact terminal and through the base for securing the supporting terminal and the contact terminal to the base, lugs on said one legs of the supporting terminal and the contact terminal engaging the other face of the base for also securing the supporting terminal and the"contact terminal to the base, a fixed contact on said other leg of the contact terminal, a snap acting vane secured to said other leg of the supporting terminal and snapping inwardly and outwardly with respect to the base, and a movable contact operated by the snap acting vane and engaging and disengaging the fixed contact as the snap
- an insulating base having a pair of recesses in the outer face thereof, a pair of slots extending through the base and communicating respectively with the recesses and a hole extending through the base between the recesses, a substantially L-shaped supporting terminal having one leg extending through one of the slots in the base and the other leg seating in the communicating recess in the base, a substantially L-shaped contact terminal having one leg extending through the other slot in the base and the other leg seating in the communicating recess in the base, an insulating washer overlying said other legs of the supporting terminal and the contact terminal, a rivet extending through the insulating washer and between said other legs of the supporting terminal and the contact terminal and through the hole in the base for securing the supporting terminal and the contact terminal to the base, a fixed contact on said other leg of the contact terminal, a snap acting vane secured to said other leg of the supporting terminal and snapping inwardly and outwardly with respect to the base, and a movable contact operated by the snap acting van
- an insulating base having a pair of recesses in the outer face thereof, a pair of slots extending through the base and communicating respectively with the recesses and a hole extending through the base between the recesses, a substantially L-shaped supporting terminal having one leg extending through one of the slots in the base and the other leg seating in the communicating recess in the base, a substantially L-shaped contact terminal having one leg extending through the other slot in the base and the other leg seating in the communicating recess in the base, an insulating washer overlying said other legs of the supporting terminal and the contact terminal, a rivet extending through the insulating washer and between said other legs of the supporting terminal and the contact terminal and through the hole in the base for securing the supporting terminal and the contact terminal to the base, lugs on said one leg of the supporting terminal and the contact terminal engaging the other face of the base for also securing the supporting terminal and the contact terminal to the base, a fixed contact on said other leg of the contact terminal, a snap acting vane
- a snap acting electric flasher switch comprising, an insulating base, a substantially L-shaped supporting terminal having one leg extending through a slot in the base and the other leg engaging the outer face of the base, a substantially L-shaped contact terminal having one leg extending through a slot in the base and the other leg engaging the outer face of the base, an insulating washer overlying said other legs of the supporting terminal and the contact terminal, a rivet extending through the insulating washer and between said other legs of the supporting terminal and the contact terminal and through the base for securing the supporting terminal and the contact terminal to the base, a fixed contact on said other leg of the contact terminal, an elongated substantially rectangular and flat resilient vane secured at one end to said other leg of the supporting terminal and overlying the fixed contact on the contact terminal, said resilient vane having a prestressed area bounded by an impression forced in the vane from the outer face thereof and near the supported end thereof and the vane being prestressed by said impression resiliently to urge the free end of the vane outwardly from the
- a snap acting electric flasher switch comprising, an insulating base having a pair of recesses in the outer face thereof, a pair of slots extending through the base and communicating respectively with the recesses and a hole extending through the base between the recesses, a substantially L-shaped supporting terminal having one leg extending through one of the slots in the base and the other leg seating in the communicating recess in the base, a substantially L-shaped contact terminal having one leg extending through the other slot in the base and the other leg seating in the communicating recess in the base, an insulating washer overlying said other legs of the supporting terminal and the contact terminal, a rivet extending through the insulating washer and between said other legs of the supporting terminal and the contact terminal and through the hole in the base for securing the supporting terminal and the contact terminal to the base, a fixed contact on said other leg of the contact terminal, an elongated substantially rectangular and flat resilient vane secured at one end to said other leg of the supporting terminal and overlying the fixed contact on the contact terminal, said resilient vane having
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermally Actuated Switches (AREA)
Description
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US595889A US2878340A (en) | 1956-07-05 | 1956-07-05 | Snap acting flasher switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US595889A US2878340A (en) | 1956-07-05 | 1956-07-05 | Snap acting flasher switch |
Publications (1)
Publication Number | Publication Date |
---|---|
US2878340A true US2878340A (en) | 1959-03-17 |
Family
ID=24385128
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US595889A Expired - Lifetime US2878340A (en) | 1956-07-05 | 1956-07-05 | Snap acting flasher switch |
Country Status (1)
Country | Link |
---|---|
US (1) | US2878340A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3080464A (en) * | 1959-08-06 | 1963-03-05 | Tung Sol Electric Inc | Snap acting switch blade |
US3088012A (en) * | 1959-10-20 | 1963-04-30 | Hudson Lamp Company | Snap-action device |
US3236972A (en) * | 1963-12-31 | 1966-02-22 | Hudson Lamp Company | Noise level increaser for snap-action devices |
US3256406A (en) * | 1963-04-25 | 1966-06-14 | Ideal Corp | Single-curved vane-type thermally actuated switch |
US3518598A (en) * | 1968-03-11 | 1970-06-30 | Niehoff & Co C E | Snap action electric switch |
US3533040A (en) * | 1968-03-11 | 1970-10-06 | Niehoff & Co C E | Snap action electric switch |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2429784A (en) * | 1944-11-29 | 1947-10-28 | Soreng Mfg Corp | Circuit breaker |
US2507065A (en) * | 1945-11-14 | 1950-05-09 | Walter C Trautman | Pressure control switch |
US2520874A (en) * | 1942-10-19 | 1950-08-29 | Fasco Industries | Manually operable thermostatic switch assembly |
US2615106A (en) * | 1951-07-21 | 1952-10-21 | Schmidinger Joseph | Snap action device |
US2707216A (en) * | 1953-01-21 | 1955-04-26 | Essex Wire Corp | Bimetal blade |
US2756304A (en) * | 1953-08-18 | 1956-07-24 | Signal Stat Corp | Snap-action device |
-
1956
- 1956-07-05 US US595889A patent/US2878340A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2520874A (en) * | 1942-10-19 | 1950-08-29 | Fasco Industries | Manually operable thermostatic switch assembly |
US2429784A (en) * | 1944-11-29 | 1947-10-28 | Soreng Mfg Corp | Circuit breaker |
US2507065A (en) * | 1945-11-14 | 1950-05-09 | Walter C Trautman | Pressure control switch |
US2615106A (en) * | 1951-07-21 | 1952-10-21 | Schmidinger Joseph | Snap action device |
US2707216A (en) * | 1953-01-21 | 1955-04-26 | Essex Wire Corp | Bimetal blade |
US2756304A (en) * | 1953-08-18 | 1956-07-24 | Signal Stat Corp | Snap-action device |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3080464A (en) * | 1959-08-06 | 1963-03-05 | Tung Sol Electric Inc | Snap acting switch blade |
US3088012A (en) * | 1959-10-20 | 1963-04-30 | Hudson Lamp Company | Snap-action device |
US3256406A (en) * | 1963-04-25 | 1966-06-14 | Ideal Corp | Single-curved vane-type thermally actuated switch |
US3236972A (en) * | 1963-12-31 | 1966-02-22 | Hudson Lamp Company | Noise level increaser for snap-action devices |
US3518598A (en) * | 1968-03-11 | 1970-06-30 | Niehoff & Co C E | Snap action electric switch |
US3533040A (en) * | 1968-03-11 | 1970-10-06 | Niehoff & Co C E | Snap action electric switch |
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