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US4850769A Expired / Lapsed US ⏱️ 0.0 years remaining

Tie-down device

Assignee: Individual
•
Filing: 1987-06-08
•
Granted: 1989-07-25
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Expires: 2007-06-08
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Abstract

Abstract A tie-down device is disclosed herein having a movable car slidably carried on a stationary track which includes a spring biased vertically movable latch on the car operable to be insertably received into a selected one of a plurality of openings on said track for releasably retaining the car in a critical location on the track. The car further includes an attachment arrangement such as a tongue-in-groove construction for mounting on the track and a securement loop universally carried on a car flange for attachment to a tie-down line or cord.

Inventors

  • 👤 James R. Matthews

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 20:32
CPC Classifications
B; B60; B60P; B60P7/00; B60P7/06; B60P7/08; B60P7/0807; B60P7/0815

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 242 words
A tie-down device comprising: an elongated track having an exposed slot provided with spaced apart openings along the length of said track; a car slidably carried on said track having a movable plunger biased into sliding contact with said track insertably receivable within selected ones of said track openings; said car having central body movably carrying said plunger and adapted to slidably move through said track slot; and a tongue-in-groove slidable connection between said track and said car central body retaining said car onto said track, wherein said slidable connection includes a guide member disposed in a guide groove adjacent said slot, said guide member being shaped and configured larger than said spaced openings and larger than said slot to prevent removal of said guide member through said spaced openings and said slot, whereby said car is affixed against removal from said track along said spaced apart openings; an attachment loop carried on said car central body in spaced relationship to said plunger, wherein said car central body includes an opening for housing an expansion spring bearing against said plunger for forcibly urging said plunger into engagement with said track; a cross bar carried on said plunger extending through said opening engagable by said spring; and a flange at the end of said car central body having a shoulder supporting said loop at a predetermined angle for ready attachment, said shoulder positioned above a hole in said car for receiving said loop.
Claim 2
Dependent Claim 242 words
A tie-down device comprising: an elongated track having an exposed slot provided with spaced apart openings along the length of said track; a car slidably carried on said track having a movable plunger biased into sliding contact with said track insertably receivable within selected ones of said track openings; said car having central body movably carrying said plunger and adapted to slidably move through said track slot; and a tongue-in-groove slidable connection between said track and said car central body retaining said car onto said track, wherein said slidable connection includes a guide member disposed in a guide groove adjacent said slot, said guide member being shaped and configured larger than said spaced openings and larger than said slot to prevent removal of said guide member through said spaced openings and said slot, whereby said car is affixed against removal from said track along said spaced apart openings; an attachment loop carried on said car central body in spaced relationship to said plunger, wherein said car central body includes an opening for housing an expansion spring bearing against said plunger for forcibly urging said plunger into engagement with said track; a cross bar carried on said plunger extending through said opening engagable by said spring; and a flange at the end of said car central body having a shoulder supporting said loop at a predetermined angle for ready attachment, said shoulder positioned above a hole in said car for receiving said loop.
Claim 3
Dependent Claim 27 words
The invention as defined in claim 1 wherein: said attachment loop includes a depressable portion pivotally mounted to said loop and adapted to receive another loop therethrough.

References Cited (Backward Citations)

GB599471A Cited
GB787750A Cited
US3282229A Cited
US3357670A Cited
US3605637A Cited
US4293255A Cited
US4248558A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-07-24 1993-01-23 1993-07-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-07-24 1997-01-23 1997-07-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-07-24 2001-01-23 2001-07-25 $7700.00 Window Closed / Lapsed

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