US3356170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railroad track weight detector
Assignee: Sands Measurement Corp
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Filing: 1964-10-22
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Granted: 1967-12-05
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Expires: 1984-10-22
Abstract
No abstract record available.
Inventors
- 👤 William E Cory
- 👤 Jack B Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:06
CPC Classifications
G; G01; G01G; G01G3/00; G01G3/12; G01G3/14; G01G3/1402; G01G3/1406; G01G19/00; G01G19/02; G01G19/04; G01G19/045; G01G19/047; G01G3/142; G01G3/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
AN APPARATUS FOR SENSING THE POSITION OF A MOVING BODY INCLUDING: A BEAM; MEANS SUPPORTING SAID BEAM AT LONGUTIDINALLY SPACED LOCATIONS WHEREBY SAID BEAM IS FREE TO DEFLECT DOWNWARDLY AS THE BODY MOVES LONGITUDINALLY OVER SAID BEAM; MEANS FOR SENSING THE DEFLECTION OF SAID BEAM AT POINTS SPACED LONGITUDINALLY EQUIDISTANTLY FROM AND ON OPPOSITE SIDES OF THE MIDPOINT OF THE SPAN OF SAID BEAM BETWEEN SAID SPACED LOCATIONS; AND MEANS OPERATIVELY ASSOCIATED WITH SAID SENSING MEANS FOR PRODUCING AN ALTERNATING VOLTAGE WHOSE PHASE SHIFTS 180 DEGREES AT THE INSTANT SAID BODY MOVES PAST THE MIDPOINT OF THE SPAN OF SAID BEAM DURING ITS LONGITUDINAL MOVEMENT OVER SAID BEAM.
Claim 2
Independent Claim
108 words
AN APPARATUS FOR SENSING THE POSITION OF A MOVING BODY INCLUDING: A BEAM; MEANS SUPPORTING SAID BEAM AT LONGUTIDINALLY SPACED LOCATIONS WHEREBY SAID BEAM IS FREE TO DEFLECT DOWNWARDLY AS THE BODY MOVES LONGITUDINALLY OVER SAID BEAM; MEANS FOR SENSING THE DEFLECTION OF SAID BEAM AT POINTS SPACED LONGITUDINALLY EQUIDISTANTLY FROM AND ON OPPOSITE SIDES OF THE MIDPOINT OF THE SPAN OF SAID BEAM BETWEEN SAID SPACED LOCATIONS; AND MEANS OPERATIVELY ASSOCIATED WITH SAID SENSING MEANS FOR PRODUCING AN ALTERNATING VOLTAGE WHOSE PHASE SHIFTS 180 DEGREES AT THE INSTANT SAID BODY MOVES PAST THE MIDPOINT OF THE SPAN OF SAID BEAM DURING ITS LONGITUDINAL MOVEMENT OVER SAID BEAM.
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) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |