US3813190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emergency pump system powered by lawnmower
Assignee: Individual
•
Filing: 1972-12-04
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Granted: 1974-05-28
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Expires: 1992-12-04
Abstract
Abstract A high-volume pump system for emergency use (flooded basements, etc.) powered by a rotary lawnmower; the pump system comprises a base for supporting a lawnmower and a high-volume rotary pump mounted in the base below the lawnmower. A coupling adapter is included in the system and is fastened to the lawnmower blade; the coupling adapter connects the lawnmower to the pump to afford a short, direct driving connection for operating the pump.
Inventors
- 👤 F Keating
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:02
CPC Classifications
F; F04; F04B; F04B17/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
214 words
A high volume pump system for emergency use, powered by a rotary lawnmower of the like comprising a frame supported on a plurality of wheels, an engine mounted on the frame and having a vertically oriented engine shaft, and a horizontally extending rotary cutting blade mounted below and connected to the engine shaft, said pump system comprising: a base, including a plurality of wheel support members for supporting the wheels of a lawnmower and an access opening; adjustably positioned blocking means for positioning and retaining the lawnmower in stationary position on the base, supported by the base, with each wheel on one of the wheel support members; a high-volume rotary pump, having a drive shaft, mounted within the base immediately below the lawnmower, with the pump shaft aligned coaxially with and extending upwardly toward the engine shaft; an input conduit and an output conduit, each connected to the pump and each extending to the outside of said base; drive adapter means, releasably connectable to the lawnmower blade and releasably connectable to the pump shaft for completing a direct driving connection from the lawnmower engine to the rotary pump; an indicator means, on the pump shaft and the drive adapter means, indicating the relative alignment thereof and viewable through the access opening in said base.
Claim 2
Dependent Claim
214 words
A high volume pump system for emergency use, powered by a rotary lawnmower of the like comprising a frame supported on a plurality of wheels, an engine mounted on the frame and having a vertically oriented engine shaft, and a horizontally extending rotary cutting blade mounted below and connected to the engine shaft, said pump system comprising: a base, including a plurality of wheel support members for supporting the wheels of a lawnmower and an access opening; adjustably positioned blocking means for positioning and retaining the lawnmower in stationary position on the base, supported by the base, with each wheel on one of the wheel support members; a high-volume rotary pump, having a drive shaft, mounted within the base immediately below the lawnmower, with the pump shaft aligned coaxially with and extending upwardly toward the engine shaft; an input conduit and an output conduit, each connected to the pump and each extending to the outside of said base; drive adapter means, releasably connectable to the lawnmower blade and releasably connectable to the pump shaft for completing a direct driving connection from the lawnmower engine to the rotary pump; an indicator means, on the pump shaft and the drive adapter means, indicating the relative alignment thereof and viewable through the access opening in said base.
Claim 3
Dependent Claim
39 words
A lawnmower-powered high-volume emergency pump system, according to claim 1, in which said drive adapter means includes a downwardly tapered adapter shaft which fits into a complementary tapered drive socket in the upper end of said pump drive shaft.
Claim 4
Dependent Claim
61 words
A lawnmower-powered high-volume emergency pump system, according to claim 1, in which said drive adapter means comprises a central adapter plate, a pair of extension plates each adjustably mounted on one end of said central adapter plate to accommodate mower blades of varying lengths, and a mower blade receptacle extending longitudinally of said central adapter plate anD both said extension plates.
Claim 5
Dependent Claim
38 words
A lawnmower-powered high-volume emergency pump system, according to claim 3, in which said adapter means further comprises a pair of releasable retainers, each mounted on one of said extension plates, for latching the mower blade into said receptacle.
Claim 6
Dependent Claim
60 words
A lawnmower-powered high-volume emergency pump system, according to claim 3, in which said blocking means comprises a plurality of individual blocking members, one for each wheel support member, each blocking member being mountable at any one of a plurality of different positions on its wheel support member to conform the pump system to lawnmowers of varying size and wheel configuration.
Claim 7
Dependent Claim
40 words
A lawnmower-powered high-volume emergency pump system, according to claim 1, in which the access opening allows view of the drive adapter and the pump shaft to determine when the drive adapter and pump shaft are aligned both angularly and laterally.
Claim 8
Dependent Claim
36 words
A lawnmower-powered high-volume emergency pump system, according to claim 1, in which the pump shaft is provided with a plurality of external indicators and the drive adapter means is provided with at least one external indicator.
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) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |