US3833971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable clamps
Assignee: Waagner Biro AG
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Filing: 1972-09-15
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Granted: 1974-09-10
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Expires: 1992-09-15
Abstract
Abstract A cable clamp adapted for use in cable-stretching installations. The cable clamp includes stationary and swingable clamp assemblies where the swingable assembly is connected to the stationary assembly for swinging movement with respect thereto between clamping and unclamping positions. The stationary assembly is formed as a power cylinder for a piston guided for movement toward the swingable assembly and urging a lining which directly engages the cable toward a corresponding lining carried by the swingable assembly.
Inventors
- 👤 R Grasman
- 👤 W Hell
- 👤 W Mullner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:02
CPC Classifications
F; F16; F16G; F16G11/00; F16G11/04; F16G11/044; F16G11/048; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3936; Y10T24/44; Y10T24/44068
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
343 words
In a clamp for clamping a cable or the like during a stretching operation such as a cable-stretching operation, stationary clamp means having a lining adapted to engage a cable or the like, swingable clamp means swingably connected to said stationary clamp means for movement to a clamping position and having a lining adapted to engage a cable or the like at a part thereof diametrically opposed to the lining of said stationary clamp means, said linings respectively having inner concave surfaces each extending approximately 180* around a given axis when said swingable clamp means is in said clamping position thereof, said stationary clamp means having in part the construction of a power cylinder and including a pair of opposed walls forming part of said cylinder and extending parallel to and situated at equal distances on opposite sides of the axis of said cylinder, said cylinder axis being perpendicular to said given axis, and said stationary clamp means accommodating in said cylinder a slidable piston which is operatively connected with said lining of said stationary clamp means for urging the latter lining along the axis of said cylinder toward the lining of said swingable clamp means when said swingable clamp means is in said clamping position and fluid under pressure is introduced into said cylinder of said stationary clamp means, said swingable clamp means having when in said clamping position thereof a pair of opposed portions which are respectively in line with said opposed walls of said stationary clamp means, lock means operatively connected with said stationary clamp means and engaging one of said opposed portions of said swingable clamp means for releasably locking said swingable clamp means in said clamping position thereof with respect to said stationary clamp means, and pivot means swingably connecting the other of said opposed portions of said swingable clamp means, which is in line with the other of said opposed walls of said stationary clamp means, to said stationary clamp means for swingable movement with respect thereto about an axis which is parallel to said given axis.
Claim 2
Dependent Claim
343 words
In a clamp for clamping a cable or the like during a stretching operation such as a cable-stretching operation, stationary clamp means having a lining adapted to engage a cable or the like, swingable clamp means swingably connected to said stationary clamp means for movement to a clamping position and having a lining adapted to engage a cable or the like at a part thereof diametrically opposed to the lining of said stationary clamp means, said linings respectively having inner concave surfaces each extending approximately 180* around a given axis when said swingable clamp means is in said clamping position thereof, said stationary clamp means having in part the construction of a power cylinder and including a pair of opposed walls forming part of said cylinder and extending parallel to and situated at equal distances on opposite sides of the axis of said cylinder, said cylinder axis being perpendicular to said given axis, and said stationary clamp means accommodating in said cylinder a slidable piston which is operatively connected with said lining of said stationary clamp means for urging the latter lining along the axis of said cylinder toward the lining of said swingable clamp means when said swingable clamp means is in said clamping position and fluid under pressure is introduced into said cylinder of said stationary clamp means, said swingable clamp means having when in said clamping position thereof a pair of opposed portions which are respectively in line with said opposed walls of said stationary clamp means, lock means operatively connected with said stationary clamp means and engaging one of said opposed portions of said swingable clamp means for releasably locking said swingable clamp means in said clamping position thereof with respect to said stationary clamp means, and pivot means swingably connecting the other of said opposed portions of said swingable clamp means, which is in line with the other of said opposed walls of said stationary clamp means, to said stationary clamp means for swingable movement with respect thereto about an axis which is parallel to said given axis.
Claim 3
Dependent Claim
13 words
The combination of claim 1 and wherein said piston is a double-acting piston.
Claim 4
Dependent Claim
34 words
The combination of claim 1 and wherein a fluid pressure means is operatively connected with said stationary and swingable clamp means for swinging said swingable clamp means with respect to said stationary clamp means.
Claim 5
Dependent Claim
29 words
The combination of claim 1 and fluid-pressure means operatively connected with said lock means and said stationary clamp means for displacing said locking means between locking and unlocking positions.
Claim 6
Dependent Claim
27 words
The combination of claim 1 and safety means preventing operation of said piston unless said swingable lock means is locked with respect to said stationary lock means.
Claim 7
Dependent Claim
71 words
The combination of claim 1 and wherein said stationary clamp means includes a guide member carrying said lining of said stationary clamp means and guided by said opposed walls of said stationary clamp means for movement toward and away from said lining of said swingable clamp means, when said swingable clamp means is in said clamping position thereof, said piston being operatively connected to said guide member for moving the latter.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |