Patent US3901532A successfully refreshed from Google Patents.
US3901532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Outrigger float mounting
Assignee: NORTHWEST ENGINEERING Co A CORP OF
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Filing: 1974-05-16
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Granted: 1975-08-26
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Expires: 1994-05-16
Abstract
Abstract An extensible outrigger arrangement of the type where the float is pivotally mounted on the rod of the vertical cylinder and cammed to a vertical storage position upon retraction is provided with cam plates pivotal coaxially with the float. A pair of torsion springs between the cam plates and float maintain the parts in normal relative positions, but allow the float to pivot should an obstruction be encountered when the outrigger beam is extended while the float is in its vertical position.
Inventors
- 👤 John T Hornagold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:46
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/62; B66C23/72; B66C23/78; B66C23/80
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
198 words
In an extensible outrigger assembly comprising an extensible horizontal beam, a vertical cylinder mounted on the outer end of the beam that has a downwardly extensible and upwardly retractable rod, a float pivotally mounted on the outer end of the rod to be movable between a horizontal working position and a vertical stored position alongside the vertical cylinder, a camming member mounted on the outrigger assembly near the vertical cylinder rod, and a cam follower mounted on the float that engages the camming member upon retraction of the rod to cause the float to pivot from working to stored position the improvement wherein: the cam follower is relatively movably mounted on the float; and there is a resilient connection between the float and cam follower which normally holds the float and cam follower in normal relative positions but which can be overridden to allow the float to pivot from its stored position toward its working position so that it can ride over an obstacle encountered when the beam is extended with the float in stored position, the resilient connection serving to return the float and cam follower to their normal relative positions after the obstacle has been passed.
Claim 2
Dependent Claim
198 words
In an extensible outrigger assembly comprising an extensible horizontal beam, a vertical cylinder mounted on the outer end of the beam that has a downwardly extensible and upwardly retractable rod, a float pivotally mounted on the outer end of the rod to be movable between a horizontal working position and a vertical stored position alongside the vertical cylinder, a camming member mounted on the outrigger assembly near the vertical cylinder rod, and a cam follower mounted on the float that engages the camming member upon retraction of the rod to cause the float to pivot from working to stored position the improvement wherein: the cam follower is relatively movably mounted on the float; and there is a resilient connection between the float and cam follower which normally holds the float and cam follower in normal relative positions but which can be overridden to allow the float to pivot from its stored position toward its working position so that it can ride over an obstacle encountered when the beam is extended with the float in stored position, the resilient connection serving to return the float and cam follower to their normal relative positions after the obstacle has been passed.
Claim 3
Dependent Claim
101 words
An outrigger assembly according to claim 1, wherein: there is a mounting pin extending through the outer end of the rod horizontally transverse to the line of movement of the beam during extension thereof; and the float includes an upwardly extending mounting bracket that is mounted on the pin; and the cam follower comprises a cam plate that is mounted on the pin and that has a contoured edge that is engageable with the camming member, the float and cam plate being pivotable with respect to the rod and with respect to each other about an axis defined by the pin.
Claim 4
Dependent Claim
53 words
An outrigger assembly according to claim 2, wherein: the resilient connection comprises a torsion spring that is wound around the pin with its ends operatively engaged, respectively, with the float and cam plate, the torsion spring normally serving to pivot the float and cam follower in opposite directions toward their normal relative positions.
Claim 5
Dependent Claim
41 words
An outrigger assembly according to claim 3 wherein: one end of the spring is engaged against an upstanding stop on the float, the cam plate being engageable with the stop to limit the opposite pivotal movement provided by the torsion spring.
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) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |