Patent US4405431A successfully refreshed from Google Patents.
US4405431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for partial electrolytic coating of individual metal parts
Assignee: Evonik Operations GmbH
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Filing: 1981-07-22
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Granted: 1983-09-20
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Expires: 2001-07-22
Abstract
Abstract Apparatus is disclosed for partial electrolytic coating of individual metal parts, wherein a conveying chain, running over a pair of rolls, has individual holding elements joined together by pins. The holding elements have a contact cover plate and clamping cover plate with spacing means therebetween. Spring means is provided which is adapted for forcing the contact cover plate and clamping cover plate toward each other.
Inventors
- 👤 Alfred Pfeifer
- 👤 Rudolf Seif
- 👤 Dietmar Holdt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:29
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/02; B; B65; B65G; B65G17/00; B65G17/30; B65G17/46; C25D17/00; C25D17/06; C25D17/16; C25D17/28; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
124 words
An apparatus for the partial electrolytic coating of individual metal parts, especially pins, switches and belts for electrical contacts, consisting essentially of an electrolyte tank, a conveying chain means running over a pair of rolls for fastening and contacting the parts to be coated, means for loading and withdrawing the parts to be coated, said conveying chain means comprising individual holding elements which are joined directly together by pins, said holding elements comprising a contact cover plate and a clamping cover plate, means for spacing the clamping cover plate from the contact cover plate and spring means adopted to force the clamping cover plate toward the contact cover plate, said rolls being provided with a groove having a conically shaped side surrounding each roll.
Claim 2
Independent Claim
124 words
An apparatus for the partial electrolytic coating of individual metal parts, especially pins, switches and belts for electrical contacts, consisting essentially of an electrolyte tank, a conveying chain means running over a pair of rolls for fastening and contacting the parts to be coated, means for loading and withdrawing the parts to be coated, said conveying chain means comprising individual holding elements which are joined directly together by pins, said holding elements comprising a contact cover plate and a clamping cover plate, means for spacing the clamping cover plate from the contact cover plate and spring means adopted to force the clamping cover plate toward the contact cover plate, said rolls being provided with a groove having a conically shaped side surrounding each roll.
Claim 3
Dependent Claim
12 words
An apparatus according to claim 1 wherein the spacing means is balls.
Claim 4
Dependent Claim
19 words
An apparatus according to claim 2 comprising adjusting bolt means for controlling the elastic force of the spring means.
Claim 5
Dependent Claim
19 words
An apparatus according to claim 1 wherein each of the rolls is provided with teeth for receiving the pins.
Claim 6
Dependent Claim
19 words
An apparatus according to claim 4 comprising adjusting bolt means for controlling the elastic force of the spring means.
Claim 7
Dependent Claim
31 words
An apparatus according to claim 5 wherein the contact cover plate and the clamping cover plate each has an end for gripping the pins, said gripping ends being of rhomboid shape.
Claim 8
Dependent Claim
10 words
An apparatus according to claim 4 including chain guide means.
Claim 9
Dependent Claim
31 words
An apparatus according to claim 7 wherein the contact cover plate and the clamping cover plate each has an end for gripping the pins, said gripping ends being of rhomboid shape.
Claim 10
Dependent Claim
31 words
An apparatus according to claim 4 wherein the contact cover plate and the clamping cover plate each has an end for gripping the pins, said gripping ends being of rhomboid shape.
Claim 11
Dependent Claim
19 words
An apparatus according to claim 1 comprising adjusting bolt means for controlling the elastic force of the spring means.
Claim 12
Dependent Claim
10 words
An apparatus according to claim 10 including chain guide means.
Claim 13
Dependent Claim
31 words
An apparatus according to claim 11 wherein the contact cover plate and the clamping cover plate each has an end for gripping the pins, said gripping ends being of rhomboid shape.
Claim 14
Dependent Claim
31 words
An apparatus according to claim 10 wherein the contact cover plate and the clamping cover plate each has an end for gripping the pins, said gripping ends being of rhomboid shape.
Claim 15
Dependent Claim
19 words
An apparatus according to claim 1 comprising adjusting bolt means for controlling the elastic force of the spring means.
Claim 16
Dependent Claim
10 words
An apparatus according to claim 1 including chain guide means.
Claim 17
Dependent Claim
31 words
An apparatus according to claim 15 wherein the contact cover plate and the clamping cover plate each has an end for gripping the pins, said gripping ends being of rhomboid shape.
Claim 18
Dependent Claim
31 words
An apparatus according to claim 1 wherein the contact cover plate and the clamping cover plate each has an end for gripping the pins, said gripping ends being of rhomboid shape.
Claim 19
Dependent Claim
31 words
An apparatus according to claim 1 wherein the contact cover plate and the clamping cover plate each has an end for gripping the pins, said gripping ends being of rhomboid shape.
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) | 1986-09-19 | 1987-03-21 | 1987-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-19 | 1991-03-21 | 1991-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-19 | 1995-03-21 | 1995-09-20 | $7700.00 | Window Closed / Lapsed |