GB1330357A - Magnetic reed contact units - Google Patents

Magnetic reed contact units

Info

Publication number
GB1330357A
GB1330357A GB6192170A GB6192170A GB1330357A GB 1330357 A GB1330357 A GB 1330357A GB 6192170 A GB6192170 A GB 6192170A GB 6192170 A GB6192170 A GB 6192170A GB 1330357 A GB1330357 A GB 1330357A
Authority
GB
United Kingdom
Prior art keywords
buttons
contact
reeds
ferromagnetic
reed
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
Application number
GB6192170A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB1330357A publication Critical patent/GB1330357A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00Electromagnetic relays
    • H01H51/28Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed
    • H01H51/287Details of the shape of the contact springs

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Contacts (AREA)

Abstract

1330357 Contact units for switches M MARTELLI 31 Dec 1970 [9 Jan 1970] 61921/70 Heading H1N The ferromagnetic reeds of a sealed magnetic reed contact unit are provided with co-operating non-magnetic contact buttons 37, 39 or 53, 57 mounted on surfaces of the ferromagnetic reed which when the buttons are in engagement are further apart than other faces of the reeds. Fig. 7 shows such an arrangement with one of buttons 37 in a recess 35A in the reed 35 so that the minimum air gaps are at I1, I2. Both reeds may be recessed to accommodate respective buttons in narrow necked recesses (Fig. 8, not shown) and the surfaces of the reeds in the minimum air gaps may be inclined with respect to the plane lying tangential to the buttons at their point of contact (Fig. 9). This contact arrangement can be incorporated in units such as that of Fig. 2 with ferromagnetic members 13, 15 or resilient members 13E, 15E or arrangements where and/or the ferromagnetic members 23, 25 (Fig. 5) are mounted on resilient members 23E, 25E mounted at the same end of the contact unit.
GB6192170A 1970-01-09 1970-12-31 Magnetic reed contact units Expired GB1330357A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT931070 1970-01-09

Publications (1)

Publication Number Publication Date
GB1330357A true GB1330357A (en) 1973-09-19

Family

ID=11128228

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6192170A Expired GB1330357A (en) 1970-01-09 1970-12-31 Magnetic reed contact units

Country Status (6)

Country Link
US (1) US3708770A (en)
JP (1) JPS4925140B1 (en)
CA (1) CA947799A (en)
DE (1) DE2100130A1 (en)
FR (1) FR2076015A1 (en)
GB (1) GB1330357A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS551004Y2 (en) * 1973-03-02 1980-01-12
JPS5235035U (en) * 1975-09-02 1977-03-12
DE3704470A1 (en) * 1987-02-13 1988-08-25 Karl Kapfer Reed contact arrangement

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2450499A (en) * 1945-09-21 1948-10-05 Bell Telephone Labor Inc Circuit maker and breaker
US2987593A (en) * 1959-12-29 1961-06-06 Gen Electric Magnetic switches
US3307126A (en) * 1963-08-20 1967-02-28 Sylvania Electric Prod Encapsulated magnetic switch
US3317869A (en) * 1965-07-06 1967-05-02 Allen Bradley Co Reed switch having large current carrying capacity
US3371167A (en) * 1965-12-13 1968-02-27 Spectrol Electronics Corp Miniature rotary switch with contoured contacts

Also Published As

Publication number Publication date
JPS4925140B1 (en) 1974-06-27
FR2076015A1 (en) 1971-10-15
US3708770A (en) 1973-01-02
CA947799A (en) 1974-05-21
DE2100130A1 (en) 1971-07-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees