Patents
US 8821049 B2: Electrically-assisted mechanical braille writer
- Granted
- 2014-09-02
- Filed
- 2011-08-05 application 13204394
- Type
- Utility · 15 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An electrically-assisted mechanical Braille writer includes a main solenoid to apply force to emboss Braille onto a printing medium, and advance an embossing mechanism to the next cell. A second solenoid engages a mechanical stop to prevent one or more embossing keys from being fully depressed, to prevent kickback from the keys mechanically coupling to the main solenoid. In unpowered operation, the mechanical stop is disengaged, and the embossing keys may be fully depressed to apply force to emboss Braille and advance the embossing mechanism. Accordingly, with electrical power, the user may supply a lesser amount of force and still fully emboss Braille cells, while without electrical power, the Braille writer remains fully operational.
Source: PVGPATDIS, file of 2026-04-10 (ipg140902.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Perkins School for the Blind 8 patents | US company or organization | Watertown, MA | PERKINS SCHOOL FOR THE BLIND Federal lobbying client EXACT high confidence: identical full name and state PERKINS SCHOOL FOR THE BLIND Nonprofit EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Michael Schmidt | Bedford, MA | 59 | PVGPATDIS, file of 2026-04-10 | |
| Jude Royston Jonas | Waltham, MA | 34 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B41J | Typewriters; selective printing mechanisms, i.e. mechanisms printing otherwise than from a forme; correction of typographical errors | B41J3/32 | PVGPATDIS, file of 2026-04-10 |
| G06F | Electric digital data processing | G06F3/02 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2011-08-08 | Assignment Assignment of assignor's interest | JONAS, JUDE signed 2011-08-05 SCHMIDT, MICHAEL signed 2011-08-05 | PERKINS SCHOOL FOR THE BLIND WATERTOWN, MA | 26714/414 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.