US3845827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable implement,especially motor chain saw
Assignee: Andreas Stihl AG and Co KG
•
Filing: 1972-08-02
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Granted: 1974-11-05
•
Expires: 1992-08-02
Abstract
Abstract A portable tool, especially motor chain saw, which has its handle means through the intervention of spring elastic connecting means connected to the tool, and in which the handle means has at least one compensator connected thereto in such a way that the latter is adapted to oscillate relative to the handle means, the compensator comprising a compensator mass and at least one spring elastic supporting member.
Inventors
- 👤 G Schulin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:13
CPC Classifications
F; F16; F16F; F16F7/00; F16F7/10; F16F7/104; B; B27; B27B; B27B17/00; B27B17/0033
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
130 words
A protable tool, especially motor chain saw, comprising handle means having a mass inertia that is low relative to the mass of the tool, which includes: spring elastic connecting means, said handle means being connected to said tool through the intervention of said spring elastic connecting means, and compensator means comprising a compensator mass and spring elastic supporting means and being connected to said handle means so as to be oscillatable relative thereto, the handle means including a handle frame, and in which said compensator means is so arranged in said handle frame that the longitudinal axis of said compensator means extends in a direction transverse to the longitudinal axis of said handle frame, said handle frame including a handle pipe, said compensator means being arranged within said handle pipe.
Claim 2
Dependent Claim
130 words
A protable tool, especially motor chain saw, comprising handle means having a mass inertia that is low relative to the mass of the tool, which includes: spring elastic connecting means, said handle means being connected to said tool through the intervention of said spring elastic connecting means, and compensator means comprising a compensator mass and spring elastic supporting means and being connected to said handle means so as to be oscillatable relative thereto, the handle means including a handle frame, and in which said compensator means is so arranged in said handle frame that the longitudinal axis of said compensator means extends in a direction transverse to the longitudinal axis of said handle frame, said handle frame including a handle pipe, said compensator means being arranged within said handle pipe.
Claim 3
Dependent Claim
24 words
A portable tool according to claim 1, in which said supporting means are coaxially arranged with regard to an axis of said compensator mass.
Claim 4
Dependent Claim
29 words
A portable tool according to claim 1, in which, at least, one of said spring elastic connecting means and said spring elastic supporting means is made of rubber material.
Claim 5
Dependent Claim
37 words
A portable tool according to claim 1, in which said compensator mass and said spring elastic supporting means form two nearly symmetrical halves respectively having resonance frequencies differing from each other by from 10 to 25 percent.
Claim 6
Dependent Claim
18 words
A portable tool according to claim 1, in which said compensator means include a plurality of compensator masses.
Claim 7
Dependent Claim
44 words
A portable tool according to claim 1, in which the spring elastic supporting means effective relative to said handle means are respectively arranged at places with a low vibration amplitude, whereas the compensator mass is arranged in spaced relationship to said last mentioned places.
Claim 8
Dependent Claim
52 words
A portable tool according to claim 1, in which the handle means include a plurality of handle areas, and in which said compensator means include a plurality of compensators, each area at which said handle means are connected to the tool by said spring elastic connecting means having a compensator associated therewith.
Claim 9
Dependent Claim
26 words
A portable tool according to claim 1, in which said spring elastic supporting means is so shaped as to yield a spring characteristic of varying character.
Claim 10
Dependent Claim
30 words
A portable tool according to claim 1, in which said spring elastic supporting means is so connected to said handle means as to yield a spring characteristic of varying character.
Claim 11
Dependent Claim
62 words
A portable tool according to claim 1, which includes a drive motor having a crank shaft, and in which said compensator means includes a plurality of compensators, at least one of said compensators having its longitudinal axis extending in a direction transverse to the axis of said crank shaft and has degrees of freedom of oscillation transverse to said crank shaft axis.
Claim 12
Dependent Claim
28 words
a portable tool according to claim 10, in which at least one compensator has its longitudinal axis substantially parallel to the axis of rotation of said crank shaft.
Claim 13
Dependent Claim
50 words
A portable tool according to claim 1, in which the handle means include a handle frame, and in which said compensator means is so arranged in said handle frame that the longitudinal axis of said compensator means extends in a direction transverse to the longitudinal axis of said handle frame.
Claim 14
Dependent Claim
19 words
A portable tool according to claim 1, in which said compensator means is coaxially arranged in said handle pipe.
Claim 15
Dependent Claim
24 words
A portable tool according to claim 1, in which the compensator mass of said compensator means has the configuration of a body of revolution.
Claim 16
Dependent Claim
29 words
A portable tool according to claim 14, in which the compensator mass is symmetrical with regard to a plane vertically intersecting one of the axes of said compensator mass.
Claim 17
Dependent Claim
33 words
A portable tool according to claim 1, in which said spring elastic supporting means include rubber buffers, each of the two end faces of said compensator mass having arranged thereon a rubber buffer.
Claim 18
Dependent Claim
22 words
A portable tool according to claim 1, in which said spring elastic supporting means for the compensator mass includes a spring bar.
Claim 19
Dependent Claim
21 words
A portable tool according to claim 1, which includes a mass of foamed synthetic material having the compensator mass embedded therein.
Claim 20
Dependent Claim
19 words
A portable tool according to claim 1, in which the compensator mass is coaxially arranged in a handle pipe.
Claim 21
Dependent Claim
129 words
A portable tool, especially motor chain saw, comprising handle means having a mass inertia that is low relative to the mass of the tool, which includes: spring elastic connecting means, said handle means being connected to said tool through the intervention of said spring elastic connecting means, and compensator means comprising a compensator mass and spring elastic supporting means and being connected to said handle means so as to be oscillatable relative thereto, said spring elastic supporting means including rubber buffers, each of the two end faces of said compensator mass having arranged thereon a rubber buffer, the rubber buffer having that end face thereof which faces away from the compensator mass provided with a recess which with regard to the common axis is rotation-symmetric with said compensator mass.
Claim 22
Dependent Claim
129 words
A portable tool, especially motor chain saw, comprising handle means having a mass inertia that is low relative to the mass of the tool, which includes: spring elastic connecting means, said handle means being connected to said tool through the intervention of said spring elastic connecting means, and compensator means comprising a compensator mass and spring elastic supporting means and being connected to said handle means so as to be oscillatable relative thereto, said spring elastic supporting means including rubber buffers, each of the two end faces of said compensator mass having arranged thereon a rubber buffer, the rubber buffer having that end face thereof which faces away from the compensator mass provided with a recess which with regard to the common axis is rotation-symmetric with said compensator mass.
Claim 23
Dependent Claim
33 words
A portable tool according to claim 20, in which the rubber buffers respectively arranged on each of the two end faces of said compensator mass having the configuration of a body of rotation.
Claim 24
Dependent Claim
29 words
A portable tool according to claim 20, in which the rubber buffer is at that end face thereof which faces away from said compensator mass clamped-in in radial direction.
Claim 25
Dependent Claim
26 words
A portable tool according to claim 20, inwhich the rubber buffer is at that end face thereof which faces away from said compensator mass clamped-in axially.
Claim 26
Dependent Claim
30 words
A portable tool according to claim 20, in which the compensator mass has its end faces respectively provided with extension means, rubber buffers respectively being mounted on said extension means.
Claim 27
Dependent Claim
102 words
A portable tool, especially motor chain saw, comprising handle means having a mass inertia that is low relative to the mass of the tool, which includes: spring elastic connecting means, said handle means being connected to said tool through the intervention of said spring elastic connecting means, and compensator means comprising a compensator mass and spring elastic supporting means and being connected to said handle means so as to be oscillatable relative thereto, said spring elastic supporting means for the compensator mass including a spring bar, said compensator mass having an axial bore, said spring bar being arranged in said axial bore.
Claim 28
Dependent Claim
102 words
A portable tool, especially motor chain saw, comprising handle means having a mass inertia that is low relative to the mass of the tool, which includes: spring elastic connecting means, said handle means being connected to said tool through the intervention of said spring elastic connecting means, and compensator means comprising a compensator mass and spring elastic supporting means and being connected to said handle means so as to be oscillatable relative thereto, said spring elastic supporting means for the compensator mass including a spring bar, said compensator mass having an axial bore, said spring bar being arranged in said axial bore.
Claim 29
Dependent Claim
25 words
A portable tool according to claim 25, in which said axial bore has its central portion provided with a crowned section supporting said spring bar.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |