Patent US4254555A successfully refreshed from Google Patents.
US4254555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perspective view apparatus
Assignee: Individual
•
Filing: 1979-05-11
•
Granted: 1981-03-10
•
Expires: 1999-05-11
Abstract
Abstract The disclosed device is a combination of horizontally and vertically guided members which form an input area and an output area so that perspective views of objects in the input area are created in the output area by the projections of the visible points of the objects onto a plane perpendicular to the line of sight, along lines from the viewpoint. In the input area, a horizontally guided bar has a vertical guide therein. Two members are hinged together at a viewpoint or separately at viewpoint and modified viewpoint and the ends of the members which fall in the input area are slideably connected to the guide in the horizontally guided bar. One end of the member falls in the output area and is horizontally guided while the other end of the second member also falls in the output area and is vertically guided. An output bar system is connected to these ends to form an output point in the output area. Specifically, the horizontally guided output end is connected to a vertical output bar and the vertically guided output end is connected to a horizontal output bar. The intersection of the vertical output bar and the horizontal output bar define the output point of the device.
Inventors
- 👤 Emile E. Julian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:00
CPC Classifications
B; B43; B43L; B43L13/00; B43L13/14; B43L13/141
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
372 words
An apparatus for creating perspective views on a drafting table comprising: (a) first horizontal guide means (1) mounted on the table; (b) second horizontal guide means (6) mounted on the table; (c) first vertical guide means (2,13) mounted on the table and perpendicular to the first horizontal guide means (1); (d) a first member (5) perpendicularly connected to the second horizontal guide means (6) for movement along the second horizontal guide means (6) such that said first member (5) is perpendicular to the second horizontal guide means (6), said first member (5) providing an input; (e) a second member (4,7) having a first end connected to the first member (5) for slideable movement along the first member (5), a second end connected to the first vertical guide means (2,13) for slideable movement along the first vertical guide means (2,13), and center portion interconnecting the first end and the second end of the second member (4,7); (f) a third member (3,8) having a first leg and a second leg, the first leg having a first end connected to the first member (5) for slideable movement along the first member (5), and the first leg having a trace point fixed thereto, the second leg having a second end connected to the first horizontal guide means (1) for slideable movement along the first horizontal guide means (1), the first and second legs intersecting at a viewpoint (P) and hingedly connected to said viewpoint (P) to the center portion of the second member (4,7) so that the trace point may be applied as a tracing input for the apparatus; and (g) an output plotting means comprising a fourth member (10,19) perpendicularly connected to the first horizontal guide means (1) and connected to said second end of the third member (3,8), said fourth member (10,19) connected for movement along the first horizontal guide means (1) such that said fourth, member (10,19) is perpendicular to the first horizontal guide means (1) and parallel to the first vertical guide means (2,13), and means (9, 13-15) connected to the second half of the second member (4,7) in a fixed relationship with the vertical position of a point in a fixed relationship to the second end of the second member (4,7).
Claim 2
Independent Claim
372 words
An apparatus for creating perspective views on a drafting table comprising: (a) first horizontal guide means (1) mounted on the table; (b) second horizontal guide means (6) mounted on the table; (c) first vertical guide means (2,13) mounted on the table and perpendicular to the first horizontal guide means (1); (d) a first member (5) perpendicularly connected to the second horizontal guide means (6) for movement along the second horizontal guide means (6) such that said first member (5) is perpendicular to the second horizontal guide means (6), said first member (5) providing an input; (e) a second member (4,7) having a first end connected to the first member (5) for slideable movement along the first member (5), a second end connected to the first vertical guide means (2,13) for slideable movement along the first vertical guide means (2,13), and center portion interconnecting the first end and the second end of the second member (4,7); (f) a third member (3,8) having a first leg and a second leg, the first leg having a first end connected to the first member (5) for slideable movement along the first member (5), and the first leg having a trace point fixed thereto, the second leg having a second end connected to the first horizontal guide means (1) for slideable movement along the first horizontal guide means (1), the first and second legs intersecting at a viewpoint (P) and hingedly connected to said viewpoint (P) to the center portion of the second member (4,7) so that the trace point may be applied as a tracing input for the apparatus; and (g) an output plotting means comprising a fourth member (10,19) perpendicularly connected to the first horizontal guide means (1) and connected to said second end of the third member (3,8), said fourth member (10,19) connected for movement along the first horizontal guide means (1) such that said fourth, member (10,19) is perpendicular to the first horizontal guide means (1) and parallel to the first vertical guide means (2,13), and means (9, 13-15) connected to the second half of the second member (4,7) in a fixed relationship with the vertical position of a point in a fixed relationship to the second end of the second member (4,7).
