Patent US4094037A successfully refreshed from Google Patents.
US4094037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wiping device
Assignee: Individual
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Filing: 1976-11-24
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Granted: 1978-06-13
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Expires: 1996-11-24
Abstract
Abstract A wiping device includes an elongated wiping blade of elastically yieldable material, a handle, and an arrangement for replaceably mounting the blade on the handle, including an elongated mounting member of U-shaped cross-section which is supported on the handle and which bounds an elongated cavity and an elongated slot communicating the cavity with the exterior of the mounting member. The wiping blade has two marginal portions extending longitudinally of the wiping blade and each having a pair of wiping edges. The thickness of each of the marginal portions exceeds that of a central portion, and the width of the cavity exceeds that of the slot so that, when one of the marginal portions is received in the cavity and the other marginal portion can be located exteriorly of the mounting member, the latter is used for wiping and the former prevents extraction of the wiping blade through the slot. The mounting member may have arms which extend to different distances from the bight interconnecting such arms so that each of the arms reinforces the wiping blade against the bending to a different extent. The marginal faces of the wiping blade which face away from one another may be concave to improve the wiping action of the wiping edges.
Inventors
- 👤 Heinrich Karpp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:43
CPC Classifications
A; A47; A47L; A47L1/00; A47L1/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
201 words
A wiping device, particularly for cleaning windows and the like, comprising an elongated wiping blade having a pair of longitudinal marginal portions each having a pair of edges bounding a respective marginal face and spaced a predetermined distance from one another, and a central portion intermediate said marginal portions, said wiping blades having a thickness at said central portion which is smaller than said distance, and said wiping blade tapering in a direction from adjacent each of said marginal faces toward said central portion; a handle; and means for replaceably mounting said blade on said handle in four different orientations in each of which one of said edges is in a working position for use as a wiping edge, including wall means bounding an elongated cavity which is open at least at one longitudinal end thereof, and an elongated slot communicating said cavity with the exterior of said wall means along said cavity, said cavity being adapted to receive either one of said marginal portions of said blade whereas said central portion is accommodated in said slot and the other marginal portion extends beyond said wall means to the exterior thereof for said one edge thereof to be used for wiping.
Claim 2
Dependent Claim
201 words
A wiping device, particularly for cleaning windows and the like, comprising an elongated wiping blade having a pair of longitudinal marginal portions each having a pair of edges bounding a respective marginal face and spaced a predetermined distance from one another, and a central portion intermediate said marginal portions, said wiping blades having a thickness at said central portion which is smaller than said distance, and said wiping blade tapering in a direction from adjacent each of said marginal faces toward said central portion; a handle; and means for replaceably mounting said blade on said handle in four different orientations in each of which one of said edges is in a working position for use as a wiping edge, including wall means bounding an elongated cavity which is open at least at one longitudinal end thereof, and an elongated slot communicating said cavity with the exterior of said wall means along said cavity, said cavity being adapted to receive either one of said marginal portions of said blade whereas said central portion is accommodated in said slot and the other marginal portion extends beyond said wall means to the exterior thereof for said one edge thereof to be used for wiping.
Claim 3
Dependent Claim
213 words
A wiping device, particularly for cleaning windows and the like, comprising an elongated wiping blade having a pair of longitudinal marginal portions each having a pair of edges spaced a predetermined distance from one another bounding a respective marginal face which is concave between the respective pair of edges, said wiping blade further having a central portion intermediate said marginal portions, said wiping blade having a thickness which is smaller than said distance at said central position, and said wiping blade tapering in a direction from adjacent each of said marginal faces toward said central portion; a handle; and means for replaceably mounting said blade on said handle in four different orientations in each of which one of said edges is in a working position for use as a wiping edge, including wall means bounding an elongated cavity which is open at least at one longitudinal end thereof, and an elongated slot communicating said cavity with the exterior of said wall means along said cavity, said cavity being adapted to receive either one of said marginal portions of said blade whereas said central portion is accommodated in said slot and the other marginal portion extends beyond said wall means to the exterior thereof for said one edge thereof to be used for wiping.
Claim 4
Dependent Claim
213 words
A wiping device, particularly for cleaning windows and the like, comprising an elongated wiping blade having a pair of longitudinal marginal portions each having a pair of edges spaced a predetermined distance from one another bounding a respective marginal face which is concave between the respective pair of edges, said wiping blade further having a central portion intermediate said marginal portions, said wiping blade having a thickness which is smaller than said distance at said central position, and said wiping blade tapering in a direction from adjacent each of said marginal faces toward said central portion; a handle; and means for replaceably mounting said blade on said handle in four different orientations in each of which one of said edges is in a working position for use as a wiping edge, including wall means bounding an elongated cavity which is open at least at one longitudinal end thereof, and an elongated slot communicating said cavity with the exterior of said wall means along said cavity, said cavity being adapted to receive either one of said marginal portions of said blade whereas said central portion is accommodated in said slot and the other marginal portion extends beyond said wall means to the exterior thereof for said one edge thereof to be used for wiping.
Claim 5
Dependent Claim
16 words
A device as defined in claim 1, wherein said blade is of an elastically yieldable material.
Claim 6
Dependent Claim
30 words
A device as defined in claim 1, wherein said wall means includes an elongated mounting member having a U-shaped cross-section, and means for supporting said mounting member on said handle.
Claim 7
Dependent Claim
67 words
A device as defined in claim 4, wherein said mounting member has two arms and a bight interconnecting said two arms, one of said arms being longer than the other so that said arms which straddle said one marginal portion contact said central portion up to different distances from said bight, thereby reinforcing said blade to different extents against bending transversely of the blade in opposite directions.
Claim 8
Dependent Claim
14 words
A device as defined in claim 4, wherein said mounting member is resiliently yieldable.
Claim 9
Dependent Claim
50 words
A device as defined in claim 4, wherein said marginal portions diverge from that of said central portion; and wherein said slot has a width which is smaller than that of said cavity, so that said one marginal portion is prevented from being extracted from said cavity through said slot.
Claim 10
Dependent Claim
34 words
A device as defined in claim 4, wherein said supporting means includes at least two clamping members mounted on said handle and embracing said mounting member so as to clamp the same between themselves.
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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) | 1981-06-12 | 1981-12-12 | 1982-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-12 | 1985-12-12 | 1986-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-12 | 1989-12-12 | 1990-06-13 | $7700.00 | Window Closed / Lapsed |