Patent US4038620A successfully refreshed from Google Patents.
US4038620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic reed switch
Assignee: Individual
•
Filing: 1975-09-08
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Granted: 1977-07-26
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Expires: 1995-09-08
Abstract
Abstract A reed switch which comprises a first reed of conductive material and a second reed of conductive non-magnetic material mounted in cooperating spaced relation to said first reed. The first reed comprises a body of conductive material having a contact section, an intermediate spring section and a support section, with the intermediate section being foil thin and the contact section being substantially rigid and non-flexible and being substantially thicker than said intermediate section. The intermediate section comprises a leaf spring having a flexibility permitting one end of said leaf spring to flex a substantial distance through an arc with respect to the other end of said leaf spring without exceeding the elastic limits of said spring. The intermediate section is cold-worked to a point where said conductive material assumes a substantial change in physical characteristics and is substantially harder, less ductile and more dense than said contact section and has a substantially higher tensile strength than said contact section. This invention also includes a magnetic operator mounted in cooperating spaced relation to said first and second reeds, whereby cooperative operation of said magnetic operator with said magnetic reed causes said magnetic reed to move into or out of contact with said non-magnetic reed.
Inventors
- 👤 B. Edward Shlesinger, Jr.
- 👤 Charlie Dwain Mariner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:09
CPC Classifications
H; H01; H01H; H01H36/00; H01H36/0006; H01H36/0013; H01H36/0026; H01H51/00; H01H51/28; H01H51/287; H01H1/00; H01H1/12; H01H1/14; H01H1/24; H01H2001/247
Claims Analysis
Total Claims: 69
Claim 1
Independent Claim
190 words
A reed switch comprising: (a) a first reed of conductive magnetic material (b) a second reed of conductive non-magnetic material mounted in cooperating spaced relation to said first reed. (c) said first reed comprising a body of conductive material having a contact section, an intermediate spring section and a support section (d) said intermediate section being foil-thin (e) said contact section being substantially rigid and non-flexible (f) said contact section being substantially thicker than said intermediate section (g) said intermediate section comprising a leaf spring having a flexibility permitting one end of said leaf spring to flex a substantial distance through an arc with respect to the other end of said leaf spring without exceeding the elastic limits of said spring (h) said intermediate section being substantially harder, less ductile and more dense than said contact section and having a substantially higher tensile strength than said contact section (i) a magnetic operator mounted in cooperating spaced relation to said first and second reeds (j) whereby cooperative operation of said magnetic operator with said magnetic reed causes said magnetic reed to move into or out of contact with said non-magnetic reed.
Claim 2
Dependent Claim
190 words
A reed switch comprising: (a) a first reed of conductive magnetic material (b) a second reed of conductive non-magnetic material mounted in cooperating spaced relation to said first reed. (c) said first reed comprising a body of conductive material having a contact section, an intermediate spring section and a support section (d) said intermediate section being foil-thin (e) said contact section being substantially rigid and non-flexible (f) said contact section being substantially thicker than said intermediate section (g) said intermediate section comprising a leaf spring having a flexibility permitting one end of said leaf spring to flex a substantial distance through an arc with respect to the other end of said leaf spring without exceeding the elastic limits of said spring (h) said intermediate section being substantially harder, less ductile and more dense than said contact section and having a substantially higher tensile strength than said contact section (i) a magnetic operator mounted in cooperating spaced relation to said first and second reeds (j) whereby cooperative operation of said magnetic operator with said magnetic reed causes said magnetic reed to move into or out of contact with said non-magnetic reed.
Claim 3
Dependent Claim
33 words
A reed switch as in claim 1 and wherein: (a) said magnetic operator is positioned to operate when the magnetic flux lines are substantially oriented with the longitudinal axis of said magnetic reed.
Claim 4
Dependent Claim
34 words
A reed switch as in claim 1 and wherein: (a) said magnetic operator is positioned to operate so that the magnetic flux lines are substantially transverse to the longitudinal axis of said magnetic reed.
Claim 5
Dependent Claim
20 words
A reed switch as in claim 1 and wherein: (a) said reeds and said operator move relative to each other.
Claim 6
Dependent Claim
16 words
A reed switch as in claim 1 and including: (a) a pair of said magnetic operators.
Claim 7
Dependent Claim
17 words
A reed switch as in claim 5 and wherein: (a) said reeds are positioned between said operators.
Claim 8
Dependent Claim
34 words
A reed switch as in claim 5 and wherein: (a) said magnetic operators are positioned to operate when the magnetic flux lines are greater than 45° with respect to the plane of the reeds.
Claim 9
Dependent Claim
17 words
A reed switch as in claim 5 and wherein: (a) said magnetic operators when operating are aiding.
Claim 10
Dependent Claim
17 words
A reed switch as in claim 5 and wherein: (a) said magnetic operators when operating are opposing.
Claim 11
Dependent Claim
18 words
A reed switch as in claim 5 and wherein: (a) said magnetic operators are rotatable about said reeds.
Claim 12
Dependent Claim
21 words
A reed switch as in claim 5 and wherein: (a) at least one of said magnetic operators includes polarity reversing means.
Claim 13
Dependent Claim
21 words
A reed switch as in claim 11 and wherein: (a) said polarity reversing means includes at least one rotatable permanent magnet.
Claim 14
Dependent Claim
19 words
A reed switch as in claim 11 and wherein: (a) said polarity reversing means includes at least one electromagnet.
Claim 15
Dependent Claim
17 words
A reed switch as in claim 1 and wherein: (a) said magnetic operator includes a permanent magnet.
Claim 16
Dependent Claim
16 words
A reed switch as in claim 1 and wherein: (a) said magnetic operator includes an electromagnet.
Claim 17
Dependent Claim
18 words
A reed switch as in claim 1 and wherein: (a) said magnetic operator is rotatable on its axis.
Claim 18
Dependent Claim
16 words
A reed switch as in claim 1 and wherein: (a) said magnetic operator is linearly movable.
Claim 19
Dependent Claim
25 words
A reed switch as in claim 5 and wherein: (a) at least one of said pair of magnetic operators is movable relative to the other.
Claim 20
Dependent Claim
20 words
A reed switch as in claim 5 and wherein: (a) said first reed is positioned approximately mid-way between said operators.
Claim 21
Dependent Claim
22 words
A reed switch as in claim 5 and wherein: (a) said first reed is positioned closer to one operator than the other.
Claim 22
Dependent Claim
30 words
A reed switch as in claim 5 and wherein: (a) at least one of said magnetic operators is movable along an axis substantially parallel to the plane of said reeds.
Claim 23
Dependent Claim
28 words
A reed switch as in claim 21 and including: (a) a third conductive non-magnetic reed, and (b) said first reed is positioned intermediate said second and third reeds.
Claim 24
Dependent Claim
16 words
A reed switch as in claim 1 and wherein: (a) said (a) is a horseshoe magnet.
Claim 25
Dependent Claim
21 words
A reed switch as in claim 1 and wherein: (a) said intermediate section flexes through an arc of at least 25°.
Claim 26
Dependent Claim
28 words
A reed switch as in claim 24 and including: (a) a plurality of said magnetic operators cooperating with each other and in cooperating spaced relation to said reeds.
Claim 27
Dependent Claim
16 words
A reed switch as in claim 24 and wherein: (a) said operator is a horseshoe magnet.
Claim 28
Dependent Claim
21 words
A reed switch as in claim 1 and wherein: (a) said intermediate section cross sectional thickness is less than 0.001 inches.
Claim 29
Dependent Claim
33 words
A reed switch as in claim 27 and wherein: (a) said magnetic operator is positioned to operate when the magnetic flux lines are substantially oriented with the longitudinal axis of said magnetic reed.
Claim 30
Dependent Claim
34 words
A reed switch as in claim 27 and wherein: (a) said magnetic operator is positioned to operate so that the magnetic flux lines are substantially transverse to the longitudinal axis of said magnetic reed.
Claim 31
Dependent Claim
20 words
A reed switch as in claim 27 and wherein: (a) said reeds and said operator move relative to each other.
Claim 32
Dependent Claim
16 words
A reed switch as in claim 27 and including: (a) a pair of said magnetic operators.
Claim 33
Dependent Claim
17 words
A reed switch as in claim 31 and wherein: (a) said reeds are positioned between said operators.
Claim 34
Dependent Claim
34 words
A reed switch as in claim 31 and wherein: (a) said magnetic operators are positioned to operator when the magnetic flux lines are greater than 45° with respect to the plane of the reeds.
Claim 35
Dependent Claim
17 words
A reed switch as in claim 31 and wherein: (a) said magnetic operators when operating are aiding.
Claim 36
Dependent Claim
17 words
A reed switch as in claim 31 and wherein: (a) said magnetic operators when operating are opposing.
Claim 37
Dependent Claim
18 words
A reed switch as in claim 31 and wherein: (a) said magnetic operators are rotatable about said reeds.
Claim 38
Dependent Claim
21 words
A reed switch as in claim 31 and wherein: (a) at least one of said magnetic operators includes polarity reversing means.
Claim 39
Dependent Claim
21 words
A reed switch as in claim 37 and wherein: (a) said polarity reversing means includes at least one rotatable permanent magnet.
Claim 40
Dependent Claim
19 words
A reed switch as in claim 37 and wherein: (a) said polarity reversing means includes at least one electromagnet.
Claim 41
Dependent Claim
17 words
A reed switch as in claim 27 and wherein: (a) said magnetic operator includes a permanent magnet.
Claim 42
Dependent Claim
16 words
A reed switch as in claim 27 and wherein: (a) said magnetic operator includes an electromagnet.
Claim 43
Dependent Claim
18 words
A reed switch as in claim 27 and wherein: (a) said magnetic operator is rotatable on its axis.
Claim 44
Dependent Claim
16 words
A reed switch as in claim 27 and wherein: (a) said magnetic operator is linearly movable.
Claim 45
Dependent Claim
25 words
A reed switch as in claim 31 and wherein: (a) at least one of said pair of magnetic operators is movable relative to the other.
Claim 46
Dependent Claim
20 words
A reed switch as in claim 31 and wherein: (a) said first reed is positioned approximately mid-way between said operators.
Claim 47
Dependent Claim
22 words
A reed switch as in claim 31 and wherein: (a) said first reed is positioned closer to one operator than the other.
Claim 48
Dependent Claim
30 words
A reed switch as in claim 31 and wherein: (a) at least one of said magnetic operators is movable along an axis substantially parallel to the plane of said reeds.
Claim 49
Dependent Claim
28 words
A reed switch as in claim 47 and including: (a) a third conductive non-magnetic reed, and (b) said first reed is positioned intermediate said second and third reeds.
Claim 50
Dependent Claim
28 words
A reed switch as in claim 27 and including: (a) a plurality of said magnetic operators cooperating with each other and in cooperating spaced relation to said reeds.
Claim 51
Dependent Claim
16 words
A reed switch as in claim 27 and wherein: (a) said operator is a horseshoe magnet.
Claim 52
Dependent Claim
74 words
A reed switch comprising: (a) a first reed of conductive magnetic material (b) a second reed of conductive non-magnetic material mounted in cooperating spaced relation to said first reed (c) a cooperating pair of magnetic operators mounted in cooperating spaced relation to said first and second reeds (d) said reeds being positioned between said pair of operators, and (e) at least some of said operators and said reeds being movable relative to each other.
Claim 53
Dependent Claim
74 words
A reed switch comprising: (a) a first reed of conductive magnetic material (b) a second reed of conductive non-magnetic material mounted in cooperating spaced relation to said first reed (c) a cooperating pair of magnetic operators mounted in cooperating spaced relation to said first and second reeds (d) said reeds being positioned between said pair of operators, and (e) at least some of said operators and said reeds being movable relative to each other.
Claim 54
Dependent Claim
18 words
A reed switch as in claim 51 and wherein: (a) said operators include at least one permanent magnet.
Claim 55
Dependent Claim
18 words
A reed switch as in claim 51 and wherein: (a) said operators include a pair of permanent magnets.
Claim 56
Dependent Claim
17 words
A reed switch as in claim 51 and wherein: (a) said operators iclude at least one electromagnet.
Claim 57
Dependent Claim
34 words
A reed switch as in claim 51 and wherein: (a) said magnetic operators are positioned to operate when the magnetic flux lines are greater than 45° with respect to the plane of the reeds.
Claim 58
Dependent Claim
17 words
A reed switch as in claim 51 and wherein: (a) said magnetic operators when operating are aiding.
Claim 59
Dependent Claim
17 words
A reed switch as in claim 51 and wherein: (a) said magnetic operators when operating are opposing.
Claim 60
Dependent Claim
18 words
A reed switch as in claim 51 and wherein: (a) said magnetic operators are rotatable about said reeds.
Claim 61
Dependent Claim
21 words
A reed switch as in claim 51 and wherein: (a) at least one of said magnetic operators includes polarity reversing means.
Claim 62
Dependent Claim
21 words
A reed switch as in claim 59 and wherein: (a) said polarity reversing means includes at least one rotatable permanent magnet.
Claim 63
Dependent Claim
19 words
A reed switch as in claim 59 and wherein: (a) said polarity reversing means includes at least one electromagnet.
Claim 64
Dependent Claim
22 words
A reed switch as in claim 51 and wherein: (a) at least one of said magnetic operators is rotatable on its axis.
Claim 65
Dependent Claim
20 words
A reed switch as in claim 51 and wherein: (a) at least one of said magnetic operators is linearly movable.
Claim 66
Dependent Claim
20 words
A reed switch as in claim 51 and wherein: (a) said first reed is positioned approximately mid-way between said operators.
Claim 67
Dependent Claim
24 words
A reed switch as in claim 51 and wherein: (a) said first reed is positioned closer to one of said operators than the other.
Claim 68
Dependent Claim
30 words
A reed switch as in claim 51 and wherein: (a) at least one of said magnetic operators is movable along an axis substantially parallel to the plane of said reed.
Claim 69
Dependent Claim
26 words
A reed switch as in claim 51 and including: (a) a third reed, and (b) a first reed being positioned intermediate said second and third reeds.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |