Patent US5079567A successfully refreshed from Google Patents.
US5079567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leaf-spring assembly for LED printhead
Assignee: NexPress Solutions LLC
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Filing: 1991-03-04
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Granted: 1992-01-07
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Expires: 2011-03-04
Abstract
Abstract A non-impact printhead such as an LED printhead includes a plurality of modular circuit assemblies, each including a plurality of recording elements and associated integrated circuit drivers. Each modular circuit assembly is mounted upon a tile. Rails are attached to the underside of the tiles to join the tiles together. A heatsink supports the tiles. The tiles are urged into engagement with the heatsink by cantilevered leaf springs.
Inventors
- 👤 Bryan A. Beaman
- 👤 Richard N. Capobianco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:59
CPC Classifications
H; H10; H10H; H10H20/00; H10H20/80; H10H20/85; H10H20/858; B; B41; B41J; B41J2/00; B41J2/435; B41J2/447; B41J2/45
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
97 words
A non-impact printhead assembly, comprising: a plurality of modular circuit assemblies each including a plurality of recording elements and associated integrated circuit drivers; a plurality of circuit assembly mounting tiles; a rail mounted to said tiles, the rail including a slot; a heatsink for supporting the tiles; an elongated resilient strip having one elongated edge located within the slot; and means for engaging a second elongated edge of the strip to support the strip as a cantilever; the strip being resiliently under stress in the slot to urge the tile into intimate thermal coupling with the heatsink.
Claim 2
Dependent Claim
97 words
A non-impact printhead assembly, comprising: a plurality of modular circuit assemblies each including a plurality of recording elements and associated integrated circuit drivers; a plurality of circuit assembly mounting tiles; a rail mounted to said tiles, the rail including a slot; a heatsink for supporting the tiles; an elongated resilient strip having one elongated edge located within the slot; and means for engaging a second elongated edge of the strip to support the strip as a cantilever; the strip being resiliently under stress in the slot to urge the tile into intimate thermal coupling with the heatsink.
Claim 3
Dependent Claim
31 words
The printhead assembly of claim 1 and wherein a plurality of rails are mounted to the tiles and wherein each rail includes a slot for resiliently engaging an elongated resilient strip.
Claim 4
Dependent Claim
23 words
The printhead assembly of claim 2 and including a cover member having a pair of upstanding walls between which the heatsink is located.
Claim 5
Dependent Claim
23 words
The printhead assembly of claim 2 and wherein the elongated strip is supported as a cantilever between an upstanding wall and the heatsink.
Claim 6
Dependent Claim
18 words
The printhead assembly of claim 4 and wherein the rails are mounted to the tiles by an adhesive.
Claim 7
Dependent Claim
14 words
The printhead assembly of claim 5 and wherein the recording elements are light-emitting diodes.
Claim 8
Dependent Claim
14 words
The printhead assembly of claim 1 and wherein the recording elements are light-emitting diodes.
Claim 9
Dependent Claim
59 words
A non-impact printhead assembly, comprising: a plurality of modular circuit assemblies each including a plurality of recording elements and associated integrated circuit drivers; a plurality of circuit assembly mounting tiles; a rail mounted to said tiles, a heatsink for supporting the tiles; and means engaging the rail for resiliently urging the tiles into intimate thermal coupling with the heatsink.
Claim 10
Dependent Claim
59 words
A non-impact printhead assembly, comprising: a plurality of modular circuit assemblies each including a plurality of recording elements and associated integrated circuit drivers; a plurality of circuit assembly mounting tiles; a rail mounted to said tiles, a heatsink for supporting the tiles; and means engaging the rail for resiliently urging the tiles into intimate thermal coupling with the heatsink.
Claim 11
Dependent Claim
47 words
The printhead assembly of claim 8 and wherein the rail includes a slot and the means for engaging the rail includes a cantilevered leaf spring having one end located in the slot and a second end supported between a wall of a cover member and the heatsink.
Claim 12
Dependent Claim
14 words
The printhead assembly of claim 8 and wherein the recording elements are light-emitting diodes.
Claim 13
Dependent Claim
23 words
The printhead assembly of claim 8 and wherein a leaf spring is mounted to said rail and cantileveredly extends to engage the heatsink.
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) | 1995-01-06 | 1995-07-08 | 1996-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-06 | 1999-07-08 | 2000-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-06 | 2003-07-08 | 2004-01-07 | $7700.00 | Window Closed / Lapsed |