Patent US3496429A successfully refreshed from Google Patents.
Patent US3087187A successfully refreshed from Google Patents.
US3087187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automated leaf collector
Assignee: GOOD ROADS MACHINERY CORP
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Filing: 1960-10-31
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Granted: 1963-04-30
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Expires: 1980-10-31
Abstract
No abstract record available.
Inventors
- 👤 Emil J Hank
- 👤 John D Gayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:12
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/08; E01H1/0827; E01H1/0836
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A SYSTEM FOR COLLECTING LEAVES FROM A STREET COMPRISING; A TRUCK HAVING AN ENCLOSED HOUSING THEREON; A TRAILER CONNECTABLE TO BE PROPELLED BY THE TRUCK; A FAN ON THE TRAILER AND CONNECTABLE TO THE HOUSING FOR CREATING A PARTIAL VACUUM THEREIN WHEN THE FAN IS OPERATING; MULCHING MEANS ON THE TRAILER AND HAVING A ROTARY SHAFT WITH SHREDDING MEANS FLEXIBLY DEPENDING THEREFROM, SAID SHREDDING MEANS SPACED ALONG THE SHAFT LENGTH AND AROUND ITS CIRCUMFERENCE; MEANS FOR COMMUNICATING SAID PARTIAL VACUUM FROM THE HOUSING TO SAID MULCHING MEANS; POWER MEANS ON THE TRAILER FOR OPERATING THE FAN AND THE MULCHING MEANS, WHEREBY WHEN THE POWER MEANS IS OPERATING THE MULCHING MEANS SHREDS THE LEAVES WHILE PICKING THEM OFF THE STREET AND MOVING THEM SO THEY ARE DRAWN INTO THE HOUSING BY THE PARTIAL VACUUM.
Claim 2
Independent Claim
133 words
A SYSTEM FOR COLLECTING LEAVES FROM A STREET COMPRISING; A TRUCK HAVING AN ENCLOSED HOUSING THEREON; A TRAILER CONNECTABLE TO BE PROPELLED BY THE TRUCK; A FAN ON THE TRAILER AND CONNECTABLE TO THE HOUSING FOR CREATING A PARTIAL VACUUM THEREIN WHEN THE FAN IS OPERATING; MULCHING MEANS ON THE TRAILER AND HAVING A ROTARY SHAFT WITH SHREDDING MEANS FLEXIBLY DEPENDING THEREFROM, SAID SHREDDING MEANS SPACED ALONG THE SHAFT LENGTH AND AROUND ITS CIRCUMFERENCE; MEANS FOR COMMUNICATING SAID PARTIAL VACUUM FROM THE HOUSING TO SAID MULCHING MEANS; POWER MEANS ON THE TRAILER FOR OPERATING THE FAN AND THE MULCHING MEANS, WHEREBY WHEN THE POWER MEANS IS OPERATING THE MULCHING MEANS SHREDS THE LEAVES WHILE PICKING THEM OFF THE STREET AND MOVING THEM SO THEY ARE DRAWN INTO THE HOUSING BY THE PARTIAL VACUUM.
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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) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |