US4131136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller guard for swimming pool cleaning hoses
Assignee: Individual
•
Filing: 1977-10-11
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Granted: 1978-12-26
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Expires: 1997-10-11
Abstract
Abstract A guard for swimming pool cleaning hoses includes a spool having a hole therethrough, the hole dimensioned so as to receive the hose. The periphery of the spool is provided with a concavity, with a plurality of individual roller segments rotatably mounted in the cavity about a shaft, whereby the roller segments produce frictional contact between the hose and a pool being cleaned.
Inventors
- 👤 Joseph J. Sawyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:10
CPC Classifications
F; F16; F16L; F16L57/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
145 words
A guard for swimming pool cleaning hoses comprising: a spool having a hole extending axially therethrough and a concavity about the periphery thereof, said hole dimensioned so as to receive said hose; a plurality of roller segments based about said concavity and positioned therein; means including a flexible shaft extending through all of said roller segments and about said concavity for rotatably supporting said roller means at the periphery of said spool, whereby said roller reduces frictional contact between said hose and a pool being cleaned; and wherein each roller segment comprises a cylinder with said shaft extending axially therethrough; and wherein each end of each cylindrical roller segment is beveled; and wherein said flexible shaft encircles said concavity; and wherein said hole is beveled outwardly away from the center of said spool; and wherein the specific gravity of said rollers is less than one.
Claim 2
Dependent Claim
145 words
A guard for swimming pool cleaning hoses comprising: a spool having a hole extending axially therethrough and a concavity about the periphery thereof, said hole dimensioned so as to receive said hose; a plurality of roller segments based about said concavity and positioned therein; means including a flexible shaft extending through all of said roller segments and about said concavity for rotatably supporting said roller means at the periphery of said spool, whereby said roller reduces frictional contact between said hose and a pool being cleaned; and wherein each roller segment comprises a cylinder with said shaft extending axially therethrough; and wherein each end of each cylindrical roller segment is beveled; and wherein said flexible shaft encircles said concavity; and wherein said hole is beveled outwardly away from the center of said spool; and wherein the specific gravity of said rollers is less than one.
Claim 3
Dependent Claim
22 words
The guard recited in claim 1 wherein said spool comprises opposing sides having an outwardly pointed frustroconical shape with said concavity therebetween.
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) | 1981-12-25 | 1982-06-26 | 1982-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-25 | 1986-06-26 | 1986-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-25 | 1990-06-26 | 1990-12-26 | $7700.00 | Window Closed / Lapsed |