Patent US3597737A successfully refreshed from Google Patents.
US3597737A
Expired / Lapsed
US
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Interlocking switch arrangement
Assignee: Susquehanna Corp
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Filing: 1968-06-21
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Granted: 1971-08-03
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Expires: 1988-06-21
Abstract
Abstract An example of an interlocking switch arrangement is a matrix design having an interlocking circuit connected at each matrix cross point. Each interlocking circuit has a relay which when actuated closes the matrix at its associated cross point. Prior to actuation of its relay, this circuit grounds the matrix column and row buses at its cross point. This serves to open the matrix at any other cross point in the same row and column thereby preventing the matrix from being connected at more than one cross point in any column or row at the same time. The matrix design affords versatility in that it permits interlocking circuits to be easily added to or removed from the matrix without affecting or requiring any altering of the other interlocking circuits.
Inventors
- 👤 Jacob L Wallace Jr
- 👤 Robert M Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:26
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/0008; H04Q3/0012
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
131 words
An interlocking arrangeMent for switches comprising: a. a common line, b. a plurality of interlocking circuits connected in parallel to said common line, c. a source of potential for said common line, said source of potential being applied to each interlocking circuit, d. each of said interlocking circuits including: 1. means for actuating one of said switches, 2. means responsive to the potential applied to said common line for holding said one switch in an actuated state, 3. means responsive to the operation of said actuating means for removing said potential level from the other interlocking circuits thereby to release any actuated switches in the other interlocking circuits, and 4. means responsive to said actuating means for delaying actuation of said one switch until all other actuated switches have been released.
Claim 2
Dependent Claim
131 words
An interlocking arrangeMent for switches comprising: a. a common line, b. a plurality of interlocking circuits connected in parallel to said common line, c. a source of potential for said common line, said source of potential being applied to each interlocking circuit, d. each of said interlocking circuits including: 1. means for actuating one of said switches, 2. means responsive to the potential applied to said common line for holding said one switch in an actuated state, 3. means responsive to the operation of said actuating means for removing said potential level from the other interlocking circuits thereby to release any actuated switches in the other interlocking circuits, and 4. means responsive to said actuating means for delaying actuation of said one switch until all other actuated switches have been released.
Claim 3
Dependent Claim
19 words
means responsive to the potential applied to said common line for holding said one switch in an actuated state,
Claim 4
Dependent Claim
19 words
means responsive to the potential applied to said common line for holding said one switch in an actuated state,
Claim 5
Dependent Claim
10 words
An interlocking arrangement for switches comprising: a. a matrix, having
Claim 6
Dependent Claim
10 words
An interlocking arrangement for switches comprising: a. a matrix, having
Claim 7
Dependent Claim
58 words
a plurality of column buses, said row and column buses defining cross points, b. a switch for connecting a row bus to a column bus at each of a plurality of said cross points, c. an interlocking circuit associated with each switch and connected to a row bus and to a column bus, d. each interlocking circuit comprising:
Claim 8
Dependent Claim
58 words
a plurality of column buses, said row and column buses defining cross points, b. a switch for connecting a row bus to a column bus at each of a plurality of said cross points, c. an interlocking circuit associated with each switch and connected to a row bus and to a column bus, d. each interlocking circuit comprising:
Claim 9
Dependent Claim
23 words
means responsive to said actuating means for releasing any other actuated switches which are connected to the same row bus or column bus.
Claim 10
Dependent Claim
23 words
means responsive to said actuating means for releasing any other actuated switches which are connected to the same row bus or column bus.
Claim 11
Dependent Claim
23 words
at least one contact, said contact being positioned to connect a row bus to a column bus upon actuation of its associated relay.
Claim 12
Dependent Claim
23 words
at least one contact, said contact being positioned to connect a row bus to a column bus upon actuation of its associated relay.
Claim 13
Dependent Claim
37 words
An interlocking arrangement for switches as claimed in claim 2 further comprising: a. means in each interlocking circuit for holding its associated switch in an actuated state once said switch has been actuated by said actuating means.
Claim 14
Dependent Claim
31 words
means responsive to the operation of said actuating means for removing said potential level from the other interlocking circuits thereby to release any actuated switches in the other interlocking circuits, and
Claim 15
Dependent Claim
31 words
means responsive to the operation of said actuating means for removing said potential level from the other interlocking circuits thereby to release any actuated switches in the other interlocking circuits, and
Claim 16
Dependent Claim
21 words
means responsive to said actuating means for delaying actuation of said one switch until all other actuated switches have been released.
Claim 17
Dependent Claim
21 words
means responsive to said actuating means for delaying actuation of said one switch until all other actuated switches have been released.
Claim 18
Dependent Claim
106 words
An interlocking arrangement for switches as claimed in claim 3 further comprising: a. a source of voltage for each of said plurality of row buses, b. said holding means in each interlocking circuit being connected to receive voltage from said source for holding its associated switch in an actuated state once said switch has been actuated by said actuating means, and c. said releasing means in each interlocking circuit acting in response to the operation of said actuating means to remove said potential level from the other actuated interlocking circuits connected to the same row bus or column bus thereby to release the associated actuated switches.
Claim 19
Dependent Claim
40 words
An interlocking arrangement for switches as claimed in claim 4 further comprising: a. means in each interlocking circuit responsive to said actuating means for delaying actuation of its associated switch until said releasing means has released said associated actuated switches.
Claim 20
Dependent Claim
19 words
An interlocking arrangement for switches as claimed in claim 5 in which: a. each switch includes a relay having
References Cited (Backward Citations)
US3048821A
Cited
US3366849A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |