US3783780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intaglio print machine with novel roll mounting mandrel and bushing assembly
Assignee: Individual
•
Filing: 1973-03-08
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Granted: 1974-01-08
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Expires: 1993-03-08
Abstract
Abstract An intaglio print machine for multicolor operation has a multiplicity of pairs of cooperating intaglio rolls and back up rolls rotatably supported on the machine frame and a vertical gate member pivotally mounted on the frame with a multplicity of inking units suppored thereon in vertical spaced alignment and cooperating with the intaglio rolls. The intaglio rolls are of cylindrical configuration and supported upon the frameby novel cone assemblies and novel expandable bushings which press fit in the ends of the cylindrical rolls and are engaged to prevent relative rotation.
Inventors
- 👤 J Saueressig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:49
CPC Classifications
B; B41; B41F; B41F13/00; B41F13/02; B41F13/025; B41F13/06; B41F31/00; B41F31/02; B41F9/00; B41F9/02; B41F9/023; B41F9/026
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
144 words
In a print machine, the combination comprising: a. a generally cylindrical roll shell; b. split bushing members engaged in each end thereof, said split bushing members each being comprised of at least three arcuate segments having circumferential surface portions cooperating to define a generally circular circumferential configuration and the inner surfaces of which are configured to define a generally frustoconical cavity, and resilient means holding said segments in generally circular circumferential disposition and permitting expansion thereof to increase the diameter of the circular cross section defined thereby; c. mandrel members having generally frustoconical circumferential portions cooperatively configured and engaged within said generally frustoconical cavities of said bushing members, said mandrel members expanding the segments of said bushing members into firm press fitting engagement with the inner surface of said roll shell; and d. means engaging said bushing and mandrel members to prevent relative rotation.
Claim 2
Dependent Claim
144 words
In a print machine, the combination comprising: a. a generally cylindrical roll shell; b. split bushing members engaged in each end thereof, said split bushing members each being comprised of at least three arcuate segments having circumferential surface portions cooperating to define a generally circular circumferential configuration and the inner surfaces of which are configured to define a generally frustoconical cavity, and resilient means holding said segments in generally circular circumferential disposition and permitting expansion thereof to increase the diameter of the circular cross section defined thereby; c. mandrel members having generally frustoconical circumferential portions cooperatively configured and engaged within said generally frustoconical cavities of said bushing members, said mandrel members expanding the segments of said bushing members into firm press fitting engagement with the inner surface of said roll shell; and d. means engaging said bushing and mandrel members to prevent relative rotation.
Claim 3
Dependent Claim
38 words
The print machine of claim 1 wherein said engaging means comprises keyways in the inner surface of each segment of said split bushing members and in the cooperating outer surfaces of said mandrel members; and keys seated therein.
Claim 4
Dependent Claim
23 words
bushing members engaged in each end thereof having a cavity therein of generally frustoconical configuration of greatest diameter at the outer ends thereof;
Claim 5
Dependent Claim
23 words
bushing members engaged in each end thereof having a cavity therein of generally frustoconical configuration of greatest diameter at the outer ends thereof;
Claim 6
Dependent Claim
34 words
In a print machine, the combination comprising: a. a machine frame; b. a multiplicity of rolls rotatably supported on said frame; c. drive means for rotating said rolls, said rolls each being comprised of:
Claim 7
Dependent Claim
34 words
In a print machine, the combination comprising: a. a machine frame; b. a multiplicity of rolls rotatably supported on said frame; c. drive means for rotating said rolls, said rolls each being comprised of:
Claim 8
Dependent Claim
38 words
mandrel members having generally frustoconical portions engaged within said frustoconical cavities of said bushing members, the bushing and mandrel members of said rolls having cooperating keyways in their opposing surfaces and keys seated therein to prevent relative rotations;
Claim 9
Dependent Claim
38 words
mandrel members having generally frustoconical portions engaged within said frustoconical cavities of said bushing members, the bushing and mandrel members of said rolls having cooperating keyways in their opposing surfaces and keys seated therein to prevent relative rotations;
Claim 10
Dependent Claim
71 words
a pair of shaft elements mounted on said machine frame; one of said shaft elements being fixedly engaged with its associated mandrel member and the other of said shaft elements being seated within an elongated outwardly opening cavity in its associated mandrel member, said cavity having series of surface portions cooperating with surface portions on the end portion of said shaft element disposed therein to provide a plurality of seats; and
Claim 11
Dependent Claim
71 words
a pair of shaft elements mounted on said machine frame; one of said shaft elements being fixedly engaged with its associated mandrel member and the other of said shaft elements being seated within an elongated outwardly opening cavity in its associated mandrel member, said cavity having series of surface portions cooperating with surface portions on the end portion of said shaft element disposed therein to provide a plurality of seats; and
Claim 12
Dependent Claim
33 words
The print machine of claim 3 wherein said surface portions of said shaft element and said mandrel member are provided by a series of steps of decreasing diameter inwardly of said roll shell.
Claim 13
Dependent Claim
85 words
a plurality of bearing elements disposed on said seats between said shaft element and said mandrel member, said bearing elements including a bearing element providing for compensation of relative thrust between said shaft elements and said mandrel member; d. bearing means on said frame for said one shaft element of each roll, said one shaft element being engaged with said drive means for rotation thereof and thereby said roll shell; and e. support means on said frame for said other shaft element of each roll.
Claim 14
Dependent Claim
85 words
a plurality of bearing elements disposed on said seats between said shaft element and said mandrel member, said bearing elements including a bearing element providing for compensation of relative thrust between said shaft elements and said mandrel member; d. bearing means on said frame for said one shaft element of each roll, said one shaft element being engaged with said drive means for rotation thereof and thereby said roll shell; and e. support means on said frame for said other shaft element of each roll.
Claim 15
Dependent Claim
20 words
The print machine of claim 3 wherein said bearing elements include ball bearing means and angular contact roller bearing means.
Claim 16
Dependent Claim
16 words
The print machine of claim 5 wherein said bearing means also include needle roller bearing means.
Claim 17
Dependent Claim
120 words
The print machine of claim 3 wherein said bushing members are split bushing members each being comprised of at least three arcuate segments having circumferential surface portions cooperating to define a generally circular circumferentIal configuration and the inner surfaces of which are configured to define a generally frustoconical cavity, and resilient means holding said segments in generally circular circumferential disposition and permitting expansion to increase the diameter of the circular cross section defined thereby, said mandrel members expanding the segments of said bushing members into firm press fitting engagement with the inner surface of said roll shell, each of said bushing member segments having a keyway therein cooperating with a keyway on said mandrel; and keys seated in said keyways.
Claim 18
Dependent Claim
22 words
The print machine of claim 7 wherein said keys are removeably engaged in the keyways of said mandrel members by threaded fasteners.
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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |