Patent US3828901A successfully refreshed from Google Patents.
US3828901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric coupling control means
Assignee: Acme Cleveland Corp
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Filing: 1973-08-01
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Granted: 1974-08-13
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Expires: 1993-08-01
Abstract
Abstract An electrical coupling control system is disclosed for a multiple spindle automatic machine tool which has an indexable spindle carrier with a plurality of rotatable spindles. An electrical clutch and brake unit with a neutral condition is provided for each spindle and the clutch, brake, or neutral condition is selectively established by different values of a single polarity control DC voltage. This selector means controls each particular spindle for each spindle position of the spindle carrier. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.
Inventors
- 👤 N Flueckiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:32
CPC Classifications
F; F16; F16D; F16D67/00; F16D67/02; F16D67/06; B; B23; B23B; B23B9/00; B23B9/005; Y; Y10; Y10T; Y10T82/00; Y10T82/25; Y10T82/2502; Y10T82/2524
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
228 words
An electric coupling control for a multiple spindle automatic machine having means to index a spindle carrier with a plurality of n rotatable spindles therein and having drive means to rotate the spindles, said electric coupling control comprising in combination, a clutch and brake unit including coil means for each of said spindles, each spindle in the spindle carrier having a first coupling through the associated clutch to the drive means and having a second coupling through the associated brake to the spindle carrier to brake the spindle relative to the spindle carrier, clutch and brake actuation means for at least one of said units including, power source means, relatively rotatable brush and conductor assemblies, means to establish relative rotation between said assemblies in accordance with indexing movements of the spindle carrier, said actuation means including means connecting said power source means through said brush and conductor assemblies to establish energization of said coil means in first and second electrical conditions to actuate said one clutch and said one brake, respectively, selector means including said conductor assembly to provide electrical energization to said coil means in each of said spindles for selective clutch or brake actuation, and control means for each clutch and brake unit operable from a single polarity voltage from said power source means to establish said first and second electrical conditions of said actuation means.
Claim 2
Dependent Claim
228 words
An electric coupling control for a multiple spindle automatic machine having means to index a spindle carrier with a plurality of n rotatable spindles therein and having drive means to rotate the spindles, said electric coupling control comprising in combination, a clutch and brake unit including coil means for each of said spindles, each spindle in the spindle carrier having a first coupling through the associated clutch to the drive means and having a second coupling through the associated brake to the spindle carrier to brake the spindle relative to the spindle carrier, clutch and brake actuation means for at least one of said units including, power source means, relatively rotatable brush and conductor assemblies, means to establish relative rotation between said assemblies in accordance with indexing movements of the spindle carrier, said actuation means including means connecting said power source means through said brush and conductor assemblies to establish energization of said coil means in first and second electrical conditions to actuate said one clutch and said one brake, respectively, selector means including said conductor assembly to provide electrical energization to said coil means in each of said spindles for selective clutch or brake actuation, and control means for each clutch and brake unit operable from a single polarity voltage from said power source means to establish said first and second electrical conditions of said actuation means.
Claim 3
Dependent Claim
24 words
An electric coupling control as set forth in claim 1, including a separate coil for each clutch and brake for each of said spindles.
Claim 4
Dependent Claim
35 words
An electric coupling control as set forth in claim 1, wherein said selector means includes n switches each having clutch and brake conditions to establish clutch or brake actuation of each of the n spindles.
Claim 5
Dependent Claim
34 words
An electric coupling control as set forth in claim 1, including a degaussing coil in said actuation means connected to be energized with each of the coil means of said clutch and brake units.
Claim 6
Dependent Claim
44 words
An electric coupling control as set forth in claim 1, including a continuous conductor ring in said conductor assembly to establish all clutch coil means continuously in said first electrical condition as the spindle carrier is indexed except when said selector means dictates otherwise.
Claim 7
Dependent Claim
45 words
An electric coupling control as set forth in claim 5, including a second continuous conductor ring in said conductor assembly to establish all clutch coil means continuously in said first electrical condition as the spindle carrier is indexed except when said selector means dictates otherwise.
Claim 8
Dependent Claim
42 words
An electric coupling control as set forth in claim 1, wherein said clutch and brake units have a neutral condition, and said control means being operable to establish a third electrical condition for the neutral condition of said clutch and brake units.
Claim 9
Dependent Claim
55 words
An electric coupling control as set forth in claim 7, including a continuous conductor ring in said conductor assembly to establish all clutch coil means continuously in said first electrical condition as the spindle carrier is indexed except when said selector means dictates a neutral or brake condition on a particular clutch and brake unit.
Claim 10
Dependent Claim
36 words
An electric coupling control as set forth in claim 7, wherein said control means is operable from a single polarity voltage from said power source means to establish said third electrical condition of said actuation means.
Claim 11
Dependent Claim
46 words
An electric coupling control as set forth in claim 7, wherein said power source means includes first, second, third output terminals with a single polarity DC voltage thereon and with the potential of said third terminal being intermediate to that of said first and second terminals.
Claim 12
Dependent Claim
40 words
An electric coupling control as set forth in claim 7, wherein said selector means includes n switches each having clutch, brake and neutral conditions to establish clutch or brake actuation or actuation of neither for each of the n spindles.
Claim 13
Dependent Claim
38 words
An electric coupling control as set forth in claim 1, wherein said actuation means includes first and second semiconductor devices selectively conductive by said control means to establish said first and second electrical conditions of said actuation means.
Claim 14
Dependent Claim
16 words
An electric coupling control as set forth in claim 12, wherein said semiconductor devices are controllable.
Claim 15
Dependent Claim
42 words
An electric coupling control as set forth in claim 12, wherein said control means includes a breakdown diode connected to saiD semiconductor devices to change one of said first and second electrical conditions upon the breakdown potential of said diode being exceeded.
Claim 16
Dependent Claim
30 words
An electric coupling control as set forth in claim 12, including in said control means a third semiconductor device connected to said first semiconductor device to be alternatively conducting therewith.
Claim 17
Dependent Claim
53 words
An electric coupling control as set forth in claim 15, wherein said control means includes first and second breakdown diodes connected to said third and second semiconductors to control selectively the conduction of said third and second semiconductor devices upon the breakdown potentials of the first and second breakdown diodes being exceeded, respectively.
Claim 18
Dependent Claim
32 words
An electric coupling control as set forth in claim 16, including a common connection to said first and second breakdown diodes to apply to each a control voltage from said selector means.
Claim 19
Dependent Claim
37 words
An electric coupling control as set forth in claim 17, including a segmented conductor with n segments in said conductor assembly, and a connection from said first and second breakdown diodes to one of said n segments.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |