Patent US3576235A successfully refreshed from Google Patents.
US3576235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake adjusting screw lock
Assignee: Bendix Corp
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Filing: 1969-07-03
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Granted: 1971-04-27
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Expires: 1989-07-03
Abstract
Abstract An adjusting device interposed between the adjacent ends of a pair of brake shoes so as to increase the distance therebetween to compensate for shoe wear, including a coil spring connecting the adjacent shoe ends to the adjusting device to prevent excessive separation of said shoe ends. The coil spring circumscribes the adjusting device, the convolutions of the spring being spaced from abutments on the adjuster.
Inventors
- 👤 Daniel L Bolenbaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:23
CPC Classifications
F; F16; F16D; F16D51/00; F16D51/16; F16D51/18; F16D51/20; F16D51/24; F16D51/46; F16D51/48; F16D65/00; F16D65/38; F16D65/40; F16D65/52; F16D65/56; F16D65/561; F16D65/565
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
104 words
In a brake having two brakeshoes and a brakeshoe adjusting device positioned between adjacent ends of said shoes for adjusting said shoes to compensate for shoe wear, said device comprising two elements threadedly interconnecting one another and provided with receiving means for locating the adjacent ends of said shoes, and spring means operatively connecting said adjacent ends to thereby retain said ends in said receiving means in adjustable relationship to said device, said spring means having abutments thereon to be engaged by portions of said device upon separation between said adjacent ends and said device of a predetermined amount whereby further separation is precluded.
Claim 2
Dependent Claim
104 words
In a brake having two brakeshoes and a brakeshoe adjusting device positioned between adjacent ends of said shoes for adjusting said shoes to compensate for shoe wear, said device comprising two elements threadedly interconnecting one another and provided with receiving means for locating the adjacent ends of said shoes, and spring means operatively connecting said adjacent ends to thereby retain said ends in said receiving means in adjustable relationship to said device, said spring means having abutments thereon to be engaged by portions of said device upon separation between said adjacent ends and said device of a predetermined amount whereby further separation is precluded.
Claim 3
Dependent Claim
99 words
In a brake having two brakeshoes and a brakeshoe adjusting device positioned between adjacent ends of said shoes for adjusting said shoes upon occurrence of a predetermined amount of wear, said device comprising two elements threaded together and provided with means for receiving the adjacent ends of the shoes, and a coil spring operatively connected between said adjacent shoe ends and having convolutions which circumscribe said device, said convolutions being engageable with portions of said device upon a predetermined amount of separation between said adjacent shoe ends and said device to thereby restrain said shoe ends from further separation.
Claim 4
Dependent Claim
99 words
In a brake having two brakeshoes and a brakeshoe adjusting device positioned between adjacent ends of said shoes for adjusting said shoes upon occurrence of a predetermined amount of wear, said device comprising two elements threaded together and provided with means for receiving the adjacent ends of the shoes, and a coil spring operatively connected between said adjacent shoe ends and having convolutions which circumscribe said device, said convolutions being engageable with portions of said device upon a predetermined amount of separation between said adjacent shoe ends and said device to thereby restrain said shoe ends from further separation.
Claim 5
Dependent Claim
37 words
The structure as recited in claim 2 wherein one of said convolutions is spaced axially a predetermined distance from one of said elements to be engaged thereby when separation of said adjacent shoe ends exceeds said distance.
Claim 6
Dependent Claim
90 words
The structure as recited in claim 2 wherein said coil spring is formed with one convolution which is spaced axially a predetermined distance from one of said elements to be engaged thereby and a second convolution which is spaced axially a predetermined distance from the other of said elements to be engaged thereby so that separation between adjacent shoe ends and said device is limited to the combined predetermined distances said first and second convolutions are spaced respectively from said one of said elements and said other of said elements.
Claim 7
Dependent Claim
106 words
In a brake having two brakeshoes and a brakeshoe adjusting device positioned between adjacent ends of said shoes for adjusting said shoes upon occurrence of a predetermined amount of wear, said device comprising two elements threadedly interconnecting one another and provided with means for receiving the adjacent ends of said shoes, and a coil spring operatively connected between said adjacent shoe ends and having convolutions through which said device projects, said device further having axially spaced abutments thereon for engagement with said convolutions wheN separation between said adjacent shoe ends and said device exceed a predetermined distance whereby said shoe ends are restrained from further separation.
Claim 8
Dependent Claim
106 words
In a brake having two brakeshoes and a brakeshoe adjusting device positioned between adjacent ends of said shoes for adjusting said shoes upon occurrence of a predetermined amount of wear, said device comprising two elements threadedly interconnecting one another and provided with means for receiving the adjacent ends of said shoes, and a coil spring operatively connected between said adjacent shoe ends and having convolutions through which said device projects, said device further having axially spaced abutments thereon for engagement with said convolutions wheN separation between said adjacent shoe ends and said device exceed a predetermined distance whereby said shoe ends are restrained from further separation.
References Cited (Backward Citations)
US3034603A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |