US3722192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grass-catching and bagging apparatus for rotary lawn-mowers
Assignee: Individual
•
Filing: 1971-09-16
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Granted: 1973-03-27
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Expires: 1991-09-16
Abstract
Abstract A grass-catching and bagging apparatus for rotary lawn-mowers having a duct discharging an air stream and entrained grasscuttings. A perforate cowl is connected to the duct by a throat and has a depending flange for attaching a bag thereon. A deflector vane under the cowl leads from the throat and has an end curving downwardly centrally of the cowl and the bag thereon to direct the stream and cuttings down into the bag where the enlarged space expands and dissipates the air stream, drops the cuttings into the bag, and permits the air to rise upwardly around the downwardly centrally deflected air stream and escape through the perforate cowl. An imperforate hood over the cowl directs air escaping from the cowl endwise and sidewise. Back and side-walls on the hood deflect the escaping air downwardly while the open front deflects it forwardly. A sling supports the load in the bag attached to the cowl and sling side-walls contain the bag thereon. The sling and side-walls have perforate bottom portions and the downwardly deflected air from the hood is received within the sling and side-walls and is vented via their perforate bottom portions adjacent the ground remote from the breathing area of a user.
Inventors
- 👤 T Corbett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:08
CPC Classifications
A; A01; A01D; A01D43/00; A01D43/06; A01D43/063; A01D43/0636; A01D2101/00; A01D34/00; A01D34/01; A01D34/412; A01D34/63
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
197 words
A grass-cutting catcher and bagger apparatus for rotary lawnmowers having revolving cutter and fan blades in a housing equipped with a delivery duct leading from the housing for emitting a fluid stream of air and entrained air-borne grasscuttings, comprising, a cowl havinG a perforate top equipped with a throat opening for connecting on the delivery duct of the mower so that air and cuttings emitting from the duct are delivered within the cowl, a peripheral flange depending from said cowl for attaching a collecting bag thereon, a deflector vane in said cowl leading from the top of said throat to a point about centrally in said cowl and terminating thereat in a downwardly curving end for guiding the fluid stream of air and cuttings downwardly into a bag attached below said cowl, and means for supporting said cowl on a mower; said cowl with a bag attached on said flange allowing expansion, dissipation, and deceleration of the fluid stream from the mower to a slower moving air mass thereby disentraining the cuttings to fall into the bag and evacuating the air mass upwardly through said perforate cowl around the fluid stream being deflected by said deflector vane.
Claim 2
Dependent Claim
197 words
A grass-cutting catcher and bagger apparatus for rotary lawnmowers having revolving cutter and fan blades in a housing equipped with a delivery duct leading from the housing for emitting a fluid stream of air and entrained air-borne grasscuttings, comprising, a cowl havinG a perforate top equipped with a throat opening for connecting on the delivery duct of the mower so that air and cuttings emitting from the duct are delivered within the cowl, a peripheral flange depending from said cowl for attaching a collecting bag thereon, a deflector vane in said cowl leading from the top of said throat to a point about centrally in said cowl and terminating thereat in a downwardly curving end for guiding the fluid stream of air and cuttings downwardly into a bag attached below said cowl, and means for supporting said cowl on a mower; said cowl with a bag attached on said flange allowing expansion, dissipation, and deceleration of the fluid stream from the mower to a slower moving air mass thereby disentraining the cuttings to fall into the bag and evacuating the air mass upwardly through said perforate cowl around the fluid stream being deflected by said deflector vane.
Claim 3
Dependent Claim
68 words
In an apparatus as set forth in claim 1, an imperforate hood lying above and spaced from said perforate cowl constituting a baffle to deflect air venting from said perforate cowl from an upward direction in front of a user to a transverse direction relative to a user to prevent vented air from rising in front of a user in his path as he travels behind the mower.
Claim 4
Dependent Claim
62 words
In an apparatus as set forth in claim 1, paired bars comprising a portion of said means for supporting said cowl, and a sling suspended on said bars between a point adjacent the mower and a point remote from the mower so as to underlie said cowl and a bag attached thereto for supporting the weight of the cuttings in the bag.
Claim 5
Dependent Claim
27 words
In an apparatus as set forth in claim 3, side-walls on said sling to contain a bag below said cowl against sidewise slipping movement on said sling.
Claim 6
Dependent Claim
168 words
In an apparatus as set forth in claim 4, said sling having a perforate bottom portion and said sling side-walls having a perforate bottom portion; an imperforate hood overlying said perforate cowl in spaced relationship thereto to deflect air emitting upwardly from said cowl to sidewise and endwise travel relative of said cowl, a back-wall on said hood for preventing rearwardly deflected air away from a user and to direct same downwardly into said sling between said side-walls and the outside of a bag attached on said cowl, side-walls on said hood for preventing sidewise deflected air from a user and to direct same downwardly into said sling and said sling side-walls and outside a bag attached on said cowl; said front on said hood being open to direct front-endwise deflected air away from a user; said downwardly deflected air inside said sling and said sling side-walls escaping at said perforate bottom portions thereof adjacent the ground and the feet of a user remote from his breathing area.
Claim 7
Dependent Claim
72 words
In an apparatus as set forth in claim 1, an imperforate hood over said perforate cowl lying in spaced relationship to said perforate cowl, said hood having side-walls, a back-wall remote from said cowl throat, and an open front adjacent said cowl throat, said hood constituting a baffle for directing air escaping from said perforate cowl forwardly at said open front and downwardly at said back and side-walls away from a user.
Claim 8
Dependent Claim
39 words
In an apparatus as set forth in claim 6, said side-walls being cut-away adjacent said open front of said hood to direct air escaping from said perforate cowl under said hood in a downwardly-forwardly direction adjacent said open front.
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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) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |