US3170258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gate with automatic closer
Assignee: Individual
•
Filing: 1962-05-11
•
Granted: 1965-02-23
•
Expires: 1982-05-11
Abstract
No abstract record available.
Inventors
- 👤 William T Ohlhausen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:05
CPC Classifications
E; E06; E06B; E06B11/00; E06B11/02; E06B11/022; E06B11/027; E01; E01F; E01F13/00; E01F13/04; E01F13/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A GROUND HINGED BUMP GATE COMPRISING: A RECTANGULAR FLAT BASE OF SUBSTANTIAL THICKNESS RESTING ON A ROADWAY, A TRANSVERSE CHANNEL MIDWAY IN SAID BASE AND NEARLY AS DEEP AS THE THICKNESS OF SAID BASE, A SHAFT SUSPENDED ON BEARINGS ALONG THE CENTER OF SAID CHANNEL BELOW THE SURFACE OF SAID BASE AND ABOVE THE BOTTOM OF SAID CHANNEL, PICKETS OF FLAT SPRING MATERIAL ATTACHED TO AND SPACED ALONG SAID SHAFT AND NORMALLY EXTENDING UPRIGHT FROM SAME IN THE SAME PLANE, PARALLEL GROOVES IN THE UPPER SURFACE OF SAID BASE SLOPING FROM THE ENDS OF SAID BASE DOWN TOWARD THE LEVEL OF SAID SHAFT IN THE TRANSVERSE CHANNEL, SPACED EVEN WITH SAID PICKETS AND LARGE ENOUGH TO RECEIVE THE SAME IN A PRONE POSITION, A CRANK ON ONE END OF SAID SHAFT, A PNEUMATICALLY DAMPED DOOR CLOSER ATTACHED TO THE SIDE OF SAID BASE AND LINKED TO SAID CRANK..
Claim 2
Dependent Claim
148 words
A GROUND HINGED BUMP GATE COMPRISING: A RECTANGULAR FLAT BASE OF SUBSTANTIAL THICKNESS RESTING ON A ROADWAY, A TRANSVERSE CHANNEL MIDWAY IN SAID BASE AND NEARLY AS DEEP AS THE THICKNESS OF SAID BASE, A SHAFT SUSPENDED ON BEARINGS ALONG THE CENTER OF SAID CHANNEL BELOW THE SURFACE OF SAID BASE AND ABOVE THE BOTTOM OF SAID CHANNEL, PICKETS OF FLAT SPRING MATERIAL ATTACHED TO AND SPACED ALONG SAID SHAFT AND NORMALLY EXTENDING UPRIGHT FROM SAME IN THE SAME PLANE, PARALLEL GROOVES IN THE UPPER SURFACE OF SAID BASE SLOPING FROM THE ENDS OF SAID BASE DOWN TOWARD THE LEVEL OF SAID SHAFT IN THE TRANSVERSE CHANNEL, SPACED EVEN WITH SAID PICKETS AND LARGE ENOUGH TO RECEIVE THE SAME IN A PRONE POSITION, A CRANK ON ONE END OF SAID SHAFT, A PNEUMATICALLY DAMPED DOOR CLOSER ATTACHED TO THE SIDE OF SAID BASE AND LINKED TO SAID CRANK..
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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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |