US3613532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ray typewriter
Assignee: Individual
•
Filing: 1969-05-01
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Granted: 1971-10-19
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Expires: 1989-05-01
Abstract
Abstract This ray typewriter has two main applications. It may serve as a computer output to rapidly produce small-size photographic copies, or also as a typewriter operated by hand from a keyboard. Each type has its own source of radiant energy that is directed through an outlet representing the type. Said sources are arranged in an arc about a common point and their rays are directed towards said point. When activated, images of said outlets are made in a common region containing said point. In a computer output said successive images are reduced in size and placed along lines on a record. In a manually operated typewriter they are directly printed on the record.
Inventors
- 👤 Ernest Wildhaber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:35
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/435; B41J2/465; B41J2/4655
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
83 words
A ray typewriter, comprising a plurality of sources of radiant energy disposed in an arc about a common region, a different formed outlet in operative relation with each of said sources, each of said outlets having the shape of a type representing a character, means for successively and selectively projecting radiation from said sources through said outlets in converging directions to obtain images of said types at a common region, and means for placing the type images on a record along a line.
Claim 2
Dependent Claim
83 words
A ray typewriter, comprising a plurality of sources of radiant energy disposed in an arc about a common region, a different formed outlet in operative relation with each of said sources, each of said outlets having the shape of a type representing a character, means for successively and selectively projecting radiation from said sources through said outlets in converging directions to obtain images of said types at a common region, and means for placing the type images on a record along a line.
Claim 3
Dependent Claim
55 words
A ray typewriter according to claim 1, wherein a light-pipe of changing cross section is placed adjacent each course of radiant energy, having different areas at opposite ends, the large end of said light-pipe being closer to said source than its small end, said small end containing one of said formed outlets representing a character.
Claim 4
Dependent Claim
19 words
A ray typewriter according to claim 2, wherein said light-pipes have noncircular cross sections that are higher than wide.
Claim 5
Dependent Claim
29 words
A ray typewriter according to claim 2, wherein the formed character outlets are projections emerging from the solid light-pipe body at an included taper of less than 30 degrees.
Claim 6
Dependent Claim
17 words
A ray typewriter according to claim 1, wherein the source of radiant energy is an electron gun.
Claim 7
Dependent Claim
32 words
A ray typewriter according to claim 1, wherein a lens surface of a refractory part lies between each of said outlets and said common region, said lens surface being higher than wide.
Claim 8
Dependent Claim
47 words
A ray typewriter according to claim 6, wherein said lens surface is a cylindrical surface, a plurality of individual parallel cylindrical surfaces being formed on a common refractory part, said individual cylindrical surfaces being accompanied by a surface of circular profiled extending crosswise of said cylindrical surfaces.
Claim 9
Dependent Claim
28 words
A ray typewriter according to claim 1, wherein a refractory member is placed at said common region to receive said images, said member having a diffusing image surface.
Claim 10
Dependent Claim
107 words
A ray typewriter, comprising a plurality of sources of radiant energy, a different formed outlet in operative relation with each of said sources, each of said outlets having the shape of a type representing a character, means for successively and selectively projecting radiation from said sources through said type outlets in converging directions to a common point, refractory means interposed in the path of radiation to said point to obtain images of sad types at said point, a diffusing member placed to receivE said images, a pair of rotors for projecting said images in displaced positions forming a line on a record, said rotors containing light-directing means.
Claim 11
Dependent Claim
107 words
A ray typewriter, comprising a plurality of sources of radiant energy, a different formed outlet in operative relation with each of said sources, each of said outlets having the shape of a type representing a character, means for successively and selectively projecting radiation from said sources through said type outlets in converging directions to a common point, refractory means interposed in the path of radiation to said point to obtain images of sad types at said point, a diffusing member placed to receivE said images, a pair of rotors for projecting said images in displaced positions forming a line on a record, said rotors containing light-directing means.
Claim 12
Dependent Claim
28 words
A ray typewriter according to claim 9, wherein said pair of rotors are coaxial and timed to run at different rotational speeds, said rotors containing refractory light-directing means.
Claim 13
Dependent Claim
27 words
A ray typewriter according to claim 9, wherein said rotors are coaxial and contain refractory means of different strength, the outer rotor containing the stronger refractory means.
Claim 14
Dependent Claim
38 words
A ray typewriter according to claim 9, wherein a stationary refractory means is interposed in the path of light coming from said rotors, said means having a focal distance approximately equal to its distance from the rotor axis.
Claim 15
Dependent Claim
33 words
A ray typewriter according to claim 12, wherein the profile of said refractory means is convex on the side facing away from said rotor axis and more curved than on the opposite side.
Claim 16
Dependent Claim
74 words
A ray typewriter according to claim 1, wherein the sources of radiant energy are electron guns aimed at a common point, each gun facing an anode containing a type-shaped outlet, deflection coils creating magnetic fields are set transversely of the electron streams, for placing the projected type-images along a central line of said common region, a light-emissive diffusing layer at said line, and means for projecting said type-images at reduced size to a record.
Claim 17
Dependent Claim
27 words
A ray typewriter according to claim 14, wherein said magnetic field acting on the electron streams is closer to said common point than to the electron guns.
Claim 18
Dependent Claim
105 words
A ray typewriter for manual operation, comprising a plurality of sources of radiant energy disposed in an arc about a common region, a different formed outlet adjacent each of said sources in operative relation therewith, each of said outlets having the shape of a type representing a character, a keyboard for successively and selectively projecting radiation from said sources through said type-outlets in converging directions to said common region, refractory means interposed in the path of radiation to said point to obtain images of said types adjacent said point, and a cylindrical roll for holding a record, said roll being axially movable past said point.
Claim 19
Dependent Claim
105 words
A ray typewriter for manual operation, comprising a plurality of sources of radiant energy disposed in an arc about a common region, a different formed outlet adjacent each of said sources in operative relation therewith, each of said outlets having the shape of a type representing a character, a keyboard for successively and selectively projecting radiation from said sources through said type-outlets in converging directions to said common region, refractory means interposed in the path of radiation to said point to obtain images of said types adjacent said point, and a cylindrical roll for holding a record, said roll being axially movable past said point.
Claim 20
Dependent Claim
78 words
A ray typewriter according to claim 16, wherein the sources of radiant energy are incandescent bulbs containing each an incandescent wire extending along a single straight line, a plurality of bulbs are arranged in an arc adjacent each other, said line being approximately perpendicular to the plane of said arc, a light-pipe is placed adjacent each bulb, the cross-sectional area of said light pipe diminishing with increasing distance from said bulb and said light-pipe terminating in a type-outlet.
Claim 21
Dependent Claim
76 words
A ray typewriter for manual operation, comprising refractory means with a plurality of differently formed outlets arranged about a common point at an approximately constant distance therefrom, said outlets having the shape of characters and being directed radially of said point, means for emitting radiant energy selectively and successively through said outlets, a cylindrical roll for holding a record, and means for moving said roll intermittently in the direction of its axis past said common point.
Claim 22
Dependent Claim
76 words
A ray typewriter for manual operation, comprising refractory means with a plurality of differently formed outlets arranged about a common point at an approximately constant distance therefrom, said outlets having the shape of characters and being directed radially of said point, means for emitting radiant energy selectively and successively through said outlets, a cylindrical roll for holding a record, and means for moving said roll intermittently in the direction of its axis past said common point.
References Cited (Backward Citations)
US2448244A
Cited
US3115076A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |