Patent US4954032A successfully refreshed from Google Patents.
US4954032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-backlash nut
Assignee: WM Berg Inc
•
Filing: 1989-11-13
•
Granted: 1990-09-04
•
Expires: 2009-11-13
Abstract
Abstract An anti-backlash nut having a pair of nut segments, each with an internal threaded bore adapted to receive a threaded bolt. One nut segment has a portion insertable within the other nut segment and interlocking means are provided to lock the two nut segments together. A spiral spring acts on both nut segments to bias them away from each other. The interlocking means permits movement of the two nut segments away from each other to keep the threads of the bores of the two in contact with the threads of the bolt.
Inventors
- 👤 Victor H. Morales
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:49
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H25/2003; F16H25/2006; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18728
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
96 words
An anti-backlash nut comprising at least two nut segments, each nut segment having an internal threaded bore adapted to receive a threaded member therein, one nut segment having at least a portion thereof insertable within the other nut segment, means for interlocking the nut segments together, said interlocking means comprising resilient lock means on one nut segment and means on the other nut segment for removably receiving the resilient lock means and resilient means acting on said nut segments to exert pressure on the nut segments to permit them to move linearly relative to each other.
Claim 2
Dependent Claim
96 words
An anti-backlash nut comprising at least two nut segments, each nut segment having an internal threaded bore adapted to receive a threaded member therein, one nut segment having at least a portion thereof insertable within the other nut segment, means for interlocking the nut segments together, said interlocking means comprising resilient lock means on one nut segment and means on the other nut segment for removably receiving the resilient lock means and resilient means acting on said nut segments to exert pressure on the nut segments to permit them to move linearly relative to each other.
Claim 3
Dependent Claim
22 words
An anti-backlash nut as set forth in claim 1 wherein said resilient means exerts pressure to move the two nut segments apart.
Claim 4
Dependent Claim
34 words
An anti-backlash nut as set forth in claim 2 wherein one of said nut segments is a female nut segment and the other of said nut segments is a male nut segment insertable therewithin.
Claim 5
Dependent Claim
31 words
An anti-backlash nut as set forth in claim 3 wherein said receiving means comprises at least one slot and resilient locking means interrengaging with said slot to hold the segments together.
Claim 6
Dependent Claim
16 words
An anti-backlash nut as set forth in claim 4 wherein said slot is an adjustment slot.
Claim 7
Dependent Claim
27 words
An anti-backlash nut as set forth in claim 5 wherein said adjustment slot is in the female portion and said locking means are in the male portion.
Claim 8
Dependent Claim
23 words
An anti-backlash nut as set forth in claim 6 wherein said locking means comprise a guide finger mounted on said male nut segment.
Claim 9
Dependent Claim
26 words
An anti-backlash nut as set forth in claim 7 wherein said adjustment slot is in the female nut segment and adapted to receive the guide finger.
Claim 10
Dependent Claim
21 words
An anti-backlash nut as set forth in claim 8 wherein said finger has a lock stop insertable in said adjustment slot.
Claim 11
Dependent Claim
32 words
An anti-backlash nut as set forth in claim 9 wherein the lock stop is linearly shorter than the adjustment slot to permit linear movement of the lock stop within the adjustment slot.
Claim 12
Dependent Claim
52 words
An anti-backlash nut as set forth in claim 10 wherein a plurality of guide fingers are provided on the female nut segment and a plurality of adjustment slots are provided on the male nut segment, at least some of which are adapted to cooperate with at least one of the guide fingers.
Claim 13
Dependent Claim
40 words
An anti-backlash nut as set forth in claim 11 wherein a plurality of linearly oriented adjustment slots are provided in the female nut segment co-extensive with each other, each of the adjustment slots being capable of receiving a lock finger.
Claim 14
Dependent Claim
28 words
An anti-backlash nut as set forth in claim 12 wherein at least one of the linearly oriented adjustment slots is longer than the other linearly oriented adjustment slots.
Claim 15
Dependent Claim
24 words
An anti-backlash nut as set forth in claim 13 wherein said plurality of guide fingers and adjustment slots are diametrically opposed to each other.
