US3576233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scaffold structure
Assignee: Individual
•
Filing: 1969-08-06
•
Granted: 1971-04-27
•
Expires: 1989-08-06
Abstract
Abstract A scaffold structure includes a frame having a pair of upright tubular track members arranged along one side of a vehicle in a longitudinally spaced relation. Each track member adjustably carries a vertically movable carriage member. Horizontal arms on the carriage members extend laterally outwardly from the one side of the vehicle and support a horizontal work platform. The tracks are adjustably mounted on the vehicle for movement transversely thereof to provide for a lateral adjustment of the platform relative to the vehicle. The carriage members are vertically movable by a motor and winch assembly supported from the underside of the platform and interconnected by cables with the carriage members. Power to the motor is supplied from the vehicle battery.
Inventors
- 👤 Chester J Thatcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:39
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/18; E04G1/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
236 words
A scaffold structure comprising: a. a pair of vertical longitudinally spaced tubular track members each of which has an upright slot in one side thereof, b. means supporting said track members in a parallel relation including brace members interconnecting said track members with the one sides thereof in a common plane, c. carriage members corresponding to said track members, each carriage member including an upright section and a horizontal section, d. means supporting said upright sections on corresponding track members for movement of said carriage members to vertically adjusted positions, e. a horizontal work platform, f. means securing the work platform in a supported position on said horizontal sections, g. a motor and winch assembly supported from the underside of the platform including a winding drum, h. a first pulley mounted on each carriage member adjacent the upper end of an upright section for rotational movement in a vertical plane extended through the slot of a corresponding track member, i. a second pulley mounted on each horizontal section at a position spaced outwardly from a first pulley for rotational movement above a vertical axis, j. a pair of cables corresponding to said pair of carriage members, each cable wound on said winding drum and extended therefrom about said second and first pulleys for securement to the upper end of a corresponding track member, and k. means for connecting said motor to a source of power supply.
Claim 2
Dependent Claim
236 words
A scaffold structure comprising: a. a pair of vertical longitudinally spaced tubular track members each of which has an upright slot in one side thereof, b. means supporting said track members in a parallel relation including brace members interconnecting said track members with the one sides thereof in a common plane, c. carriage members corresponding to said track members, each carriage member including an upright section and a horizontal section, d. means supporting said upright sections on corresponding track members for movement of said carriage members to vertically adjusted positions, e. a horizontal work platform, f. means securing the work platform in a supported position on said horizontal sections, g. a motor and winch assembly supported from the underside of the platform including a winding drum, h. a first pulley mounted on each carriage member adjacent the upper end of an upright section for rotational movement in a vertical plane extended through the slot of a corresponding track member, i. a second pulley mounted on each horizontal section at a position spaced outwardly from a first pulley for rotational movement above a vertical axis, j. a pair of cables corresponding to said pair of carriage members, each cable wound on said winding drum and extended therefrom about said second and first pulleys for securement to the upper end of a corresponding track member, and k. means for connecting said motor to a source of power supply.
Claim 3
Dependent Claim
132 words
The scaffold according to claim 1 including: a. upper and lower pairs of rollers on the vertical section of each carriage member located within a corresponding track member, the lower pair of rollers ridable on the inner surface of the side of a track member opposite the one side thereof, and the upper pair of rollers ridable on the inner surface of the one side of a track member, with the slot in said one side positioned between each of said pairs of rollers, b. said first pulleys spaced above said upper pair of rollers whereby, on up and down movement of said platform, the portion of each cable between the upper end of a track member and a corresponding first pulley is receivable within a track member through the slot therein.
Claim 4
Dependent Claim
229 words
A scaffold for mounting on a road vehicle having front and rear bumpers and a source of electrical power comprising: a. front and rear support members extended transversely of the vehicle and corresponding to said front and rear bumpers, respectively, b. means for mounting a support member on a corresponding bumper for adjustable movement longitudinally thereof, c. a pair of upright track members at one side of and spaced longitudinally of the vehicle corresponding to said support members, d. means securing a track member to each of said support members adjacent corresponDing one ends thereof, e. means interconnecting said track members, f. brace means extended between and connected to each track member and a corresponding opposite end of a support member, g. a pair of carriage members corresponding to said track members, each carriage member including an upright section and a horizontal section projected outwardly from said one side of the vehicle. h. means movable supporting each of said upright sections on a track member for adjustable up and down movement of said carriage members, i. a horizontal platform carried on and secured to said horizontal sections, j. a reversible motor and winch assembly mounted on said platform in a position to the underside thereof, k. cable means interconnecting said winch with each of said carriage members, and l. means connecting said motor to said source of electrical power.
Claim 5
Dependent Claim
229 words
A scaffold for mounting on a road vehicle having front and rear bumpers and a source of electrical power comprising: a. front and rear support members extended transversely of the vehicle and corresponding to said front and rear bumpers, respectively, b. means for mounting a support member on a corresponding bumper for adjustable movement longitudinally thereof, c. a pair of upright track members at one side of and spaced longitudinally of the vehicle corresponding to said support members, d. means securing a track member to each of said support members adjacent corresponDing one ends thereof, e. means interconnecting said track members, f. brace means extended between and connected to each track member and a corresponding opposite end of a support member, g. a pair of carriage members corresponding to said track members, each carriage member including an upright section and a horizontal section projected outwardly from said one side of the vehicle. h. means movable supporting each of said upright sections on a track member for adjustable up and down movement of said carriage members, i. a horizontal platform carried on and secured to said horizontal sections, j. a reversible motor and winch assembly mounted on said platform in a position to the underside thereof, k. cable means interconnecting said winch with each of said carriage members, and l. means connecting said motor to said source of electrical power.
Claim 6
Dependent Claim
71 words
The scaffold for mounting on a road vehicle according to claim 3 wherein: a. each support member is of a circular tubular construction, b. said mounting means includes a circular tubular base member through which a support member is slidably adjustably extended, c. means rigidly securing a base member on a corresponding bumper, and d. means for locking a support member in an adjusted position relative to a corresponding base member.
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) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |