US3843159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fifth wheel slider support
Assignee: Amsted Industries Inc
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Filing: 1973-10-19
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Granted: 1974-10-22
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Expires: 1993-10-19
Abstract
Abstract A fifth wheel slider support for mounting a fifth wheel on the frame of a semi-trailer. The slider support includes guide bars slidably supporting carrier blocks on which the fifth wheel is mounted. Lock washers disposed about the guide rods are resiliently urged to a locked position and retain the carrier blocks in a selective lengthwise position on the support. Pneumatic-mechanical latch means releases the lock-washers to permit lengthwise positioning of the carrier blocks.
Inventors
- 👤 C Hood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:35
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/08; B62D53/0807
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
164 words
A slider support for mounting a load carrying member on the frame of a highway vehicle, said support comprising a base adapted to be attached to said frame, laterally spaced and longitudinally extending guide rods mounted on said base, carrier blocks having means to support an associated fifth wheel, said blocks mounted for lengthwise movement on respective guide rods, a plurality of lock washers slidable on each of said guide rods and engageable with one of said carrier blocks, said lock washers being tiltable on said guide rods between a locked position resisting lengthwise movement on said guiding rods and an unlocked position permitting sliding movement on said guiding rods, and resilient means disposed between said lock washers to divide said lock washers into groups and operative to urge said groups of lock washers to said locked position to resist buff and draft forces imposed on said member whereby said carrier blocks in engagement therewith are locked against lengthwise movement of said guide rods.
Claim 2
Dependent Claim
164 words
A slider support for mounting a load carrying member on the frame of a highway vehicle, said support comprising a base adapted to be attached to said frame, laterally spaced and longitudinally extending guide rods mounted on said base, carrier blocks having means to support an associated fifth wheel, said blocks mounted for lengthwise movement on respective guide rods, a plurality of lock washers slidable on each of said guide rods and engageable with one of said carrier blocks, said lock washers being tiltable on said guide rods between a locked position resisting lengthwise movement on said guiding rods and an unlocked position permitting sliding movement on said guiding rods, and resilient means disposed between said lock washers to divide said lock washers into groups and operative to urge said groups of lock washers to said locked position to resist buff and draft forces imposed on said member whereby said carrier blocks in engagement therewith are locked against lengthwise movement of said guide rods.
Claim 3
Dependent Claim
52 words
The invention as defined in claim 1 wherein latch means for applying opposing force means are mounted on said rod for opposing and overcoming said urging force of said resilient means to move said lock washers to said unlocked position whereby said carrier blocks are movable lengthwise of said guide rod means.
Claim 4
Dependent Claim
19 words
The invention as defined in claim 2 wherein said latch means includes pneumatic operated piston means and lever means.
Claim 5
Dependent Claim
47 words
The invention as defined in claim 1 wherein restraint means are mounted on said base parallel to said guide rods and engageable with said carrier blocks for restraining said carrier blocks against turning about said guide rod means and transmitting vertical and lateral loads to said base.
Claim 6
Dependent Claim
27 words
The invention as defined in claim 1 wherein each of said carrier blocks is provided with a cavity and said lock washers are disposed in said cavity.
Claim 7
Dependent Claim
36 words
The invention as defined in claim 5 wherein said carrier blocks each includes a pair of longitudinally spaced legs, said legs defining said cavity and said legs are provided with openings slidably accommodating said guide rod.
Claim 8
Dependent Claim
67 words
The invention as defined in claim 6 wherein said resilient means comprises a substantially U-shaped spring defined by a bight and a pair of legs, slot means in said legs for accommodating said guide rods whereby said spring is slidable along the length of said lock with said carrier block, and longitudinally extending projections on said legs engaging and urging said lock washers to said lock position.
Claim 9
Dependent Claim
85 words
The invention as defined in claim 7 wherein said lever means comprises a pair of levers slidably mounted on said guide rod to engage the opposite end ones of said plurality of lock washers, and said pneumatic means is connected to said outer ends of said levers so that upon relative constraction of said piston and cylinder said levers are operative to overcome said resilient means and said groups of lock washers on opposite sides of said resilient means are moved to said unlocked position.
Claim 10
Dependent Claim
103 words
In a slider support for a load carrying member on the frame of a highway vehicle; the combination of a guide rod adapted to extend longitudinally of said vehicle at each side thereof, a carrier block having means mounted for slidable lengthwise movement along said rod, said member being mounted on said block, two groups of lock washers on said rod and carried by said block for movement therewith, and means for tilting the washers of respective groups in opposite directions to interlock with said rod and for moving said washers to parallel position to permit said block to slide along said roD.
Claim 11
Dependent Claim
103 words
In a slider support for a load carrying member on the frame of a highway vehicle; the combination of a guide rod adapted to extend longitudinally of said vehicle at each side thereof, a carrier block having means mounted for slidable lengthwise movement along said rod, said member being mounted on said block, two groups of lock washers on said rod and carried by said block for movement therewith, and means for tilting the washers of respective groups in opposite directions to interlock with said rod and for moving said washers to parallel position to permit said block to slide along said roD.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |