Patent US4248558A successfully refreshed from Google Patents.
US4248558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tie down anchor
Assignee: Individual
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Filing: 1979-07-06
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Granted: 1981-02-03
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Expires: 1999-07-06
Abstract
Abstract A tie down anchor and fastening device includes an elongated continuous channel defining a continuous T-slot with a slider block slidably mounted within the channel and including a connecting member extending through the slot externally of the channel with gripping means carried by the slider block for engagement with the internal walls of the T channel upon tilting or pulling the slider block into engagement with the walls of the channel adjacent the slot.
Inventors
- 👤 Ed F. Lechner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:40
CPC Classifications
B; B60; B60P; B60P7/00; B60P7/06; B60P7/08; B60P7/0807; B60P7/0815
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
125 words
A tie down fastening device comprising: an elongated continuous channel defining a continuous T-slot defined by side walls defining an edge directed inward toward the interior of said channel, a slider block slidably mounted in and having sufficient clearance to normally slide within said T-slot, a fastening member secured to said block and extending through the slot externally of said channel for connecting to tie down straps, and gripping means carried by said slider block for gripping said channel member and anchoring said slider when elevated in selected positions along said channel wherein said edge of each of said side walls overlie a portion of the surface of said block, and said gripping means comprises serrations formed in said block for engagement with said edges.
Claim 2
Dependent Claim
125 words
A tie down fastening device comprising: an elongated continuous channel defining a continuous T-slot defined by side walls defining an edge directed inward toward the interior of said channel, a slider block slidably mounted in and having sufficient clearance to normally slide within said T-slot, a fastening member secured to said block and extending through the slot externally of said channel for connecting to tie down straps, and gripping means carried by said slider block for gripping said channel member and anchoring said slider when elevated in selected positions along said channel wherein said edge of each of said side walls overlie a portion of the surface of said block, and said gripping means comprises serrations formed in said block for engagement with said edges.
Claim 3
Dependent Claim
60 words
The fastening device of claim 1 wherein said fastening member defines a lever arm having a length exceeding the length of the block from each end thereof to the connection of the fastening member to the block so that lateral force on said member at least at the outermost end thereof tilts the block into gripping engagement with said edge.
Claim 4
Dependent Claim
21 words
The fastening device of claim 1 wherein said serrations are formed in grooves in the upper surface of said slider block.
Claim 5
Dependent Claim
107 words
A tie down fastening device comprising: an elongated continuous channel defining a continuous T-slot a slider block slidably mounted in and having sufficient clearance to normally slide within said T-slot, a fastening member secured to said block and extending through the slot externally of said channel for connecting to tie down straps, and gripping means comprising serrations on said slider block at each side of the slot and adapted to engage and grip the walls of the channel adjacent the slot upon tilting of said slider in said channel, and pulling of said slider toward said slot for anchoring said slider in selected positions along said channel.
Claim 6
Dependent Claim
107 words
A tie down fastening device comprising: an elongated continuous channel defining a continuous T-slot a slider block slidably mounted in and having sufficient clearance to normally slide within said T-slot, a fastening member secured to said block and extending through the slot externally of said channel for connecting to tie down straps, and gripping means comprising serrations on said slider block at each side of the slot and adapted to engage and grip the walls of the channel adjacent the slot upon tilting of said slider in said channel, and pulling of said slider toward said slot for anchoring said slider in selected positions along said channel.
Claim 7
Dependent Claim
24 words
The fastening device of claim 4 wherein said fastening member is a hook member having a length exceeding the length of the slider block.
Claim 8
Dependent Claim
15 words
The fastening device of claim 5 wherein said hook is oriented transverse to the channel.
Claim 9
Dependent Claim
110 words
A tie down fastening device comprising: an elongated continuous channel defining a continuous T-slot defined by side walls, each defining an edge directed inward toward the interior of said channel, a slider block slidably mounted in and having sufficient clearance to normally slide within said T-slot, a fastening member secured to said block and extending through the slot externally of said channel for connecting to tie down straps, and gripping means carried by said slider block for gripping said channel member and anchoring said slider when elevated in selected positions along said channel, said gripping means comprises serrations on the surface of said slider block adapted to engage said edges.
Claim 10
Dependent Claim
110 words
A tie down fastening device comprising: an elongated continuous channel defining a continuous T-slot defined by side walls, each defining an edge directed inward toward the interior of said channel, a slider block slidably mounted in and having sufficient clearance to normally slide within said T-slot, a fastening member secured to said block and extending through the slot externally of said channel for connecting to tie down straps, and gripping means carried by said slider block for gripping said channel member and anchoring said slider when elevated in selected positions along said channel, said gripping means comprises serrations on the surface of said slider block adapted to engage said edges.
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) | 1984-02-03 | 1984-08-04 | 1985-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-03 | 1988-08-04 | 1989-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-03 | 1992-08-04 | 1993-02-03 | $7700.00 | Window Closed / Lapsed |