Claim 3
Dependent Claim
60 words
The apparatus of claim 1 wherein the first member (5) is a bar having a horizontal portion (5h) slidable along the second horizontal guide means (6) and a vertical portion (5v) perpendicular to the horizontal portion (5h) and having a track or slot (5s) therein for guiding the movement of the first ends of the second and third members (3,4,7,8).
Claim 4
Dependent Claim
85 words
The apparatus of claim 1 further including a fifth member (9) perpendicularly connected to the first vertical guide means (2) and connected to the second end of the second member (4,7), said fifth member (9) connected for movement along the vertical guide means (2) such that said fifth member (9) is perpendicular to the vertical guide means (2) and parallel to the first and second horizontal guide means (1,6), the intersection of said fifth member (9) and said fourth member (10) defining the output point.
Claim 5
Dependent Claim
96 words
The apparatus of claim 3 wherein the fourth member (10) is a bar having a horizontal portion (10h) connected for parallel movement along the first horizontal guide means (1) and a vertical portion (10v) having a guide means (10s) therein; and said fifth member (9) is a bar having a vertical portion (9v) connected to the first vertical guide means (2) and a horizontal portion (9h) perpendicular to the vertical portion having a slot (9s) therein wherein the intersection of said slots (9s, 10s) of said fourth and fifth members (9, 10) defines the output point.
Claim 6
Dependent Claim
16 words
The apparatus of claim 3, wherein said first horizontal guide means (1) is a cable means.
Claim 7
Dependent Claim
52 words
The apparatus of claim 5, wherein said cable means includes a cable (13) for horizontal movement and connected to the second end of the first member (3,8) and a trolley (18) connected to the cable (13) and guided for horizontal movement along the fifth member (9,19), the trolley defining the output point.
Claim 8
Independent Claim
372 words
An apparatus for creating perspective views on a drafting table comprising: (a) first horizontal guide means (1) mounted on the table; (b) second horizontal guide means (6) mounted on the table; (c) first vertical guide means (2) mounted on the table and perpendicular to the first horizontal guide means (1); (d) a first member (5) perpendicularly connected to the second horizontal guide means (6) for movement along the second horizontal guide means (6) such that said first member (5) is perpendicular to the second horizontal guide means (6) said first member (5) providing an input; (e) a second member (4,7) having a first end connected to the first member (5) for slideable movement along the first member (5), a second end connected to the first vertical guide means (2) for slideable movement along the first vertical guide means (2), and center portion interconnecting the first end and the second end of the second member (4,7); (f) a third member (3,8) having a first leg and a second leg, the first leg having a first end connected to the first member (5) for slideable movement along the first member (5), and the first leg having a trace point fixed thereto, the second leg having a second end connected to the first horizontal guide means (1) for slidable movement along the first horizontal guide means (1), the first and second legs intersecting at a viewpoint (P), and hingedly connected at said viewpoint (P) to the center portion of the second member (4,7) so that the trace point may be applied as a tracing input for the apparatus; and (g) a horizontal member (9) perpendicularly connected to the first vertical guide means (2) and connected to the second end of the second member (4,7), said horizontal member (9) connected for movement along the first vertical guide means (2) such that said horizontal member (9) is perpendicular to the vertical guide means (2) and parallel to the first and second horizontal guide means (1,6), a vertical member (10) sliding along the first horizontal guide means (1) and connected to the second end of the third member (3,8) such that an output point is defined as the intersection of the horizontal and vertical members (9 and 10).
Claim 9
Independent Claim
372 words
An apparatus for creating perspective views on a drafting table comprising: (a) first horizontal guide means (1) mounted on the table; (b) second horizontal guide means (6) mounted on the table; (c) first vertical guide means (2) mounted on the table and perpendicular to the first horizontal guide means (1); (d) a first member (5) perpendicularly connected to the second horizontal guide means (6) for movement along the second horizontal guide means (6) such that said first member (5) is perpendicular to the second horizontal guide means (6) said first member (5) providing an input; (e) a second member (4,7) having a first end connected to the first member (5) for slideable movement along the first member (5), a second end connected to the first vertical guide means (2) for slideable movement along the first vertical guide means (2), and center portion interconnecting the first end and the second end of the second member (4,7); (f) a third member (3,8) having a first leg and a second leg, the first leg having a first end connected to the first member (5) for slideable movement along the first member (5), and the first leg having a trace point fixed thereto, the second leg having a second end connected to the first horizontal guide means (1) for slidable movement along the first horizontal guide means (1), the first and second legs intersecting at a viewpoint (P), and hingedly connected at said viewpoint (P) to the center portion of the second member (4,7) so that the trace point may be applied as a tracing input for the apparatus; and (g) a horizontal member (9) perpendicularly connected to the first vertical guide means (2) and connected to the second end of the second member (4,7), said horizontal member (9) connected for movement along the first vertical guide means (2) such that said horizontal member (9) is perpendicular to the vertical guide means (2) and parallel to the first and second horizontal guide means (1,6), a vertical member (10) sliding along the first horizontal guide means (1) and connected to the second end of the third member (3,8) such that an output point is defined as the intersection of the horizontal and vertical members (9 and 10).
Claim 10
Dependent Claim
29 words
The apparatus of claim 3 or 7, wherein the first horizontal and vertical guide means (1,2) each may be repositioned, either perpendicularly or parallel to their lengths, or both.
Claim 11
Dependent Claim
59 words
The apparatus of claim 1 or 7 wherein the center portion of the second member (4,7) forms a 180° angle between the first end and the second end of the second member (4,7); and the center portion of the third member (3,8) forms a 90° angle between the first end and the second end of the third member (3,8).
Claim 12
Dependent Claim
22 words
The apparatus of claim 1 or 7 wherein said second member (4,7) and said third member (3,8) are each telescoping members (7,8).
Claim 13
Dependent Claim
30 words
The apparatus of claim 1 or 7, wherein the hinging of the center portion of the third member (3,8) and of the second member (4,7) are located independently and movably.
Claim 14
Dependent Claim
64 words
The apparatus of claim 1 or 7, wherein the center portion of the second member (4,7) forms an angle which can be adjusted, between the first and the second end of the second member (4,7), and the center portion of the third member (3,8) forms an angle which can be adjusted, between the first end and the second end of the third member (3,8).
Claim 15
Dependent Claim
16 words
The apparatus of claim 1 wherein said first vertical guide means (2,13) is a cable means.
Claim 16
Dependent Claim
53 words
The apparatus of claim 5 wherein said cable means includes a cable (13) supported for vertical movement and connected to the second end of the second member (4,7) and a trolley (18) connected to the cable (13) and guided for vertical movement along the fourth member (10,19), the trolley defining the output point.
References Cited (Backward Citations)
US1826338A
Cited
US1986625A
Cited
US2442117A
Cited
US2648908A
Cited
US2651111A
Cited
GB757694A
Cited
US2711024A
Cited
US2854750A
Cited
US2895223A
Cited
US3226831A
Cited
US3258843A
Cited
US3332152A
Cited
US3300863A
Cited
US3318003A
Cited
US3646683A
Cited
US3719995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-09 | 1984-09-08 | 1985-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-09 | 1988-09-08 | 1989-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-09 | 1992-09-08 | 1993-03-10 | $7700.00 | Window Closed / Lapsed |