US3869835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drawer-type grandstand arrangement
Assignee: Individual
•
Filing: 1974-02-15
•
Granted: 1975-03-11
•
Expires: 1994-02-15
Abstract
Abstract A grandstand arrangement of the drawer-type comprises a plurality of seating sections supported at different levels, each section having a seating platform sloping downwardly in a forward direction with all but the rearwardmost platform being pivotally mounted at its forward end for lowering into a horizontal position. The height and width of each pivotally mounted section in the horizontal position of its seating platform is less than the corresponding height and width of the structural framework of an adjacent section so that each section may be telescoped one within the other into a compact storage position.
Inventors
- 👤 Charles Mackintosh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:35
CPC Classifications
E; E04; E04H; E04H3/00; E04H3/10; E04H3/12; E04H3/123
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
173 words
A grandstand arrangement, comprising at least two seating sections disposed one behind the other with at least the forward section mounted on rollers for horizontal movement, the rearward section being supported on a structural framework having an open forward end, said rearward section further including a seating platform mounted at an inclination to the horizontal on said framework at the upper portion thereof, seats carried by said seating platform, said forward section including a seating platform and seats carried thereby, means for raising and lowering said forward section seating platform about the forward end thereof between a horizontal position and an angle having the same inclination as said rearward section seating platform, the height and width of said forward section in the horizontal position of its seating platform being less than the corresponding height and width of said structural framework, whereby said forward section is capable of being telescoped within said framework through its open end when said forward section seating platform is lowered into its horizontal position and is moved rearwardly thereinto.
Claim 2
Dependent Claim
173 words
A grandstand arrangement, comprising at least two seating sections disposed one behind the other with at least the forward section mounted on rollers for horizontal movement, the rearward section being supported on a structural framework having an open forward end, said rearward section further including a seating platform mounted at an inclination to the horizontal on said framework at the upper portion thereof, seats carried by said seating platform, said forward section including a seating platform and seats carried thereby, means for raising and lowering said forward section seating platform about the forward end thereof between a horizontal position and an angle having the same inclination as said rearward section seating platform, the height and width of said forward section in the horizontal position of its seating platform being less than the corresponding height and width of said structural framework, whereby said forward section is capable of being telescoped within said framework through its open end when said forward section seating platform is lowered into its horizontal position and is moved rearwardly thereinto.
Claim 3
Dependent Claim
173 words
A grandstand arrangement, comprising at least two seating sections disposed one behind the other with at least the forward section mounted on rollers for horizontal movement, the rearward section being supported on a structural framework having an open forward end, said rearward section further including a seating platform mounted at an inclination to the horizontal on said framework at the upper portion thereof, seats carried by said seating platform, said forward section including a seating platform and seats carried thereby, means for raising and lowering said forward section seating platform about the forward end thereof between a horizontal position and an angle having the same inclination as said rearward section seating platform, the height and width of said forward section in the horizontal position of its seating platform being less than the corresponding height and width of said structural framework, whereby said forward section is capable of being telescoped within said framework through its open end when said forward section seating platform is lowered into its horizontal position and is moved rearwardly thereinto.
Claim 4
Dependent Claim
173 words
A grandstand arrangement, comprising at least two seating sections disposed one behind the other with at least the forward section mounted on rollers for horizontal movement, the rearward section being supported on a structural framework having an open forward end, said rearward section further including a seating platform mounted at an inclination to the horizontal on said framework at the upper portion thereof, seats carried by said seating platform, said forward section including a seating platform and seats carried thereby, means for raising and lowering said forward section seating platform about the forward end thereof between a horizontal position and an angle having the same inclination as said rearward section seating platform, the height and width of said forward section in the horizontal position of its seating platform being less than the corresponding height and width of said structural framework, whereby said forward section is capable of being telescoped within said framework through its open end when said forward section seating platform is lowered into its horizontal position and is moved rearwardly thereinto.
Claim 5
Dependent Claim
141 words
The grandstand arrangement according to claim 1 comprising at least three of said seating sections, the third of which including structural framework having an open forward end and a seating platform mounted on its framework at the upper portion thereof at an angle having the same inclination as said forward and rearward section seating platforms, seats carried by said third section seating platform, means for raising and lowering said rearward section seating platform about the forward end thereof between a horizontal position and its angle of inclination, said rearward section framework being mounted on rollers, the height and width of said rearward section in the horizontal position of its seating platform being less than the corresponding height and width of said third section framework when said rearward section seating platform is lowered into its horizontal position and is moved rearwardly thereinto.
Claim 6
Dependent Claim
16 words
The grandstand arrangement according to claim 2 wherein said raising and lowering means comprises screw jacks.
Claim 7
Dependent Claim
16 words
The grandstand arrangement according to claim 2 wherein said raising and lowering means comprises hydraulic jacks.
Claim 8
Dependent Claim
26 words
The grandstand arrangement according to claim 1 wherein guide tracks are provided for said rollers for guiding said forward section during its forward and rearward movement.
References Cited (Backward Citations)
US3168761A
Cited
US3429081A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |