Patent US5137685A successfully refreshed from Google Patents.
Patent US3620565A successfully refreshed from Google Patents.
US3620565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft passenger transfer vehicle
Assignee: Boothe Airside Services Inc
•
Filing: 1969-10-16
•
Granted: 1971-11-16
•
Expires: 1989-10-16
Abstract
Abstract A vehicle to transfer passengers between a terminal building and parked aircraft. The vehicle includes a chassis having a main central beam and two upright guide posts at each end. A pod for containing the passengers is mounted for movement on the masts. Lift drive apparatus in the form of screw means suspended from the guide posts and connected to a power source may be driven to raise and lower the pod. Spring means housed in pockets on the chassis at the base of the masts provide suspension for the pod when the same is lowered and the vehicle is driven across the ground surface.
Inventors
- 👤 Walter S Eggert Jr
- 👤 James M Herring Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:18
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/30; B64F1/31
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
194 words
An aircraft passenger transfer vehicle of the type adapted to receive and discharge passengers at a plurality of levels, said vehicle having a self-propelled chassis for traversing the ground surface, said chassis including a pair of spaced apart fixed upright guide posts, a passenger pod mounted on said guide posts for vertical movement on said posts, lifting means operably connected between said chassis and said pod for raising and lowering said pod to predetermined elevations, said lifting means including threaded rod means, means securing said threaded rod means to said guide posts, first resilient means interposed between said guide posts and said securing means to enable angular movement of said threaded rod means relative to said lifting posts due to swinging movement of said pod relative to said lifting posts, said lifting means further including nut means axially movable along said threaded rod means for selective engagement and disengagement with said pod, additional resilient means associated with said nut means and interposed between said nut means and said pod means to provide compliance during said selective engagement and disengagement and to accommodate for angular variations of said pod relative to said threaded rod means.
Claim 2
Dependent Claim
194 words
An aircraft passenger transfer vehicle of the type adapted to receive and discharge passengers at a plurality of levels, said vehicle having a self-propelled chassis for traversing the ground surface, said chassis including a pair of spaced apart fixed upright guide posts, a passenger pod mounted on said guide posts for vertical movement on said posts, lifting means operably connected between said chassis and said pod for raising and lowering said pod to predetermined elevations, said lifting means including threaded rod means, means securing said threaded rod means to said guide posts, first resilient means interposed between said guide posts and said securing means to enable angular movement of said threaded rod means relative to said lifting posts due to swinging movement of said pod relative to said lifting posts, said lifting means further including nut means axially movable along said threaded rod means for selective engagement and disengagement with said pod, additional resilient means associated with said nut means and interposed between said nut means and said pod means to provide compliance during said selective engagement and disengagement and to accommodate for angular variations of said pod relative to said threaded rod means.
Claim 3
Dependent Claim
38 words
In the aircraft passenger transfer vehicle as set forth in claim 1, wherein said pod means include plate means having a low coefficient of friction secured thereto to facilitate sliding engagement of said nut means with said pod.
Claim 4
Dependent Claim
67 words
In the aircraft passenger transfer vehicle as set forth in claim 1 and including liNk means secured to said pod and to said nut means, said link means enabling axial movement of said nut means along the axis of said threaded rod means for said selective engagement and disengagement of said nut means with said pod but preventing rotation of said nut means relative to said pod.
Claim 5
Dependent Claim
51 words
In the aircraft passenger transfer vehicle as set forth in claim 3 wherein said link means include first and second link elements pivoted to one another, said first link element being secured to said pod and said second to said nut pivot means connected to the first and second link means.
Claim 6
Dependent Claim
62 words
In the aircraft passenger transfer vehicle as set forth in claim 4 wherein said first link element means constitutes a pair of link elements disposed on opposite sides of said nut means, and wherein said second link element means constitute tongue means pivoted at one of its ends to said pair of link elements and at its other end to said pod.
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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |