Patent US3728871A successfully refreshed from Google Patents.
US3728871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling for shafts
Assignee: US Philips Corp
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Filing: 1971-06-15
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Granted: 1973-04-24
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Expires: 1991-06-15
Abstract
Abstract A coupling for shafts comprising a coupling disc and two connecting flanges. A spring is located in one of the flanges for eliminating rotational play in conjunction with a cam on the other connecting flange. Clamping means are provided to clamp said spring free from the cam for assembly purposes.
Inventors
- 👤 C Clijsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:44
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/02; F16D3/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
219 words
A coupling for connecting two approximately collinear shafts, comprising two connecting pieces for mounting one on each shaft and a loose coupling disc fitted therebetween which couples rotary movement of each connecting piece to the other and which has a limited amount of play in two mutually perpendicular directions one each of which is radial with respect to one each of the connecting pieces, wherein a first connecting piece has a chamber which is approximately annular, which is approximately concentrical with the shaft on which the connecting piece is mounted, and which accommodates a C-shaped spring providing resilience to take up rotary play between the coupled shafts, wherein a first end of the spring engages an abutment member fixed to the first connecting piece whilst the second end may be pressed by the resilience of the spring in a tangential direction against a stop which is fixed to the second connecting piece and which protrudes into the chamber through an aperture in the coupling disc, and wherein the first connecting piece is provided near the location of the second end of the spring with a clamping device which is operable from the outside of the connecting piece and which enables the spring to be clamped in a position in which the second end thereof is clear of the stop.
Claim 2
Dependent Claim
219 words
A coupling for connecting two approximately collinear shafts, comprising two connecting pieces for mounting one on each shaft and a loose coupling disc fitted therebetween which couples rotary movement of each connecting piece to the other and which has a limited amount of play in two mutually perpendicular directions one each of which is radial with respect to one each of the connecting pieces, wherein a first connecting piece has a chamber which is approximately annular, which is approximately concentrical with the shaft on which the connecting piece is mounted, and which accommodates a C-shaped spring providing resilience to take up rotary play between the coupled shafts, wherein a first end of the spring engages an abutment member fixed to the first connecting piece whilst the second end may be pressed by the resilience of the spring in a tangential direction against a stop which is fixed to the second connecting piece and which protrudes into the chamber through an aperture in the coupling disc, and wherein the first connecting piece is provided near the location of the second end of the spring with a clamping device which is operable from the outside of the connecting piece and which enables the spring to be clamped in a position in which the second end thereof is clear of the stop.
Claim 3
Dependent Claim
61 words
A coupling as claimed in claim 1 wherein the clamping device comprising a clamping screw which can be screwed into the chamber in the radial direction and which is so arranged that the spring extends between the end of the screw and a fixed block and can be clamped in the desired position against the block by screwing in the screw.
Claim 4
Dependent Claim
59 words
A coupling as claimed in claim 1, in which each of the connecting pieces can be secured to the relevant shaft by means of a bush, the bush of the connecting piece accommodating the chamber being situated on the side of this connecting piece facing the coupling disc and partly extending into a recess in the other connecting piece.
Claim 5
Dependent Claim
168 words
A coupling device for connecting two substantially colinear shafts comprising first and second connecting pieces each piece to be connected to one of said shafts, means for securing each of said connecting pieces to said shafts, a disc for coupling rotary motion of one connecting piece to the other carried between said connecting pieces, a substantially annular chamber arranged within one of said connecting pieces, a C-shaped spring carried within said chamber, an abutment member fixed to said first connecting piece for engaging one end of said C-shaped spring, a stop member fixed to said second connecting piece against which the other end of said spring will be urged by its resilience, said stop extending into said chamber through an aperture in said disc, and a clamping means carried by one of said connecting pieces for clamping said spring in a position in which its end is free from said stop so that when the spring is unclamped its end will engage said stop taking up rotational play.
Claim 6
Dependent Claim
168 words
A coupling device for connecting two substantially colinear shafts comprising first and second connecting pieces each piece to be connected to one of said shafts, means for securing each of said connecting pieces to said shafts, a disc for coupling rotary motion of one connecting piece to the other carried between said connecting pieces, a substantially annular chamber arranged within one of said connecting pieces, a C-shaped spring carried within said chamber, an abutment member fixed to said first connecting piece for engaging one end of said C-shaped spring, a stop member fixed to said second connecting piece against which the other end of said spring will be urged by its resilience, said stop extending into said chamber through an aperture in said disc, and a clamping means carried by one of said connecting pieces for clamping said spring in a position in which its end is free from said stop so that when the spring is unclamped its end will engage said stop taking up rotational play.
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) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |