US3837429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traveling scaffold
Assignee: Individual
•
Filing: 1973-08-03
•
Granted: 1974-09-24
•
Expires: 1993-08-03
Abstract
Abstract An elongated power driven roller unit is mounted on an elongated tubular member and is adapted to roll around an elevated structure having a round upper portion. Flexible lines are connected to opposite ends of the tubular member with the lowermost line connected to a work scaffold and the uppermost line connected to anchor means adjacent the top of the elevated structure. Other flexible support lines extend longitudinally through the tubular member with the upper ends thereof connected to the anchor means.
Inventors
- 👤 R Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:34
CPC Classifications
E; E04; E04G; E04G3/00; E04G3/24; E04G3/243; E04G3/28; E04G3/34
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
167 words
In a traveling scaffold for an elevated structure having a generally round upper portion and anchor means adjacent the top thereof; a. an elongated tubular member having a passageway therethrough, b. an elongated roller unit mounted for rotation on said tubular member and adapted to roll around said structure, c. drive means carried by said tubular member and operatively connected to said roller for rotating said roller, d. a first flexible line connected at one end to one end of said tubular member with the other end thereof being adapted for connection to a work scaffold, e. a second flexible line connected at one end to the other end of said tubular member with the other end thereof being adapted for connection to said anchor means so that said tubular member and said work scaffold are supported from said anchor means, said f. at least one flexible line extending longitudinally through said tubular member with the upper end thereof being adapted for connection to said anchor means.
Claim 2
Dependent Claim
167 words
In a traveling scaffold for an elevated structure having a generally round upper portion and anchor means adjacent the top thereof; a. an elongated tubular member having a passageway therethrough, b. an elongated roller unit mounted for rotation on said tubular member and adapted to roll around said structure, c. drive means carried by said tubular member and operatively connected to said roller for rotating said roller, d. a first flexible line connected at one end to one end of said tubular member with the other end thereof being adapted for connection to a work scaffold, e. a second flexible line connected at one end to the other end of said tubular member with the other end thereof being adapted for connection to said anchor means so that said tubular member and said work scaffold are supported from said anchor means, said f. at least one flexible line extending longitudinally through said tubular member with the upper end thereof being adapted for connection to said anchor means.
Claim 3
Dependent Claim
69 words
A traveling scaffold as defined in claim 1 in which said roller unit comprises an elongated cylindrical member with bearing members interposed between said cylindrical member and said tubular member and the means operatively connecting said drive means to said roller comprises a rotary power transmitting member carried by one end of said cylindrical member and operatively connected to a rotary power transmitting member carried by said drive means.
Claim 4
Dependent Claim
38 words
A traveling scaffold as defined in claim 1 in which an end of said tubular member extends beyond said roller unit and is mounted on a translatable frame with said drive means being supported by said translatable frame.
Claim 5
Dependent Claim
34 words
A traveling scaffold as defined in claim 3 in which said translatable frame comprises an elongated frame member extending transversely of said tubular member and supporting rollers adjacent opposite ends of said elongated frame.
Claim 6
Dependent Claim
43 words
A traveling scaffold as defined in claim 1 in which the flexible line extending through said tubular member is a man safety line with the lower portion thereof being adapted for attachment to the body of a man carried by said work scaffold.
Claim 7
Dependent Claim
45 words
A traveling scaffold as defined in claim 1 in which said flexible line extending through said tubular member is a machine safety line which is adapted for attachment adjacent its lower end to said first flexible line between said tubular Member and said work scaffold.
Claim 8
Dependent Claim
34 words
A traveling scaffold as defined in claim 1 in which said flexible line extending through said tubular member is a power supply line which is connected adjacent its upper end to said drive means.
Claim 9
Dependent Claim
48 words
A traveling scaffold as defined in claim 7 in which a power operated winch is carried by said work scaffold and is operatively connected to said first flexible line for raising and lowering said work scaffold and said power supply line is connected to said power operated winch.
Claim 10
Dependent Claim
59 words
A traveling scaffold as defined in claim 1 in which at least one elongated idler roller is mounted on a hollow supporting shaft in position for said flexible lines to extend through said hollow supporting shaft so that the portions of said flexible lines which pass through said idler roller are retained out of contact with said elevated structure.
Claim 11
Dependent Claim
45 words
A traveling scaffold as defined in claim 9 in which one end of said idler roller is connected by a flexible line to said elongated tubular member with the other end of said idler roller being connected by a flexible line to said elevated structure.
References Cited (Backward Citations)
US1101839A
Cited
US1421609A
Cited
US1705958A
Cited
US2881029A
Cited
US3114433A
Cited
US3537545A
Cited
US3633708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |