US4173196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety release for water skiing tow line
Assignee: Ajax Machine and Welding Co
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Filing: 1977-10-11
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Granted: 1979-11-06
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Expires: 1997-10-11
Abstract
Abstract A safety release for water skiing tow lines comprising a U-shaped body having a rearwardly facing slot therein, a mounting bracket for securing the device to a ski pylon, a release arm pivotally secured to the body and including a bolt which extends across the slot when the arm is in a vertical position so as to engage the terminal loop of the ski rope. When the arm is pulled forwardly by means of a trip line operated from within the boat, the bolt is retracted out of the slot thereby releasing the tow line. Adjustable spring biased detents are provided for locking the release handle in the open and closed positions.
Inventors
- 👤 Edward F. Casad
- 👤 Thomas R. Casad
- 👤 Richard E. Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:16
CPC Classifications
B; B63; B63B; B63B34/00; B63B34/60; B63B34/67; F; F16; F16B; F16B45/00; F16B45/02; F16B45/021; F16B45/024; F16B45/026; Y; Y10; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45602; Y10T24/45623; Y10T24/45675; Y10T24/45686
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
221 words
A safety release for water skiing tow ropes comprising: a body having spaced sides, each side having first and second opposite end portions, said first end portions being rigidly secured together, a lever disposed in substantial parallelism with and between said sides, said lever having an arm extending from between said sides and in a direction transversely of a longitudinal axis on said body which extends between said end portions, said second end portions of said sides having laterally registered slots opening therethrough defining a single slot which is substantially coplanar with said longitudinal axis, said lever being pivotally connected to said sides at a location substantially on said longitudinal axis so as to be swingable in substantial parallelism with said sides between first and second positions, bolt means disposed between in substantial parallelism with said sides and movable between a first position spanning and a second position clearing said slots, said bolt means in its first position extending transversely of said longitudinal axis, said lever having a connection with said bolt means to move the latter from its first to its second positions when said lever is moved from its first to its second positions, respectively, a rope-receiving clearance provided between said bolt means and the inner ends of said slots when said bolt means is in its first position.
Claim 2
Dependent Claim
221 words
A safety release for water skiing tow ropes comprising: a body having spaced sides, each side having first and second opposite end portions, said first end portions being rigidly secured together, a lever disposed in substantial parallelism with and between said sides, said lever having an arm extending from between said sides and in a direction transversely of a longitudinal axis on said body which extends between said end portions, said second end portions of said sides having laterally registered slots opening therethrough defining a single slot which is substantially coplanar with said longitudinal axis, said lever being pivotally connected to said sides at a location substantially on said longitudinal axis so as to be swingable in substantial parallelism with said sides between first and second positions, bolt means disposed between in substantial parallelism with said sides and movable between a first position spanning and a second position clearing said slots, said bolt means in its first position extending transversely of said longitudinal axis, said lever having a connection with said bolt means to move the latter from its first to its second positions when said lever is moved from its first to its second positions, respectively, a rope-receiving clearance provided between said bolt means and the inner ends of said slots when said bolt means is in its first position.
Claim 3
Dependent Claim
25 words
The safety release of claim 1 wherein said bolt means extends substantially parallel to said lever arm when both are in the first positions thereof.
Claim 4
Dependent Claim
46 words
The safety release of claim 2 wherein said bolt means is an elongated rigid element rigidly secured at one end to said lever to dispose the portion of said element when in its first position and which spans said slot substantially perpendicular to said longitudinal axis.
Claim 5
Dependent Claim
32 words
The safety release of claim 2 including a bracket member rigidly securing said first end portions together, and detent means for releasably holding said lever alternatively in its first and second positions.
Claim 6
Dependent Claim
26 words
The safety release of claim 1 wherein said lever arm has an end portion offset laterally from said bracket member for connecting a release rope thereto.
Claim 7
Dependent Claim
75 words
The safety release of claim 4 wherein said detent means comprises a hollow member having a ball captured therein and extending beyond one end thereof, spring means contained within said hollow member for biasing said ball towards said one end, said hollow member being threadedly secured to said body and positioned such that said ball is in contact with said arm and is captured by said indentation when said element is positioned within said slots.
Claim 8
Dependent Claim
33 words
The safety release of claim 6 including a second indentation positioned to capture said ball when said arm is rotated to a second position wherein said bolt is positioned out of said slot.
Claim 9
Dependent Claim
33 words
The safety release of claim 4 wherein said lever is provided with spaced abutment portions alternatively engageable with said bracket member to stop said lever in its selected first and second positions, respectively.
Claim 10
Dependent Claim
46 words
The safety release of claim 8 wherein said bolt means is an elongated rigid element rigidly secured at one end to said lever to dispose the portion of said element when in its first position and which spans said slot substantially perpendicular to said longitudinal axis.
Claim 11
Dependent Claim
63 words
The safety release of claim 9 wherein said second end portions of said body are rigidly joined together with said single slot opening therethrough, said bracket member having a mounting portion which extends substantially parallel to said lever arm when said lever is in its first position, and means on the distal end of said lever arm for connecting a release rope thereto.
Claim 12
Dependent Claim
24 words
The combination of claim 10 wherein said bracket member is mounted to a ski pylon and said arm is offset to clear said pylon.
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) | 1982-11-05 | 1983-05-07 | 1983-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-05 | 1987-05-07 | 1987-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-05 | 1991-05-07 | 1991-11-06 | $7700.00 | Window Closed / Lapsed |