US5031325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand-held tool with a cutting or grinding disk
Assignee: Hilti AG
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Filing: 1990-07-02
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Granted: 1991-07-16
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Expires: 2010-07-02
Abstract
Abstract A hand-held tool for driving a cutting or grinding disk includes a housing and a protection hood with a sleeve-shaped extension detachable connected to the housing. A receptacle is mounted on the housing for releaseably holding the sleeve-shaped extension. The receptacle is formed as a slotted sleeve so that it has a variable diameter. The diameter is changed by moving circumferential ends of the sleeve toward or away from one another. The displacement of the sleeve ends can be effected by a lever pivotly mounted on the ends.
Inventors
- 👤 Manfred Walter
- 👤 Wolfgang Erdt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:11
CPC Classifications
B; B24; B24B; B24B55/00; B24B55/04; B24B55/05; B24B55/052; B24B23/00; B24B23/02; B24B23/028
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
84 words
A hand-held tool for driving a cutting or grinding disk comprises a housing (1), and a protective hood (4) detachable connected to said housing and arranged to partially surround the disk, said protective hood (4) comprises a sleeve-shaped extension (4a) projecting from said hood and detachable connectable with said housing (1), wherein the improvement comprises that said housing (1) includes a receptacle (5) for receiving and holding said sleeve-shaped extension (4a), and said receptacle has a variable diameter for releasing and securing said extension.
Claim 2
Dependent Claim
84 words
A hand-held tool for driving a cutting or grinding disk comprises a housing (1), and a protective hood (4) detachable connected to said housing and arranged to partially surround the disk, said protective hood (4) comprises a sleeve-shaped extension (4a) projecting from said hood and detachable connectable with said housing (1), wherein the improvement comprises that said housing (1) includes a receptacle (5) for receiving and holding said sleeve-shaped extension (4a), and said receptacle has a variable diameter for releasing and securing said extension.
Claim 3
Dependent Claim
31 words
A hand-held tool, as set forth in claim 1, wherein said receptacle is a slotted sleeve (5) having circumferential ends (5a, 5b) displaceable relative to one another for varying the diameter.
Claim 4
Dependent Claim
38 words
A hand-held tool, as set forth in claim 2, wherein a lever is connected to said circumferential ends (5a, 5b) of the slotted sleeve (5) for effecting displacement of said sleeve (4) for releasing and securing said extension.
Claim 5
Dependent Claim
73 words
A hand-held tool, as set forth in claim 2, wherein said sleeve has a circumferentially extending part with an end (5a, 5b) on each opposite end of said part, said ends projecting radially outwardly from said part, said radially extending ends (5a, 5b) being displaceable toward one another for securing said extension (4a) and being displaceable away from one another for releasing said extension so that said protective hood (4) can be repositioned.
Claim 6
Dependent Claim
45 words
A hand-held tool, as set forth in claim 4, wherein said circumferential extending part of said sleeve (5) is secured to said housing (1) over an angularly extending part thereof with the remaining part being separate from said housing and containing said ends (5a, 5b).
Claim 7
Dependent Claim
42 words
A hand-held tool, as set forth in claim 5, including a lever (7) pivotally connected to said ends (5a, 5b) and being displaceable between a first position for tightly clamping said extension (4a) and a second position for releasing said extension (4a).
Claim 8
Dependent Claim
76 words
A hand-held tool, as set forth in claim 6, wherein said lever has a first pin pivotally mounting said lever on said ends (5a, 5b) and a pair of second pins (8) each in bearing contact with a different one of that said ends (5a, 5b), and said ends having inwardly beveled end portions arranged to be contacted by said second pins (8) when said lever is pivoted from the first position into the second position.
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) | 1994-07-15 | 1995-01-14 | 1995-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-15 | 1999-01-14 | 1999-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-15 | 2003-01-14 | 2003-07-16 | $7700.00 | Window Closed / Lapsed |