US3946992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction fence post
Assignee: Dell Holdings Ltd
•
Filing: 1975-02-28
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Granted: 1976-03-30
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Expires: 1995-02-28
Abstract
Abstract A construction fence post including a hollow tubular post having a C-shaped mounting bracket at the lower end thereof, a shank extending through the hollow tubular post and projecting outwardly thereof towards an oppositely disposed arm of the C-shaped clamp and drive means at the upper end of the post for driving the shank towards and away from said arm of the C-shaped clamp to releasably clamp a structure disposed therebetween. The shank is resiliently longitudinally compressible whereby the clamping force is maintained between the shank and the arm when the proportions of the structure which is disposed therebetween vary due to temperature variations or the like.
Inventors
- 👤 Murray A. Elias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 15:26
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/32; E04G21/3204; E04G21/3223; E04G21/3233; E04G21/3242; E04G5/00; E04G5/14; E04G2005/148
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
170 words
An end mounted construction fence post comprising a. a hollow tubular post having an upper end and a lower end and a longitudinal axis extending therebetween, b. a C-shaped bracket mounted at the lower end of said post and opening laterally of said axis of said post, said C-shaped bracket having an arm spaced downwardly from and underlying the lower end of said post, c. A shank extending into said hollow tubular post and having a lower end projecting outwardly from the lower end of said tubular post towards said arm, d. drive means at the upper end of said post for driving said shank towards and away from said arm of said C-shaped bracket whereby said shank may cooperate with said arm to releasably clamp said post to a structure disposed therebetween, e. said shank being resiliently longitudinally compressible whereby a clamping force is maintained between said shank and said arm when the proportions of said structure which is disposed therebetween vary due to temperature variations or the like.
Claim 2
Dependent Claim
170 words
An end mounted construction fence post comprising a. a hollow tubular post having an upper end and a lower end and a longitudinal axis extending therebetween, b. a C-shaped bracket mounted at the lower end of said post and opening laterally of said axis of said post, said C-shaped bracket having an arm spaced downwardly from and underlying the lower end of said post, c. A shank extending into said hollow tubular post and having a lower end projecting outwardly from the lower end of said tubular post towards said arm, d. drive means at the upper end of said post for driving said shank towards and away from said arm of said C-shaped bracket whereby said shank may cooperate with said arm to releasably clamp said post to a structure disposed therebetween, e. said shank being resiliently longitudinally compressible whereby a clamping force is maintained between said shank and said arm when the proportions of said structure which is disposed therebetween vary due to temperature variations or the like.
Claim 3
Dependent Claim
73 words
An end mounted construction fence post as claimed in claim 1 wherein said shank comprises a hollow tubular portion having an upper end and a lower end, a threaded nut mounted at the upper end of said hollow tubular portion, a compression spring extending downwardly from said lower end of said hollow tubular portion, a leg member extending downwardly from said compression spring, said compression spring providing said longitudinal compressibility of said shank.
Claim 4
Dependent Claim
76 words
An end mounted construction fence post as claimed in claim 2 wherein said drive means includes a threaded stem mounted at the upper end of said post for rotation about said longitudinal axis and extending longitudinally downwardly into said post and threadedly engaging said threaded nut to drive said shank longitudinally of said tubular post, and means at the upper end of said threaded stem engageable from without said post to permit rotation of said stem.
Claim 5
Dependent Claim
41 words
An end mounted construction fence post as claimed in claim 3 wherein said post has a passage opening through said lower end thereof adapted to slidably receive said shank and to prevent rotation of said shank with respect to said post.
Claim 6
Dependent Claim
46 words
An end mounted construction fence post as claimed in claim 4 wherein said leg member of said shank has a laterally extending foot portion at the lower end thereof projecting inwardly of said C-shaped bracket in a spaced parallel relationship with respect to said underlying arm.
Claim 7
Dependent Claim
41 words
An end mounted construction fence post as claimed in claim 1 including construction fence support means carried by said drive means and cooperating with said construction fence to permit operation of said drive means when a construction fence is supported thereby.
Claim 8
Dependent Claim
44 words
An end mounted construction fence post as claimed in claim 1 wherein said C-shaped bracket is adjustable to adjust the distance between the lower end of said hollow tubular post and said arm of said bracket which underlies said lower end of said post.
Claim 9
Dependent Claim
52 words
An end mounted construction fence post as claimed in claim 1 wherein said drive means includes at least one support arm projecting radially at the upper end of the post and having a vertically extending portion at the outer end thereof, said arm providing a hook for supporting a fence post therefrom.
Claim 10
Dependent Claim
38 words
An end mounted construction fence as claimed in claim 1 including an extension projecting upwardly from the upper end of said hollow tubular post in a spaced relationship with respect to said vertically extending portion of said arm.
References Cited (Backward Citations)
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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) | 1979-03-30 | 1979-09-29 | 1980-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-30 | 1983-09-29 | 1984-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-30 | 1987-09-29 | 1988-03-30 | $7700.00 | Window Closed / Lapsed |