Claim 16
Dependent Claim
27 words
An anti-backlash nut as set forth in claim 14 wherein a pair of linearly oriented adjustment slots is provided, one of which is longer than the other.
Claim 17
Dependent Claim
28 words
An anti-backlash nut as set forth in claim 15 wherein guideways are provided in the female nut segment to direct the guide fingers into the said adjustment slots.
Claim 18
Dependent Claim
15 words
An anti-backlash nut as set forth in claim 16 wherein the guide fingers are resilient.
Claim 19
Dependent Claim
23 words
An anti-backlash nut as set forth in claim 17 wherein said guide fingers are mounted in retaining grooves in the male nut segment.
Claim 20
Dependent Claim
19 words
An anti-backlash nut as set forth in claim 18 wherein said lock stops comprise inclined faces and lock surfaces.
Claim 21
Dependent Claim
27 words
An anti-backlash nut as set forth in claim 19 wherein each nut segment has an upstanding flange and wherein the resilient means are interposed between said flanges.
Claim 22
Dependent Claim
22 words
An anti-backlash nut as set forth in claim 20 wherein said resilient means is a special spring surrounding the two nut segments.
Claim 23
Dependent Claim
32 words
A nut segment for an anti-backlash nut, said nut segment having an internal threaded bore adapted to receive a threaded member therein, said nut segment having at least one adjustment slot therein.
Claim 24
Dependent Claim
32 words
A nut segment for an anti-backlash nut, said nut segment having an internal threaded bore adapted to receive a threaded member therein, said nut segment having at least one adjustment slot therein.
Claim 25
Dependent Claim
21 words
A nut segment as set forth in claim 22 wherein a plurality of adjustment slots are provided on the nut segment.
Claim 26
Dependent Claim
27 words
A nut segment as set forth in claim 23 wherein a plurality of linearly oriented adjustment slots are provided in the nut segment co-extensive with each other.
Claim 27
Dependent Claim
26 words
A nut segment as set forth in claim 24 wherein one of the linearly oriented adjustment slots is longer than the other linearly oriented adjustment slots.
Claim 28
Dependent Claim
21 words
A nut segment as set forth in claim 25 wherein said plurality of adjustment slots are diametrically opposed to each other.
Claim 29
Dependent Claim
27 words
A nut segment as set forth in claim 26 wherein a pair of linearly oriented adjustment slots is provided, one of which is longer than the other.
Claim 30
Dependent Claim
24 words
A nut segment as set forth in claim 27 wherein guideways are provided in the nut segment which lead to the said adjustment slots.
Claim 31
Dependent Claim
31 words
A nut segment for a anti-backlash nut, said nut segment having an internal threaded bore adapted to receive a threaded member therein, said nut segment having a locking guide finger thereon.
Claim 32
Dependent Claim
31 words
A nut segment for a anti-backlash nut, said nut segment having an internal threaded bore adapted to receive a threaded member therein, said nut segment having a locking guide finger thereon.
Claim 33
Dependent Claim
18 words
A nut segment as set forth in claim 29 wherein said guide finger has a lock stop thereon.
Claim 34
Dependent Claim
18 words
A nut segment as set forth in claim 30 wherein a plurality of guide fingers are provided thereon.
Claim 35
Dependent Claim
21 words
A nut segment as set forth in claim 31 wherein said plurality of guide fingers are diametrically opposed to each other.
Claim 36
Dependent Claim
15 words
A nut segment as set forth in claim 32 wherein the guide fingers are resilient.
Claim 37
Dependent Claim
18 words
A nut segment as set forth in claim 33 wherein said guide fingers are mounted in retaining grooves.
Claim 38
Dependent Claim
19 words
A nut segment as set forth in claim 34 wherein said lock stops comprise inclined faces and lock surfaces.
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) | 1993-09-03 | 1994-03-05 | 1994-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-03 | 1998-03-05 | 1998-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-03 | 2002-03-05 | 2002-09-04 | $7700.00 | Window Closed / Lapsed |