US4666131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable guard rail stanchion member
Assignee: Individual
•
Filing: 1986-04-24
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Granted: 1987-05-19
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Expires: 2006-04-24
Abstract
Abstract An adjustable guard rail stanchion member for use on pitched or flat roofs with clamping means to engage a rafter of a roof or elevated floor. Adjustable means are provided to assure a vertical position of a portion of the stanchion member yet allowing another portion to be angled to the pitch of the rafter. In addition the stanchion member is spaced outwardly of the roof or floor so as to not interfere with roofing operations.
Inventors
- 👤 Ronald C. Kettelkamp, Sr.
- 👤 Maurice Shaffstall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:06
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/32; E04G21/3204; E04G21/3214; E04G5/00; E04G5/04; E04G5/041; Y; Y10; Y10S; Y10S256/00; Y10S256/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
152 words
An adjustable safety guard rail stanchion member for a building floor or roof which structure has a plurality of floor or roof rafters, and which member when used with additional stanchion members form supports for receiving safety guard rails extending therebetween, said stanchion member comprising: a safety guard rail upright post member having an upper and lower end and a longitudinal axis; a fixed spacer strut extending from said post member adjacent said lower end of said post member and preferably normal to the longitudinal axis of said post member; adjustable clamping means connected to said fixed spacer strut and including a unitary pivotable rafter engaging and receiving portion, adjustment means on said clamping means to lockably set unitary pivotable rafter engaging and receiving portion relative to the angle of said rafter; and at least one guard rail receiving member axially adjustably mounted on said upright post member and releasable lockable thereon.
Claim 2
Dependent Claim
152 words
An adjustable safety guard rail stanchion member for a building floor or roof which structure has a plurality of floor or roof rafters, and which member when used with additional stanchion members form supports for receiving safety guard rails extending therebetween, said stanchion member comprising: a safety guard rail upright post member having an upper and lower end and a longitudinal axis; a fixed spacer strut extending from said post member adjacent said lower end of said post member and preferably normal to the longitudinal axis of said post member; adjustable clamping means connected to said fixed spacer strut and including a unitary pivotable rafter engaging and receiving portion, adjustment means on said clamping means to lockably set unitary pivotable rafter engaging and receiving portion relative to the angle of said rafter; and at least one guard rail receiving member axially adjustably mounted on said upright post member and releasable lockable thereon.
Claim 3
Dependent Claim
51 words
An adjustable safety guard rail stanchion member as defined in claim 1 wherein said fixed spacer strut is of a length to assure a space between said upright post member and the edge of said rafter so that there is no interference with said rafter to complete roofing of said building.
Claim 4
Dependent Claim
65 words
An adjustable safety guard rail stanchion member as defined in claim 1 wherein the unitary pivotable rafter engaging and receiving portion of said clamping means adapted to releasably engage a rafter included: a U shaped channel member to encompass the bottom and sides of said rafter; and at least one clamp engaging one of said rafter sides to bias said rafter against the opposite side.
Claim 5
Dependent Claim
17 words
An adjustable safety guard rail stanchion member as defined in claim 3 where there are two clamps.
Claim 6
Dependent Claim
96 words
An adjustable safety guard rail stanchion member as defined in claim 1 wherein said adjustable clamping means includes: a support arm rising from said fixed spacer strut; a pivot plate including a rafter engaging and receiving channel pivotally secured to said support arm; a plurality of pin setting openings in said support arm and a bore through said pivot plate and a locking pin insertable through one of said pin setting openings and said bore to lock said pivot plate at a complimentary angle with said rafter and said upright post member will remain generally vertical.
Claim 7
Dependent Claim
21 words
An adjustable safety guard rail stanchion member as defined in claim 1 wherein said upright post member is square bar stock.
Claim 8
Dependent Claim
55 words
An adjustable safety guard rail stanchion member as defined in claim 1 wherein said guard rail receiving member includes: a collar slidable mounted on said upright post member; a set screw to lock said collar on said post; and a guard rail receiving bracket mounted on said collar on the side opposite said set screw.
Claim 9
Dependent Claim
46 words
A plurality of adjustable safety guard rail stanchion members each of which is as defined in claim 1 wherein: each member is mounted on a separate rafter and each are spaced from one another wherein a guard rail extends between at least two of said stanchions.
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) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |