Patent US3251222A successfully refreshed from Google Patents.
US5188342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable safety rail system
Assignee: SINCO Acquisition Corp
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Filing: 1992-01-15
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Granted: 1993-02-23
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Expires: 2012-01-15
Abstract
Abstract A safety rail system of roof edge protection employing support base units which include shoes for an upright post and a cantilever counterweight connector. The base units also include a toeboard saddle. The system components incorporate a number of releasably threaded lock pins and inspection ports to facilitate assembly.
Inventors
- 👤 Kevin D. Ouellette
- 👤 John Rexroad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:33
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/32; E04G21/3204; E04G21/3223; E04G21/3233; E01; E01F; E01F13/00; E01F13/02; E04G21/3238
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
147 words
A base support for a safety rail system for roof edge protection or the like comprising: base plate means; first shoe means mounted to said base plate means, said first shoe means defining a first receiving socket having a central axis generally parallel to said plate means; first locking means for compressively locking a member received in said first socket with said first shoe means; second shoe means mounted to said base plate means and oriented in a generally upright disposition at an oblique angle relative to said first shoe means axis, said second shoe means defining a second receiving socket; second locking means for compressively locking a member received in said second socket with said second shoe means; saddle means comprising a pair of generally parallel transversely spaced plates for receiving a toeboard; and third locking means for compressively locking a toeboard to said saddle means.
Claim 2
Dependent Claim
147 words
A base support for a safety rail system for roof edge protection or the like comprising: base plate means; first shoe means mounted to said base plate means, said first shoe means defining a first receiving socket having a central axis generally parallel to said plate means; first locking means for compressively locking a member received in said first socket with said first shoe means; second shoe means mounted to said base plate means and oriented in a generally upright disposition at an oblique angle relative to said first shoe means axis, said second shoe means defining a second receiving socket; second locking means for compressively locking a member received in said second socket with said second shoe means; saddle means comprising a pair of generally parallel transversely spaced plates for receiving a toeboard; and third locking means for compressively locking a toeboard to said saddle means.
Claim 3
Dependent Claim
31 words
The base support of claim 1 wherein at least one said locking means comprises a threadably mounted lock pin and an integral handle for applying a torque to said lock pin.
Claim 4
Dependent Claim
22 words
The base support of claim 1 wherein said first shoe means further defines at least one inspection port in said first socket.
Claim 5
Dependent Claim
19 words
The base support of claim 1 wherein one of said saddle means plates connects to said first shoe means.
Claim 6
Dependent Claim
33 words
The base support of claim 1 wherein said base plate means comprises a plate having a bottom surface and a top surface and further comprising a rubber sheet affixed to said bottom surface.
Claim 7
Dependent Claim
19 words
The base support of claim 5 wherein said rubber sheet extends to cover a portion of said top surface.
Claim 8
Dependent Claim
24 words
The base support of claim 6 further comprising an angled clamp plate engaging said rubber sheet for securing said sheet against said to surface.
Claim 9
Dependent Claim
44 words
The base support of claim 1 further comprising parapet means mounted to said base plate means, said parapet means comprising a member having a generally perpendicular flange-like portion which is projectable from said plate means in a direction generally opposite said first socket means.
Claim 10
Dependent Claim
20 words
The base support of claim 1 wherein said saddle means laterally extends at opposing positions of said first shoe means.
Claim 11
Dependent Claim
37 words
The base support of claim 1 and further comprising a toeboard received in said saddle means, an upright post received in said first socket, and a connector received in said second socket and extending generally transversely therefrom.
Claim 12
Dependent Claim
100 words
A rail frame for a safety rail system for roof edge protection or the like comprising: a pair of generally parallel support posts; a pair of generally parallel rails connecting said posts and extending generally orthogonally thereto, said rails each forming a pair of opposed receiving sockets, each said rail further defining at least one inspection port opening into each said socket; locking means comprising a pin threaded to said rail proximate each end thereof, each said pin being variably projectable into a corresponding socket; and an open-ended tube mounted to one of said rails in generally parallel relation thereto.
Claim 13
Dependent Claim
100 words
A rail frame for a safety rail system for roof edge protection or the like comprising: a pair of generally parallel support posts; a pair of generally parallel rails connecting said posts and extending generally orthogonally thereto, said rails each forming a pair of opposed receiving sockets, each said rail further defining at least one inspection port opening into each said socket; locking means comprising a pin threaded to said rail proximate each end thereof, each said pin being variably projectable into a corresponding socket; and an open-ended tube mounted to one of said rails in generally parallel relation thereto.
Claim 14
Dependent Claim
27 words
The rail frame of claim 11 wherein said locking means further comprises a nut welded to a said rail and said pin is threaded to said nut.
Claim 15
Dependent Claim
19 words
The rail frame of claim 12 further comprising a handle integrally extending from said pin at an angle thereto.
Claim 16
Dependent Claim
18 words
The rail frame of claim 11 wherein said tube is generally symmetrically located relative to said support posts.
Claim 17
Dependent Claim
51 words
The rail frame of claim 11 further comprising a T-shaped tubular coupler comprising a leg portion received in a socket and locked thereto by said locking means, said coupler comprising a tubular section extending generally orthogonally to the said rail, and locking means mounted to said section and variably projectable therein.
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) | 1996-02-23 | 1996-08-24 | 1997-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-02-23 | 2000-08-24 | 2001-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-02-23 | 2004-08-24 | 2005-02-23 | $7700.00 | Window Closed / Lapsed |