US3600957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillating power unit
Assignee: STOFFEL ENGINEERING CORP
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Filing: 1969-09-18
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Granted: 1971-08-24
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Expires: 1989-09-18
Abstract
Abstract An oscillating power unit for use with a variety of tools and equipment that are vibrated in their operation. An inertial mass rocking about a fixed pivot is driven by an orbital motion eccentric mechanism in such a manner that the effective power is concentrated along one axis of motion and minimized in all other directions. The eccentric drive has a variable throw that is easily adjusted to selectively vary the oscillating power output when the unit is installed in an operating assembly without dismantling the structure, although all moving parts except the drive shaft are fully enclosed.
Inventors
- 👤 Olly O Stoffel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:19
CPC Classifications
B; B02; B02C; B02C19/00; B02C19/16; B06; B06B; B06B1/00; B06B1/10; B06B1/16; B06B1/161; B06B1/162; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/1836; Y10T74/18392; Y10T74/18544; Y10T74/18552; Y10T74/21; Y10T74/211; Y10T74/2116
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
73 words
An oscillating power unit comprising: a hollow casing having enclosing end plates thereon, a drive shaft rotatably mounted in said casing between said end plates, a rocker pin fixed in said casing substantially parallel to and radially offset from said drive shaft, an oscillatory power generating weight element pivotally mounted on said rocker pin and enclosing said drive shaft, and adjustable throw eccentric drive means coupling said drive shaft to said weight element.
Claim 2
Dependent Claim
73 words
An oscillating power unit comprising: a hollow casing having enclosing end plates thereon, a drive shaft rotatably mounted in said casing between said end plates, a rocker pin fixed in said casing substantially parallel to and radially offset from said drive shaft, an oscillatory power generating weight element pivotally mounted on said rocker pin and enclosing said drive shaft, and adjustable throw eccentric drive means coupling said drive shaft to said weight element.
Claim 3
Dependent Claim
30 words
The structure of claim 1 wherein: said drive means include an eccentric lobe on said drive shaft, and a drive block eccentrically mounted on said lobe within said weight element.
Claim 4
Dependent Claim
34 words
The structure of claim 2 wherein: said weight element has a slide block mounted therein for sliding motion substantially radial to said rocker pin, said drive block being rotatably held in said slide block.
Claim 5
Dependent Claim
19 words
The structure of claim 3 wherein: said drive block has clamp means adjustably securing it to said drive shaft.
Claim 6
Dependent Claim
34 words
The structure of claim 3 wherein: said lobe has axially tapered portions, said drive block being in two axially separated elements seating on said tapered portions with clamp means securing the separated elements together.
Claim 7
Dependent Claim
18 words
The structure of claim 5 wherein: one of said end plates has removable elements exposing said clamp means.
Claim 8
Dependent Claim
31 words
The structure of claim 6 including: indexing means on said casing, selectively engageable with said drive block in one position in which said clamp means are aligned with said removable elements.
Claim 9
Dependent Claim
82 words
An oscillating power unit comprising: an oscillator pivotally supported at one side for radial rocking movement around the pivot, said oscillator having a rotatable eccentric means positioned within said oscillator and enclosed thereby and spaced radially from said pivot for providing an orbital movement with a rotating eccentric throw, and said eccentric means has a linear sliding drive connections with said oscillator and within said oscillator for translating said orbital movement to reciprocating, radial rocking movement of said oscillator on said pivot.
Claim 10
Dependent Claim
82 words
An oscillating power unit comprising: an oscillator pivotally supported at one side for radial rocking movement around the pivot, said oscillator having a rotatable eccentric means positioned within said oscillator and enclosed thereby and spaced radially from said pivot for providing an orbital movement with a rotating eccentric throw, and said eccentric means has a linear sliding drive connections with said oscillator and within said oscillator for translating said orbital movement to reciprocating, radial rocking movement of said oscillator on said pivot.
Claim 11
Dependent Claim
89 words
An oscillating power unit as claimed in claim 8 in which: said eccentric means and said pivot each have an axis of rotation, which are parallel and are in the same plane. 10 An oscillating power unit as claimed in claim 9 in which: said oscillator has an opening with opposite linear sides, said sides are parallel with said plane, and an open space between the upper and lower edges of said eccentric means and said oscillator opening allowing linear movement of said eccentric means in said oscillator opening.
Claim 12
Dependent Claim
65 words
An oscillating power unit as claimed in claim 10 in which: said eccentric means has a body with a pair of sides for slidably contacting said sides in said opening, said body has a circular opening with a cylindrical member rotatably positioned therein, and drive shaft means for rotating said cylindrical member having an axis of rotation offset from the axis of said cylindrical member.
Claim 13
Dependent Claim
70 words
An oscillating power unit as claimed in claim 11 in which: said drive shaft means includes a drive shaft with an enlarged cylindrical lobe, the axis of which is offset from the axis of said drive shaft, said lobe is rotatable in said body, and means for fixing said cylindrical member to said lobe at given rotational positions therebetween, whereby the eccentric throw of said lobe may be selectively adjusted.
Claim 14
Dependent Claim
30 words
An oscillating power unit as claimed in claim 12 in which: thE axis of said cylindrical opening in said cylindrical member is offset from the axis of said cylindrical member.
Claim 15
Dependent Claim
62 words
An oscillating power unit as claimed in claim 13 in which: said oscillator has a cylindrical shape with flat end surfaces, a frame for supporting said pivot having flat ends adjacent said flat ends surfaces and a housing having a cylindrical opening for enclosing said oscillator, and said oscillator having oil passages through to said opening at the top and bottom thereof.
Claim 16
Dependent Claim
45 words
An oscillating power unit as claimed in claim 13 in which: said cylindrical member having at least two separatable, axial parts for fitting against the axial ends of said lobe, and clamp means for drawing said parts axially to a fixed position against said lobe.
Claim 17
Dependent Claim
26 words
An oscillating power unit as claimed in claim 15 in which: said cylindrical member having means for separating said separable parts upon releasing said clamp means.
Claim 18
Dependent Claim
69 words
An oscillating power unit as claimed in claim 14 in which: said flat ends of said frame having means for supporting said drive shaft, said cylindrical member has a radial slot in the surface adjacent one of said flat ends, and releasable pin means in said one of said flat ends for selectively projecting into said slot and maintaining orientation of said cylindrical member upon rotation of said lobe.
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) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |