US3826043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door installations
Assignee: Individual
•
Filing: 1972-06-06
•
Granted: 1974-07-30
•
Expires: 1992-06-06
Abstract
Abstract An installation having a slidable door in which there is provided preferably two fixed side elements which are horizontally spaced, with the slidable door being movable between the side elements on rollers which are mounted on said side elements to grip top and bottom portions of the door. Balancing rollers on ground level also support the door.
Inventors
- 👤 K Seng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:52
CPC Classifications
E; E05; E05D; E05D15/00; E05D15/06; E05D15/0621; E05D15/066; E05Y; E05Y2201/00; E05Y2201/60; E05Y2201/622; E05Y2201/674; E05Y2600/00; E05Y2600/10; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
175 words
An instAllation for a slidable door which comprises: a slidable door; a first fixed side element; a first set of rollers; a second set of rollers; each roller in said first and said second set of rollers having an axle which is supported on said first fixed side element; said first set of rollers engaging a horizontal top part of said slidable door and said second set of rollers engaging a horizontal bottom part of said slidable door and constituting the sole means for guiding and supporting the door; and at least one roller of said second set of rollers being a drive roller, the axle of said drive roller being coupled to a remotely controllable power operated means; a rotatable eccentric sleeve having an axis of rotation which is fixed relative to said first fixed side elemnt, said axle of said drive roller being rotatable within said eccentric sleeve; and biasing means coupled to said eccentric sleeve to bias said axle of said drive roller towards said horizontal bottom part of said slidable door.
Claim 2
Dependent Claim
175 words
An instAllation for a slidable door which comprises: a slidable door; a first fixed side element; a first set of rollers; a second set of rollers; each roller in said first and said second set of rollers having an axle which is supported on said first fixed side element; said first set of rollers engaging a horizontal top part of said slidable door and said second set of rollers engaging a horizontal bottom part of said slidable door and constituting the sole means for guiding and supporting the door; and at least one roller of said second set of rollers being a drive roller, the axle of said drive roller being coupled to a remotely controllable power operated means; a rotatable eccentric sleeve having an axis of rotation which is fixed relative to said first fixed side elemnt, said axle of said drive roller being rotatable within said eccentric sleeve; and biasing means coupled to said eccentric sleeve to bias said axle of said drive roller towards said horizontal bottom part of said slidable door.
Claim 3
Dependent Claim
241 words
An installation for a slidable door which comprises: a slidable door; a first fixed side element; a first set of rollers; a second set of rollers; each roller in said first and said second set of rollers having an axle which is supported on said first fixed side element; said first set of rollers engaging a horizontal top part of said slidable door and said second set of rollers engaging a horizontal bottom part of said slidable door; at least one roller of said second set of rollers being a drive roller; the axle of said drive roller being coupled to a remotely controllable power operated means; a rotatable eccentric sleeve having an axis of rotation which is fixed relative to said first fixed side element; said axle of said drive roller being rotatable within said eccentric sleeve; and biasing means coupled to said eccentric sleeve to bias said axle of said drive roller towards said horizontal bottom part of said slidable door; said biasing means comprising: an arm member; and a sring; one end of said arm member extending radially from an external surface of said eccentric sleeve; said spring being coupled to an opposite end of said arm member, an end of said spring being fixed relative to said first fixed element, said spring and said arm member rotating said eccentric sleeve to move said axle of said drive roller towards said horizontal bottom part of said slidable door.
Claim 4
Dependent Claim
241 words
An installation for a slidable door which comprises: a slidable door; a first fixed side element; a first set of rollers; a second set of rollers; each roller in said first and said second set of rollers having an axle which is supported on said first fixed side element; said first set of rollers engaging a horizontal top part of said slidable door and said second set of rollers engaging a horizontal bottom part of said slidable door; at least one roller of said second set of rollers being a drive roller; the axle of said drive roller being coupled to a remotely controllable power operated means; a rotatable eccentric sleeve having an axis of rotation which is fixed relative to said first fixed side element; said axle of said drive roller being rotatable within said eccentric sleeve; and biasing means coupled to said eccentric sleeve to bias said axle of said drive roller towards said horizontal bottom part of said slidable door; said biasing means comprising: an arm member; and a sring; one end of said arm member extending radially from an external surface of said eccentric sleeve; said spring being coupled to an opposite end of said arm member, an end of said spring being fixed relative to said first fixed element, said spring and said arm member rotating said eccentric sleeve to move said axle of said drive roller towards said horizontal bottom part of said slidable door.
Claim 5
Dependent Claim
222 words
An installation for a slidable door which comprises: a slidable door; a first fixed side element; a first set of rollers; a second set of roller; each roller in said first and second set of rollers having an axle which is supported on said first fixed side element; said first set of rollers engaging a horizontal top part of said slidable door and said second set of rollers engaging a horizontal top part of said slidable door and said second set of rollers engaging a horizontal bottom part of said slidable door and constituting the sole means for guiding and supporting the door; and at least one roller of said second set of rollers being a drive roller, the axle of said drive roller being coupled to a remotely controllable power operated means; the base plate being secured to said first fixed side element; a rotatable eccentric sleeve, a bearing between the eccentric sleeve and the base plate enabling the sleeve to rotate relative to the base plate; a drive shaft for the drive roller, a second bearing between the eccentric sleeve and the drive shaft enabling the drive shaft to rotate relative to the sleeve; and spring means connected to the eccentric sleeve to bias the drive shaft of the drive roller towards the horizontal bottom part of the slidable door.
Claim 6
Dependent Claim
222 words
An installation for a slidable door which comprises: a slidable door; a first fixed side element; a first set of rollers; a second set of roller; each roller in said first and second set of rollers having an axle which is supported on said first fixed side element; said first set of rollers engaging a horizontal top part of said slidable door and said second set of rollers engaging a horizontal top part of said slidable door and said second set of rollers engaging a horizontal bottom part of said slidable door and constituting the sole means for guiding and supporting the door; and at least one roller of said second set of rollers being a drive roller, the axle of said drive roller being coupled to a remotely controllable power operated means; the base plate being secured to said first fixed side element; a rotatable eccentric sleeve, a bearing between the eccentric sleeve and the base plate enabling the sleeve to rotate relative to the base plate; a drive shaft for the drive roller, a second bearing between the eccentric sleeve and the drive shaft enabling the drive shaft to rotate relative to the sleeve; and spring means connected to the eccentric sleeve to bias the drive shaft of the drive roller towards the horizontal bottom part of the slidable door.
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) | 1977-07-29 | 1978-01-28 | 1978-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-29 | 1982-01-28 | 1982-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-29 | 1986-01-28 | 1986-07-30 | $7700.00 | Window Closed / Lapsed |