US3572784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick-coupling device of the spring clamp type
Assignee: Individual
•
Filing: 1969-03-24
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Granted: 1971-03-30
•
Expires: 1989-03-24
Abstract
Abstract A quick-coupling device whereby various tools and the like having half-round adapter ends may be quickly clamped to and quickly unclamped from a shaft or pole, the same being characterized by a pair of yokelike brackets pivotally connected to the shaft or pole, a lever attached to one bracket and pivotal therewith, the lever having tool clamping means adjacent one end thereof which is located between the brackets, the other end of the lever being adapted to be moved toward and away from the shaft or pole, and a compression spring disposed between the other bracket and the tool clamping means of the lever to urge such means into clamping engagement with an adapter end of a tool.
Inventors
- 👤 Andrew L Pansini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:47
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4061; A47L11/4072; A47L9/00; A47L9/32; A47L9/325; E; E04; E04H; E04H4/00; E04H4/14; E04H4/16; E04H4/1618; E04H4/1636; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7062; Y10T403/71
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
128 words
Apparatus whereby swimming pool cleaning heads or the like may be quickly connected to and disconnected from a swimming pool service pole or the like, said apparatus comprising a pole, a yokelike first bracket pivotally connected to said pole inwardly from one end thereof, a yokelike second bracket pivotally connected to said pole adjacent said one end thereof, an elongated lever fixedly attached to said first bracket and extending longitudinally of said pole, a pressure applicator member carried by said lever and located between said brackets, and a spring maintained under compression by said second bracket and the portion of said lever carrying said applicator member and operable to urge the latter against the adapter end of a cleaning head disposed between said pole and said applicator member.
Claim 2
Dependent Claim
128 words
Apparatus whereby swimming pool cleaning heads or the like may be quickly connected to and disconnected from a swimming pool service pole or the like, said apparatus comprising a pole, a yokelike first bracket pivotally connected to said pole inwardly from one end thereof, a yokelike second bracket pivotally connected to said pole adjacent said one end thereof, an elongated lever fixedly attached to said first bracket and extending longitudinally of said pole, a pressure applicator member carried by said lever and located between said brackets, and a spring maintained under compression by said second bracket and the portion of said lever carrying said applicator member and operable to urge the latter against the adapter end of a cleaning head disposed between said pole and said applicator member.
Claim 3
Dependent Claim
24 words
The apparatus of claim 1, including cleaner head adapter end support means disposed at each side of said pole within each of said brackets.
Claim 4
Dependent Claim
89 words
The apparatus of claim 2, said pressure applicator member being in the form of a bolt having a threaded lower end, a shank, and a head, said lower end extending through said lever and being adjustable with respect thereto by set nuts disposed at opposite sides of said lever in threaded relation with said lower end, said shank extending through through an aperture formed in the cross portion of said second bracket, and said head being disposed out outwardly of said cross portion and being larger than said aperture.
Claim 5
Dependent Claim
36 words
The apparatus of claim 3, said bolt having the shank and head thereof bent away from said one end of said pole, and said second bracket being inclined away from said one end of said pole.
Claim 6
Dependent Claim
132 words
Apparatus whereby swimming pool cleaning heads or the like may be quickly connected to and disconnected from a swimming pool service pole or the like, an elongated lever extending longitudinally of said pole and connected thereto for pivotal movement about an axis, the axis of pivotal connection between said pole and said lever extending transversely through said pole, said lever having pressure applicator means extending therefrom toward said pole and adapted to engage the adapter end of a cleaning head disposed between said pole and said means, and a compression spring and means carried by said pole for maintaining the spring under compression including the portion of said lever carrying said applicator means and a reaction member having a pivotal connection with said pole longitudinally spaced along said pole from said axis.
Claim 7
Dependent Claim
132 words
Apparatus whereby swimming pool cleaning heads or the like may be quickly connected to and disconnected from a swimming pool service pole or the like, an elongated lever extending longitudinally of said pole and connected thereto for pivotal movement about an axis, the axis of pivotal connection between said pole and said lever extending transversely through said pole, said lever having pressure applicator means extending therefrom toward said pole and adapted to engage the adapter end of a cleaning head disposed between said pole and said means, and a compression spring and means carried by said pole for maintaining the spring under compression including the portion of said lever carrying said applicator means and a reaction member having a pivotal connection with said pole longitudinally spaced along said pole from said axis.
References Cited (Backward Citations)
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Cited
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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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |