Patent US3794401A successfully refreshed from Google Patents.
US3794401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door guide
Assignee: Hutchinson Aerospace and Industry Inc
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Filing: 1971-10-20
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Granted: 1974-02-26
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Expires: 1991-10-20
Abstract
Abstract A simplified and dependable construction for the support and guidance of retracting doors and other closures of the type that are patricularly useful in business type file cabinets. A preferred construction employs a shaft attached to the door and is provided with gears at its opposite ends which serve as the hinge of the door. The gears are confined within a pair of door guides that contain linearly arranged gear teeth or a gear rack or projections within a guide track which is open on one side. The gear rack teeth mesh with the gears on the door and confine the path of travel of the door along the path of the guides. The outer walls of the guide track prevent derailing of the shaft and confine the movement of the door to rectilinear translation along the trackways without undesired twisting movement. The multiple gear-rack arrangement ensures a timed uniform rectilinear movement of the door. The front and rear ends of the guides are closed to prevent removal of the door and to provide door stop locations.
Inventors
- 👤 C Dean
- 👤 D Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:03
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/50; E06B3/5045; A; A47; A47B; A47B46/00; A47B46/005; E05; E05D; E05D15/00; E05D15/56; E05D15/58; E05D15/582; E05Y; E05Y2900/00; E05Y2900/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
327 words
An improved enclosure body-closure combination comprising, in combination: means forming a polygonal cabinet having a forward opening and top wall and side walls and a movable closure concealable inside said cabinet along said top wall and movable to a cabinet-closed position obturating said forward opening and to a cabinet-open position concealed within said cabinet along said top wall thereof and support and guidance means for the door forming a suspension mount therefor, said support and guidance means comprising a pair of elongated door guides affixed within the cabinet on opposite side walls thereof adjacent said top wall and extending from front to back thereon, each of said elongated door guides comprising an elongated channel having base, side and top walls and being open at one side with the guides being disposed with their channels in confronting relationship to each other, means forming geAred and smooth tracks disposed along the base wall of each of the door guides and extending substantially the entire length thereof terminating in semicylindrical ends, the smooth track being disposed adjacent the open side of the channel and the gear track being disposed adjacent the closed side of the channel, shaft means forming a shaft with ends disposed in each of said confronting channels, combined gear and smooth roller means arranged on said shaft ends and disposed in said channels with said geared portions being disposed outside said smooth portions and making with corresponding sections of said guide tracks, the guide track smooth and geared portions being integrally formed as a pair of single units and the gear and smooth roller means being integrally formed as single units with the smooth roller of each pair having a greater diameter than the gear roller thereof, and plural bearing means engaging said shaft at spaced locations thereon between said roller means and being mounted on said closure at a back end thereof to serve as sole support thereof when the front end thereof is hand held.
Claim 2
Dependent Claim
327 words
An improved enclosure body-closure combination comprising, in combination: means forming a polygonal cabinet having a forward opening and top wall and side walls and a movable closure concealable inside said cabinet along said top wall and movable to a cabinet-closed position obturating said forward opening and to a cabinet-open position concealed within said cabinet along said top wall thereof and support and guidance means for the door forming a suspension mount therefor, said support and guidance means comprising a pair of elongated door guides affixed within the cabinet on opposite side walls thereof adjacent said top wall and extending from front to back thereon, each of said elongated door guides comprising an elongated channel having base, side and top walls and being open at one side with the guides being disposed with their channels in confronting relationship to each other, means forming geAred and smooth tracks disposed along the base wall of each of the door guides and extending substantially the entire length thereof terminating in semicylindrical ends, the smooth track being disposed adjacent the open side of the channel and the gear track being disposed adjacent the closed side of the channel, shaft means forming a shaft with ends disposed in each of said confronting channels, combined gear and smooth roller means arranged on said shaft ends and disposed in said channels with said geared portions being disposed outside said smooth portions and making with corresponding sections of said guide tracks, the guide track smooth and geared portions being integrally formed as a pair of single units and the gear and smooth roller means being integrally formed as single units with the smooth roller of each pair having a greater diameter than the gear roller thereof, and plural bearing means engaging said shaft at spaced locations thereon between said roller means and being mounted on said closure at a back end thereof to serve as sole support thereof when the front end thereof is hand held.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |