US3698528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compact print head assembly with antirebounding means
Assignee: NCR Voyix Corp
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Filing: 1970-04-03
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Granted: 1972-10-17
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Expires: 1990-04-03
Abstract
Abstract A printing bar arrangement for high-speed operation wherein the bars are slidably nested and supported in relation to one another and include tip portions capable of printing alpha-numeric characters upon precise striking of one or more of the separate bars. The printing bars are fixedly connected to blocks, also slidably nested, which blocks are positioned to be driven by appropriate solenoid mechanism wherein the coupling forces derived from an offset drive line are absorbed within the blocks to provide an even and parallel operation of the printing bars.
Inventors
- 👤 Peter H De Graff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:56
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/485; B41J2/50; G; G06; G06K; G06K15/00; G06K15/02; G06K15/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
228 words
A compact print head assembly comprising a plurality of block members juxtaposed and individually slidable and bearing on adjacent members in parallel maNner with respect to each other, a plurality of nested printing elements each secured to a respective block member and slidable parallel therewith from a non-printing position to a printing position and returnable to the non-printing position, each block member and its respective printing element forming a member-element assembly, solenoid means for selectively actuating each member-element assembly from the non-printing position to the printing position in a line parallel with the path of movement of the printing elements, a centrally-positioned printing element surrounded by and in contact with adjacent printing elements, means for actuating said centrally-positioned printing element wherein said means for actuating said centrally-positioned element is aligned with said centrally-positioned element, and spring means aligned with the path of movement of the solenoid actuating means for retaining the members and elements in a non-printing position and for restoring the members and elements from the printing position to the non-printing position after actuation thereof, the center of gravity of each member-element assembly being offset from the path of movement of its actuating means and its retaining and restoring means, each of the member-element assemblies being in contact with adjacent member-element assemblies to effectively prevent rebounding of the assemblies from the non-printing position toward the printing position.
Claim 2
Dependent Claim
228 words
A compact print head assembly comprising a plurality of block members juxtaposed and individually slidable and bearing on adjacent members in parallel maNner with respect to each other, a plurality of nested printing elements each secured to a respective block member and slidable parallel therewith from a non-printing position to a printing position and returnable to the non-printing position, each block member and its respective printing element forming a member-element assembly, solenoid means for selectively actuating each member-element assembly from the non-printing position to the printing position in a line parallel with the path of movement of the printing elements, a centrally-positioned printing element surrounded by and in contact with adjacent printing elements, means for actuating said centrally-positioned printing element wherein said means for actuating said centrally-positioned element is aligned with said centrally-positioned element, and spring means aligned with the path of movement of the solenoid actuating means for retaining the members and elements in a non-printing position and for restoring the members and elements from the printing position to the non-printing position after actuation thereof, the center of gravity of each member-element assembly being offset from the path of movement of its actuating means and its retaining and restoring means, each of the member-element assemblies being in contact with adjacent member-element assemblies to effectively prevent rebounding of the assemblies from the non-printing position toward the printing position.
Claim 3
Dependent Claim
232 words
A compact print head assembly for a serial type printer, comprising a housing, a plurality of block members nested in said housing and adapted to be selectively slidable a predetermined distance, a plurality of printing bars, each of said bars being secured to a respective block member and each of the printing bars having a tip portion arranged in a manner to form a printed character upon the movement of two or more bars along a predetermined path from a non-printing position to a printing position, said bars being in contact with adjacent bars along said path, means within the housing and engaging the block members for retaining the printing bars in a non-printing position and for restoring said bars from a printing position to a non-printing position, means for selectively actuating the printing bars from a non-printing position to a printing position, said actuating means including solenoid elements movable to provide a line of drive aligned with said retaining and restoring means and offset therefrom and parallel to the path of movement of the printing bars, said block members bearing on adjacent members to absorb unbalanced forces by reason of the offset in the drive line from the actuating elements to the printing bars, and a central printing bar surrounded by said plurality of printing bars, and central printing bar actuating and restoring means in line with said central printing bar.
Claim 4
Dependent Claim
232 words
A compact print head assembly for a serial type printer, comprising a housing, a plurality of block members nested in said housing and adapted to be selectively slidable a predetermined distance, a plurality of printing bars, each of said bars being secured to a respective block member and each of the printing bars having a tip portion arranged in a manner to form a printed character upon the movement of two or more bars along a predetermined path from a non-printing position to a printing position, said bars being in contact with adjacent bars along said path, means within the housing and engaging the block members for retaining the printing bars in a non-printing position and for restoring said bars from a printing position to a non-printing position, means for selectively actuating the printing bars from a non-printing position to a printing position, said actuating means including solenoid elements movable to provide a line of drive aligned with said retaining and restoring means and offset therefrom and parallel to the path of movement of the printing bars, said block members bearing on adjacent members to absorb unbalanced forces by reason of the offset in the drive line from the actuating elements to the printing bars, and a central printing bar surrounded by said plurality of printing bars, and central printing bar actuating and restoring means in line with said central printing bar.
Claim 5
Dependent Claim
162 words
Printing apparatus comprising a housing, a plurality of bearing blocks each individually slidably contained within the housing and supported by adjacent blocks for parallel operation thereof, a plurality of print bars secured to respective bearing blocks, the bars occupying a centralized area in nested relationship therein and slidably contacting adjacent bars for parallel operation thereof, and said bars having tip portions extending through the housing and adaptable to be moved in a path from a non-printing position to a printing position, resilient means for retaining the bearing blocks and the print bars in a non-printing position and for restoring the bearing blocks and the print bars from a printing position to a non-printing position, and means for selectively driving the print bars from a non-printing position to a printing position, said driving means being on a plane aligned with the resilient means and driving along a line of drive offset from and parallel with the path of movement of the print bars.
Claim 6
Dependent Claim
162 words
Printing apparatus comprising a housing, a plurality of bearing blocks each individually slidably contained within the housing and supported by adjacent blocks for parallel operation thereof, a plurality of print bars secured to respective bearing blocks, the bars occupying a centralized area in nested relationship therein and slidably contacting adjacent bars for parallel operation thereof, and said bars having tip portions extending through the housing and adaptable to be moved in a path from a non-printing position to a printing position, resilient means for retaining the bearing blocks and the print bars in a non-printing position and for restoring the bearing blocks and the print bars from a printing position to a non-printing position, and means for selectively driving the print bars from a non-printing position to a printing position, said driving means being on a plane aligned with the resilient means and driving along a line of drive offset from and parallel with the path of movement of the print bars.
Claim 7
Dependent Claim
178 words
A compact print head assembly for making impressions And forming characters of the alpha-numeric system, comprising a housing, a plurality of generally rectangular bearing blocks contained therein and slidably contacting adjacent blocks for parallel operation and individually slidable a predetermined distance, a plurality of print bars, each print bar being secured to a bearing block adjacent one side and having a tip portion extending through the housing, said print bars being carried in contacting relationship by said bearing blocks and adapted to be individually slidable the predetermined distance from a non-printing position to a printing position, resilient members in said housing for urging the bearing blocks and the print bars to the non-printing position, said resilient members contacting said bearing blocks at a point adjacent a side opposite to the side to which the print bars are secured, and a plurality of solenoids supported from the housing and having drive means connected with the bearing blocks and aligned with said resilient members for driving the print bars in selective manner from the non-printing position to the printing position.
Claim 8
Dependent Claim
178 words
A compact print head assembly for making impressions And forming characters of the alpha-numeric system, comprising a housing, a plurality of generally rectangular bearing blocks contained therein and slidably contacting adjacent blocks for parallel operation and individually slidable a predetermined distance, a plurality of print bars, each print bar being secured to a bearing block adjacent one side and having a tip portion extending through the housing, said print bars being carried in contacting relationship by said bearing blocks and adapted to be individually slidable the predetermined distance from a non-printing position to a printing position, resilient members in said housing for urging the bearing blocks and the print bars to the non-printing position, said resilient members contacting said bearing blocks at a point adjacent a side opposite to the side to which the print bars are secured, and a plurality of solenoids supported from the housing and having drive means connected with the bearing blocks and aligned with said resilient members for driving the print bars in selective manner from the non-printing position to the printing position.
Claim 9
Dependent Claim
209 words
A print head assembly comprising a housing, a plurality of bearing blocks slidably contained and nested within the housing and slidably contacting adjacent blocks for parallel operation thereof, a plurality of print bars secured to the bearing blocks, the print bars being secured adjacent one side of each bearing block and being nested together and selectively movable along a path from a non-printing position to a printing position and each of said print bars having a tip portion for impressing a mark in the printing position, spring means within the housing and engaging the bearing blocks adjacent a side opposite the side to which the print bar is secured for retaining the print bars in the non-printing position, and solenoid means aligned with the spring means for selectively actuating the print bars to the printing position by exerting a driving force for driving the bearing blocks and the print bars in a line parallel with the line of movement of the actuating means, said line of movement of the actuating means being offset from the path of the print bars, and said driving force being directed within and through the bearing blocks along a path in line with the actuating means and then offset therefrom to the print bars.
Claim 10
Dependent Claim
209 words
A print head assembly comprising a housing, a plurality of bearing blocks slidably contained and nested within the housing and slidably contacting adjacent blocks for parallel operation thereof, a plurality of print bars secured to the bearing blocks, the print bars being secured adjacent one side of each bearing block and being nested together and selectively movable along a path from a non-printing position to a printing position and each of said print bars having a tip portion for impressing a mark in the printing position, spring means within the housing and engaging the bearing blocks adjacent a side opposite the side to which the print bar is secured for retaining the print bars in the non-printing position, and solenoid means aligned with the spring means for selectively actuating the print bars to the printing position by exerting a driving force for driving the bearing blocks and the print bars in a line parallel with the line of movement of the actuating means, said line of movement of the actuating means being offset from the path of the print bars, and said driving force being directed within and through the bearing blocks along a path in line with the actuating means and then offset therefrom to the print bars.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |