US3736614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrading device for attachment to electric knife drive
Assignee: Individual
•
Filing: 1972-01-10
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Granted: 1973-06-05
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Expires: 1992-01-10
Abstract
Abstract A portable power-driven abrading or scouring device has two arms adapted to be connected at one end to power means for reciprocating at least one of the arms with respect to the other, the arms having at their outer ends a pair of spaced pivot means, preferably in the form of balls. The pivot means are spaced laterally and are connected to an abrasive holder. When the pivot means are balls, the abrasive holder preferably is a block with sockets in which the balls are seated, to provide, within limits, two degrees of freedom.
Inventors
- 👤 S Crostic
- 👤 W Froelich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:23
CPC Classifications
A; A47; A47L; A47L17/00; A47L17/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
105 words
A power driven abrading or scouring device comprising two arms adapted to be connected at one end to power means for reciprocating at least one of said arms with respect to the other, said arms being laterally spaced apart at another end and each having, at said other end, pivot means in the form of a ball, said balls being laterally spaced from one another; an abrasive holder in the form of a block having sockets complementary to said balls and in which said balls are seated whereby said block is pivotally connected to said arms, and means for mounting abrasive on said abrasive holder.
Claim 2
Dependent Claim
105 words
A power driven abrading or scouring device comprising two arms adapted to be connected at one end to power means for reciprocating at least one of said arms with respect to the other, said arms being laterally spaced apart at another end and each having, at said other end, pivot means in the form of a ball, said balls being laterally spaced from one another; an abrasive holder in the form of a block having sockets complementary to said balls and in which said balls are seated whereby said block is pivotally connected to said arms, and means for mounting abrasive on said abrasive holder.
Claim 3
Dependent Claim
94 words
A power driven abrading device comprising two arms adapted to be connected at one end to power means for reciprocating at least one of said arms with respect to the other, said arms being laterally spaced apart at another end and each having, at said other end, pivot means, said pivot means being spaced laterally from one another, and an abrasive holder pivotally connected to both said pivot means, said arms pivot means being balls secured to said arms, and said abrasive holder comprising a block having sockets in which said balls are seated.
Claim 4
Dependent Claim
94 words
A power driven abrading device comprising two arms adapted to be connected at one end to power means for reciprocating at least one of said arms with respect to the other, said arms being laterally spaced apart at another end and each having, at said other end, pivot means, said pivot means being spaced laterally from one another, and an abrasive holder pivotally connected to both said pivot means, said arms pivot means being balls secured to said arms, and said abrasive holder comprising a block having sockets in which said balls are seated.
Claim 5
Dependent Claim
108 words
A power driven abrading device comprising two arms adapted to be connected at one end to power means for reciprocating at least one of said arms with respect to the other, said arms being laterally spaced apart at another end and each having, at said other end, pivot means, said pivot means being spaced laterally from one another, and an abrasive holder having means complementary to said arms pivot means whereby said abrasive holder is pivotally connected to said arms, each of said pivot means comprising one elEment of a ball and socket and each of said complementary pivot means comprising the other element of ball and socket.
Claim 6
Dependent Claim
108 words
A power driven abrading device comprising two arms adapted to be connected at one end to power means for reciprocating at least one of said arms with respect to the other, said arms being laterally spaced apart at another end and each having, at said other end, pivot means, said pivot means being spaced laterally from one another, and an abrasive holder having means complementary to said arms pivot means whereby said abrasive holder is pivotally connected to said arms, each of said pivot means comprising one elEment of a ball and socket and each of said complementary pivot means comprising the other element of ball and socket.
Claim 7
Dependent Claim
124 words
An abrading or scouring device for selective mounting on and demounting from a portable power head of the type used to drive reciprocating carving blades, comprising two arms adapted to be connected at one end to said power head for reciprocating at least one of said arms in respect to the other, said arms at said end being closely spaced and parallel to one another, said arms being laterally spaced apart at a second end remote from said first end, each of said arms having at said second end pivot means laterally spaced from one another; abrasive holder means having means complementary to said arms pivot means for pivotally mounting said abrasive holder means on said arms, and abrasive mounted on said abrasive holder.
Claim 8
Dependent Claim
124 words
An abrading or scouring device for selective mounting on and demounting from a portable power head of the type used to drive reciprocating carving blades, comprising two arms adapted to be connected at one end to said power head for reciprocating at least one of said arms in respect to the other, said arms at said end being closely spaced and parallel to one another, said arms being laterally spaced apart at a second end remote from said first end, each of said arms having at said second end pivot means laterally spaced from one another; abrasive holder means having means complementary to said arms pivot means for pivotally mounting said abrasive holder means on said arms, and abrasive mounted on said abrasive holder.
Claim 9
Dependent Claim
18 words
The device of claim 4 wherein the abrasive holder is selectively mountable on and demountable from said arms.
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) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |