Patent US3978749A successfully refreshed from Google Patents.
US3978749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting device for coated plates
Assignee: Hoechst AG
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Filing: 1975-11-17
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Granted: 1976-09-07
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Expires: 1995-11-17
Abstract
Abstract This invention relates to a cutting device for coated plates comprising frame means, First stationary cover plate means on said frame means, Second movable cover plate means on said frame means, Heatable knife means adapted to be displaced along one edge of said first stationary cover plate means between said first and second cover plate means, Carriage means below said cover plate means for supporting said knife means, And means for displacing said carriage means and said knife means supported thereby.
Inventors
- 👤 Walther Polenz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:52
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/0011; H05K3/0044; H05K3/0052; B; B26; B26D; B26D1/00; B26D1/01; B26D1/04; B26D5/00; B26F; B26F3/00; B26F3/06; B26F3/08; H05K2203/00; H05K2203/02; H05K2203/0228; H05K3/0097; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2066; Y10T83/207; Y10T83/263; Y10T83/283; Y10T83/293; Y10T83/444; Y10T83/4443; Y10T83/748; Y10T83/7593; Y10T83/7607; Y10T83/7613; Y10T83/869; Y10T83/8821; Y10T83/8822; Y10T83/889
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
77 words
A cutting device for coated plates comprising frame means, first stationary cover plate means on said frame means, second movable cover plate means on said frame means, heatable knife means adapted to be displaced along one edge of said first stationary cover plate means between said first and second cover plate means, carriage means below said cover plate means for supporting said knife means, and means for displacing said carriage means and said knife means supported thereby.
Claim 2
Dependent Claim
77 words
A cutting device for coated plates comprising frame means, first stationary cover plate means on said frame means, second movable cover plate means on said frame means, heatable knife means adapted to be displaced along one edge of said first stationary cover plate means between said first and second cover plate means, carriage means below said cover plate means for supporting said knife means, and means for displacing said carriage means and said knife means supported thereby.
Claim 3
Dependent Claim
17 words
A device according to claim 1 including suction means mounted above said knife means and displaceable therewith.
Claim 4
Dependent Claim
22 words
A device according to claim 1 in which said knife means has two cutting edges, whereby it can cut in two directions.
Claim 5
Dependent Claim
29 words
A device according to claim 1 including a first guide means below said first stationary cover plate means along which guide means said carriage means is adapted to move.
Claim 6
Dependent Claim
32 words
A device according to claim 4 including second guide means below and parallel to said first guide means, said second guide means being adapted to support guide pulleys on said carriage means.
Claim 7
Dependent Claim
14 words
A device according to claim 5 in which said guide means are guide shafts.
Claim 8
Dependent Claim
54 words
A device according to claim 1 including stop bar means near a longitudinal edge of said frame means, guide plate means attached to one end of said stop bar means, resting against an edge of said first stationary cover plate means, and being guided by said edge when said stop bar means is displaced.
Claim 9
Dependent Claim
52 words
A device according to claim 7 including slot means in said first stationary cover plate means and extending parallel to edges of said cover plate means, fixing screw means extending through said slot means and engaging said stop bar means and guide block means on the underside of said cover plate means.
Claim 10
Dependent Claim
30 words
A device according to claim 8 including first switch means mounted at said guide block means, said switch means being adapted to be actuated during displacement of said carriage means.
Claim 11
Dependent Claim
44 words
A device according to claim 1 including screw means passing through walls of said frame and through grooves in ledges of said second movable cover plate means resting against said walls, whereby the position of said second movable cover plate means may be adjusted.
Claim 12
Dependent Claim
17 words
A device according to claim 1 including bottom plate means below said first stationary cover plate means.
Claim 13
Dependent Claim
65 words
A device according to claim 1 including means for operating said cutting device, said circuit comprising auto-transformer means adapted to be switched on and off via a relay and serving for preheating said knife means, said relay being connected in series with a second switch attached to said frame means and with a two-way switch at one of two terminals of a mains voltage supply.
Claim 14
Dependent Claim
34 words
A device according to claim 1 including control unit means adapted to supply D.C. voltage to motor means adapted to displace said carriage means, and also to supply control voltage to an overload relay.
Claim 15
Dependent Claim
108 words
A device according to claim 1 including control unit means adapted to supply D.C. voltage to an armature winding coil of a motor means adapted to displace said carriage means, and means whereby said voltage supply can be selectively connected with two pairs of contacts of an overload relay, depending upon the position of said relay, said contacts applying, in the open and closed positions thereof, a D.C. voltage of alternating polarity to said armature winding coil of said motor means connected to the output of the overload relay, whereby the sense of rotation of said motor means changes with each switching over of said pairs of contacts.
Claim 16
Dependent Claim
59 words
A device according to claim 1 including a first wire connecting a contact of a two-way switch with a second switch and with a timing relay with an adjustable delay time, said timing relay being adapted to open and close a relay contact in an interconnection leading to a control unit and controlling the current to said control unit.
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) | 1979-09-07 | 1980-03-08 | 1980-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-07 | 1984-03-08 | 1984-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-07 | 1988-03-08 | 1988-09-07 | $7700.00 | Window Closed / Lapsed |