US4458368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plunger with anti-splash shield
Assignee: Individual
•
Filing: 1982-10-04
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Granted: 1984-07-10
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Expires: 2002-10-04
Abstract
Abstract A device for clearing obstructed soil pipes without splashing water from a sink or toilet bowl comprises an elongate handle having a plunger member at a lower end and an anti-splash shield having a central passage to receive the elongate handle. The shield has a curvilinear circumference and includes an expandable resilient means at the outer edge thereof for transforming the shield from a folded condition to an expanded condition. Thus, the outer edge of the shield can sealingly engage the inner surface of the sink or toilet bowl to prevent water from splashing as the plunge is operated.
Inventors
- 👤 Wallace M. Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:08
CPC Classifications
E; E03; E03D; E03D9/00; E03C; E03C1/00; E03C1/12; E03C1/30
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
133 words
In a device for engaging the inner surface of a sink or toilet bowl to clear an obstructed soil pipe including an elongate handle having a plunger member removably secured to the lower end thereof that sealingly engages the inner surface of the bowl, the improvement comprising a shield having a central passage to slidably engage the elongate handle and position the shield above the plunger member on the elongate handle, a curvilinear outer edge, a plurality of folds that extend radially from the central passage to the outer edge and resilient means along the outer edge for engaging the inner surface of the bowl to prevent water from splashing out of the bowl as the elongate handle is moved vertically to compress the plunger member against the inner surface of the bowl.
Claim 2
Dependent Claim
133 words
In a device for engaging the inner surface of a sink or toilet bowl to clear an obstructed soil pipe including an elongate handle having a plunger member removably secured to the lower end thereof that sealingly engages the inner surface of the bowl, the improvement comprising a shield having a central passage to slidably engage the elongate handle and position the shield above the plunger member on the elongate handle, a curvilinear outer edge, a plurality of folds that extend radially from the central passage to the outer edge and resilient means along the outer edge for engaging the inner surface of the bowl to prevent water from splashing out of the bowl as the elongate handle is moved vertically to compress the plunger member against the inner surface of the bowl.
Claim 3
Dependent Claim
25 words
A device according to claim 1 wherein said shield includes a ring portion about the central passage for frictionally, but slidably, engaging the elongate handle.
Claim 4
Dependent Claim
36 words
A device according to claim 1 wherein said resilient means comprises an expandable band to hold the outer edge of the shield against the inner surface of the bowl as the elongate handle is moved vertically.
Claim 5
Dependent Claim
43 words
A device according to claim 1 including means for slidably receiving the ends of said resilient means to allow the circumference of said shield to be adjusted and the outer edge to conform to the shape of the inner surface of the bowl.
References Cited (Backward Citations)
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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) | 1987-07-10 | 1988-01-09 | 1988-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-10 | 1992-01-09 | 1992-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-10 | 1996-01-09 | 1996-07-10 | $7700.00 | Window Closed / Lapsed |