US3743073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Print head shifting mechanism
Assignee: TRIUMPH-ADLER AG A CORP OF GERMANY
•
Filing: 1970-11-02
•
Granted: 1973-07-03
•
Expires: 1990-11-02
Abstract
Abstract An electromagnetically controlled shifting mechanism for aligning one of a plurality of type bands with a printing position. The shifting mechanism includes selectively energizable electromagnets that attract a pivotably mounted linkage which is connected to the shaft which supports the print head. The electromagnets are located two above and two below the linkage so that by the energization of various combinations of the electromagnets the print head can be shifted between the four horizontal printing bands.
Inventors
- 👤 G Perez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:25
CPC Classifications
B; B41; B41J; B41J7/00; B41J7/54; B41J7/56; B41J7/60
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
190 words
A device for shifting a print member between a plurality of type bands comprising: a print member having a plurality of print bands, a support member, a first member connected to said print member mounted to shift said print member between said type bands, a second member pivotably connected to said first member and to said support member, a third member pivotably connected to said first member and to said support member so that said second and third members can pivot with respect to said support member and thereby shift said first member, said second and third members each having one end which is proximate to each other and each having another end which is distal each other, said second and third members being mounted so that their ends proximate each other are respectively pivotably affixed to said support member and their ends distal each other are pivotably connected to said first member, and a plurality of electromagnets mounted to attract said second and third members and thereby cause them to pivot about said support member and thereby cause said first member to shift from one type band to another.
Claim 2
Independent Claim
190 words
A device for shifting a print member between a plurality of type bands comprising: a print member having a plurality of print bands, a support member, a first member connected to said print member mounted to shift said print member between said type bands, a second member pivotably connected to said first member and to said support member, a third member pivotably connected to said first member and to said support member so that said second and third members can pivot with respect to said support member and thereby shift said first member, said second and third members each having one end which is proximate to each other and each having another end which is distal each other, said second and third members being mounted so that their ends proximate each other are respectively pivotably affixed to said support member and their ends distal each other are pivotably connected to said first member, and a plurality of electromagnets mounted to attract said second and third members and thereby cause them to pivot about said support member and thereby cause said first member to shift from one type band to another.
Claim 3
Dependent Claim
77 words
The device of claim 1 wherein said second and third members are mounted so that the electromagnets are positioned on each side of said second member and each side of said third member and proximate the pivotial connection of said second and third members respectively to said first member so that said second and third members may be attracted to said electromagnets to thereby shift the position of said first member and thereby shift the print member.
Claim 4
Dependent Claim
17 words
The device of claim 2 wherein said second and third member are constructed of magnetically attractable material.
Claim 5
Dependent Claim
30 words
The device of claim 3 wherein in a normal position wherein said electromagnets are unactuated said second and third member and said first member are essentially in the same plane.
Claim 6
Dependent Claim
26 words
The device of claim 4 wherein springs are provided between said second and third members and said support member respectively to aid in said shifting movement.
Claim 7
Dependent Claim
77 words
The device of claim 5 wherein said print member has four type bands, highest to lowest, thereon and wherein the actuation of said electromagnets on one side, a first side, of said second member and on an opposite side, a second side, of said third member causes said first member to shift said print head into a position wherein said print head is in a highest position and the lowest type band is in a printing position.
Claim 8
Dependent Claim
68 words
The device of claim 6 wherein the actuation of said electromagnets on one side, a first side, of said second member and on the same side, a first side, of said third member causes said first member to shift said print head into a position wherein said print head is in a next to hiGhest position and the next to lowest type band is in a printing position.
Claim 9
Dependent Claim
62 words
The device of claim 7 wherein the actuation of said electromagnets on a second side of said second member and on said second side of said third member cause said first member to shift said print head into a position wherein said print head is in a next to lowest position and the next to highest type band is in printing position.
Claim 10
Dependent Claim
58 words
The device of claim 8 wherein the actuation of said electromagnets on the first side of said second member and on said second side of said third member cause said first member to shift said print head into a position wherein said print head is in a lowest portion and the highest type band is in printing position.
Claim 11
Independent Claim
203 words
A device for shifting a print member between a plurality of type bands comprising: a print member having four type bands, a support member, a first member connected to said print member mounted to shift said print member between said type bands, a second member pivotably connected to said first member and to said support member, for movement in a first plane, a third member pivotably connected to said first member and to said support member, for movement in said first plane, so that said second and third members can pivot with respect to said support member in the same plane and thereby shift said first member, and a plurality of electromagnets mounted to attract said second and third members and thereby cause them to pivot about said support member and thereby cause said first member to shift from one type band to another, including two pair of opposed electromagnets, a first pair of opposed springs connected to said second member and coplanar with said first plane for normally equally biasing the same in opposite directions, and a second pair of opposed springs connected to said third member and coplanar with said first plane for normally equally biasing the same in opposite directions.
Claim 12
Independent Claim
203 words
A device for shifting a print member between a plurality of type bands comprising: a print member having four type bands, a support member, a first member connected to said print member mounted to shift said print member between said type bands, a second member pivotably connected to said first member and to said support member, for movement in a first plane, a third member pivotably connected to said first member and to said support member, for movement in said first plane, so that said second and third members can pivot with respect to said support member in the same plane and thereby shift said first member, and a plurality of electromagnets mounted to attract said second and third members and thereby cause them to pivot about said support member and thereby cause said first member to shift from one type band to another, including two pair of opposed electromagnets, a first pair of opposed springs connected to said second member and coplanar with said first plane for normally equally biasing the same in opposite directions, and a second pair of opposed springs connected to said third member and coplanar with said first plane for normally equally biasing the same in opposite directions.
Claim 13
Independent Claim
143 words
A device for shifting a print member between a plurality of type bands comprising: a print member, a support member, a first member connected to said print member mounted to shift said print member between said type bands, a second member connected to said first member and to said support member for limited arcuate movement, a third member connected to said first member and to said support member for limited arcuate movement, said second and third members being moveable with respect to said support member to thereby shift said first member, moveable with respect to said support member, and wherein one end of each of said second and third members being connected to said support solely through said first member, and a plurality of electromagnets mounted to attract said second and third members and thereby cause them to move about said support member.
Claim 14
Independent Claim
143 words
A device for shifting a print member between a plurality of type bands comprising: a print member, a support member, a first member connected to said print member mounted to shift said print member between said type bands, a second member connected to said first member and to said support member for limited arcuate movement, a third member connected to said first member and to said support member for limited arcuate movement, said second and third members being moveable with respect to said support member to thereby shift said first member, moveable with respect to said support member, and wherein one end of each of said second and third members being connected to said support solely through said first member, and a plurality of electromagnets mounted to attract said second and third members and thereby cause them to move about said support member.
References Cited (Backward Citations)
US1548168A
Cited
US1714334A
Cited
US2680970A
Cited
US2939912A
Cited
US3465329A
Cited
US3461996A
Cited
US3517124A
Cited
US3608692A
Cited
US3605978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |