US3824796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile dock structure
Assignee: SPAN-DOCK Inc A CORP OF MN
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Filing: 1972-11-03
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Granted: 1974-07-23
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Expires: 1992-11-03
Abstract
Abstract A pair of longitudinally extended bar joists connected together in a generally parallel relationship have a wheel-equipped frame mounted spaced from one end thereof for adjustment of the wheels toward and away from the bar joists. A plurality of deck members are secured to the bar joists by nut-equipped bolts which pass through the deck members and selected ones of a plurality of longitudinally extended slots formed in each of the bar joists at spaced intervals longitudinally of the bar joists.
Inventors
- 👤 C Nasby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:24
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04; E02B3/06; E02B3/068
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
164 words
A mobile dock structure comprising: a. a pair of longitudinally extended bar joists having upper and lower chord elements and angularly disposed connecting elements; b. brace means rigidly connecting said bar joists in a generally parallel relationship with the upper chord elements in a common horizontal plane; c. base-equipped frame means having laterally spaced vertical support members; d. means carried by one end of each of said bar joists mounting said vertical support members for adjustments of the bases thereof toward and away from said bar joists; and e. deck means, and securing means mounting said deck means to said upper chord elements in said common plane; f. said upper chord element of each bar joist being formed by a pair of longitudinally extended laterally spaced rail members with portions of said angularly disposed connecting elements positioned between each pair, said portions of said angularly disposed connecting elements cooperating with said pair of rail members to define longitudinally extended slots receiving said securing means.
Claim 2
Dependent Claim
164 words
A mobile dock structure comprising: a. a pair of longitudinally extended bar joists having upper and lower chord elements and angularly disposed connecting elements; b. brace means rigidly connecting said bar joists in a generally parallel relationship with the upper chord elements in a common horizontal plane; c. base-equipped frame means having laterally spaced vertical support members; d. means carried by one end of each of said bar joists mounting said vertical support members for adjustments of the bases thereof toward and away from said bar joists; and e. deck means, and securing means mounting said deck means to said upper chord elements in said common plane; f. said upper chord element of each bar joist being formed by a pair of longitudinally extended laterally spaced rail members with portions of said angularly disposed connecting elements positioned between each pair, said portions of said angularly disposed connecting elements cooperating with said pair of rail members to define longitudinally extended slots receiving said securing means.
Claim 3
Dependent Claim
60 words
The structure of claim 1 in which said deck means is formed from a plurality of deck members extending laterally outwardly of said bar joists and in which said securing means are nut-equipped bolts extending through said deck members and selected ones of said slots of each bar joist whereby each deck member is adjustable longitudinally of said bar joist.
Claim 4
Dependent Claim
61 words
The structure of claim 2 in which each of said plurality of deck members include a plurality of slats extending transversely and spaced longitudinal of said bar joists and a pair of generally parallel stringers secured to and joining said slats, said stringers each engaging one of said upper chords in said common plane, said nut-equipped bolts extending through said stringers.
Claim 5
Dependent Claim
35 words
The structure of claim 2 and a plurality of support plates, one attached to each end of each bar joist, each plate lying in a plane generally parallel to and spaced from said common plane.
Claim 6
Dependent Claim
66 words
The structure of claim 4 in which said mobile dock includes a pair of dock sections hingedly connected together in an end-to-end relationship, and in which said support plates of adjacent ends of said dock sections provide planar surfaces for mounting the hinge connection of said dock sections for pivotal movements on an axis extending transversely of said dock structure parallel to said common plane thereof.
Claim 7
Dependent Claim
62 words
The structure of claim 1 in which said lower chord element of each bar joist is formed by a pair of longitudinally extended laterally spaced lengths of round bar stock, with portions of said angularly disposed connecting elements positioned between and affixed to said lengths, and said pair of rail members comprises a pair of longitudinally extended pieces of right angle stock.
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) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |