US4366649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic gate
Assignee: Individual
•
Filing: 1981-06-02
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Granted: 1983-01-04
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Expires: 2001-06-02
Abstract
Abstract An improved electrically operated gate having a rectangular frame with a top horizontal rail, a bottom horizontal rail and vertical ends, a roller adjacent each end extending below the bottom rail by which the gate rolls from open to closed positions, the gate moving in a longitudinal vertical plane, a roller engaging the top rail to maintain the frame in a vertical plane, an inverted horizontal rack affixed to the frame on one side thereof adjacent the frame bottom, the rack having a series of equally spaced teeth, an electric motor drive means affixed at a stationary position adjacent the gate frame and having a pinion drive gear rotatably extending therefrom below the rack and in engagement with the rack teeth, and springs to resiliently urge the pinion gear upwardly into engagement with the rack teeth so that when the electric motor is energized the frame is longitudinally moved to open or close the gate.
Inventors
- 👤 Frederick E. Weigant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:35
CPC Classifications
E; E06; E06B; E06B11/00; E06B11/02; E06B11/04; E06B11/045; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/632; E05F15/635; E05Y; E05Y2201/00; E05Y2201/40; E05Y2201/43; E05Y2201/434; E05Y2201/47; E05Y2201/474; E05Y2201/60; E05Y2201/606; E05Y2201/61; E05Y2201/616; E05Y2201/622; E05Y2201/644; E05Y2201/646; E05Y2201/652; E05Y2201/71; E05Y2201/716; E05Y2201/722; E05Y2600/00; E05Y2600/10; E05Y2600/11; E05Y2600/13; E05Y2600/30; E05Y2600/32; E05Y2600/322; E05Y2600/40; E05Y2600/452; E05Y2900/00; E05Y2900/40
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
172 words
An improved electrically operated gate comprising: a rectangular frame having a top horizontal rail, a bottom horizontal rail, and vertical ends; a roller adjacent each end extending below said bottom rail by which the gate rolls from an open to a closed position and vice versa, the gate moving in a longitudinal vertical plane; means engaging said top rail to maintain said frame in a vertical plane; an inverted horizontal rack affixed to said frame on one side thereof, the rack providing a series of equally spaced teeth; an electric motor drive means affixed at a stationary position adjacent the gate frame and having a pinion drive gear rotatably extending therefrom, the pinion drive gear being below said rack and in engagement with the rack teeth; and means of resiliently urging said pinion gear upwardly into engagement with said rack teeth whereby when said electric motor drive means is energized said gate frame is longitudinally moved to open or close the gate depending on the direction of rotation of the pinion gear.
Claim 2
Dependent Claim
172 words
An improved electrically operated gate comprising: a rectangular frame having a top horizontal rail, a bottom horizontal rail, and vertical ends; a roller adjacent each end extending below said bottom rail by which the gate rolls from an open to a closed position and vice versa, the gate moving in a longitudinal vertical plane; means engaging said top rail to maintain said frame in a vertical plane; an inverted horizontal rack affixed to said frame on one side thereof, the rack providing a series of equally spaced teeth; an electric motor drive means affixed at a stationary position adjacent the gate frame and having a pinion drive gear rotatably extending therefrom, the pinion drive gear being below said rack and in engagement with the rack teeth; and means of resiliently urging said pinion gear upwardly into engagement with said rack teeth whereby when said electric motor drive means is energized said gate frame is longitudinally moved to open or close the gate depending on the direction of rotation of the pinion gear.
Claim 3
Dependent Claim
71 words
An improved electrically operated gate according to claim 1 wherein each of said rollers has a recessed peripheral surface and including: a horizontal track positioned to receive said rollers and guide said gate frame as the gate is moved from the opened to the closed position and vice versa, and in which the cross-sectional contour of the track conforms to and is received by the recessed peripheral surface of said rollers.
Claim 4
Dependent Claim
37 words
An improved electrically operated gate according to claim 1 wherein said rack teeth are in the form of cylindrical pins, the axii of the pins being parallel each other and perpendicular the longitudinal axis of the rack.
Claim 5
Dependent Claim
46 words
An improved electrically operated gate according to claim 3 wherein said rack is in the form of an inverted channel member defined in cross-section by a horizontal center web and opposed downwardly extending paralleled sides, said pins being affixed between the inside surfaces of the sides.
Claim 6
Dependent Claim
93 words
An improved electrically operated gate according to claim 1 wherein said electric motor drive means includes: a base for supporting in a stationary position adjacent said gate frame; a support structure pivotally affixed at a first end to said base; spring means extending between said base and the second end of said support structure whereby said support structure second end is urged resiliently upwardly; and means of rotatably supporting said electric motor drive means and pinion gear to said support structure whereby said pinion gear is resiliently urged upwardly to engage said rack.
Claim 7
Dependent Claim
68 words
An improved electrically operated gate according to claim 5 wherein said spring means includes a plurality of upwardly extending tubular members supported at their lower ends to said base; a spring received in each said tubular member; a plunger reciprocally received in each said tubular member in engagement with the spring therein, the upper end of each plunger being affixed to said support structure adjacent the second end.
Claim 8
Dependent Claim
37 words
An improved electrically operated gate according to claim 5 wherein the length of each of said plungers is adjustably variable whereby the force by which said pinion gear is resilient urged against said rack may be varied.
Claim 9
Dependent Claim
75 words
An improved electrically operated gate according to claim 5 wherein said means of rotatably supporting said electric motor drive means and pinion gear to said support structure includes: a shaft rotatably supported to said support structure, said pinion gear being affixed to one end of the shaft; an electric motor means having an output shaft, the motor means being affixed to said support structure; and gear means coupling said motor shaft to said drive shaft.
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) | 1986-01-03 | 1986-07-05 | 1987-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-03 | 1990-07-05 | 1991-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-03 | 1994-07-05 | 1995-01-04 | $7700.00 | Window Closed / Lapsed |