US4122758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Service support
Assignee: Caterpillar Inc
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Filing: 1977-06-09
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Granted: 1978-10-31
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Expires: 1997-06-09
Abstract
Abstract In a lift arm structure for a bucket, for instance on a loader-type vehicle, a service support is provided to block the lift arm in the extended position during servicing and repairing either of the lift arm structure or of parts in close proximity to the lift arm structure. The service support is U-shaped in configuration so as to straddle the rod of the lift cylinder when said lift cylinder is substantially completely extended. Pads are provided on the end of the service support to contact the mounting bracket for better distribution of the loads on the service support. Attachment members are mounted on the service support and engage a plate assembly bridging the open space between the sides of the service support so that with the service support in position on an extended cylinder rod, the attachment members and plate assembly lock the service support on the cylinder rod. The service support has a storage position on the vehicle such that said attachment members and plate assembly serve to lock the service support in said storage position.
Inventors
- 👤 Harold F. Bieringer
- 👤 Derrell G. Jones
- 👤 Gary S. Schwartzkopf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:16
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/20; F15B15/26; F15B15/261
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
117 words
A service support in combination with a cylinder rod of a cylinder, said service support comprising an elongate U-shaped body portion having legs with bottom edges adapted to be placed over said cylinder rod, a pair of lugs carried by an intermediate portion of said body portion and extending outwardly an opposite sides thereof along axes extending perpendicular to a plane containing the bottom edges of said legs, a plate bridging the space between the legs of said U-shaped body portion and having threaded apertures aligned with said lugs, and a pair of threaded members passing through said lugs and being threaded into said apertures in said plate to secure said body portion to said cylinder rod.
Claim 2
Dependent Claim
117 words
A service support in combination with a cylinder rod of a cylinder, said service support comprising an elongate U-shaped body portion having legs with bottom edges adapted to be placed over said cylinder rod, a pair of lugs carried by an intermediate portion of said body portion and extending outwardly an opposite sides thereof along axes extending perpendicular to a plane containing the bottom edges of said legs, a plate bridging the space between the legs of said U-shaped body portion and having threaded apertures aligned with said lugs, and a pair of threaded members passing through said lugs and being threaded into said apertures in said plate to secure said body portion to said cylinder rod.
Claim 3
Dependent Claim
36 words
In a service support as claimed in claim 1 wherein end caps are provided on the ends of said body portion, said end caps having U-shaped openings for receiving said cylinder rod of the cylinder therein.
Claim 4
Dependent Claim
34 words
In a service support as claimed in claim 2 wherein axially extending pads are mounted on one of said end caps, said pads are spaced apart and extend axially outward from said end cap.
Claim 5
Dependent Claim
55 words
In a service support as claimed in claim 1 wherein one of said threaded members has stop means for preventing said threaded member from separating from said plate and the other of said threaded members has limit means for preventing said other threaded member from separating from one of said lugs on said body portion.
Claim 6
Dependent Claim
28 words
In a service support as claimed in claim 1 wherein said plate has a supporting block means projecting into the space between said legs of the body portion.
Claim 7
Dependent Claim
51 words
In a service support as claimed in claim 1 wherein said body portion has abutment means on the inner surface thereof projecting toward the open space between said legs of the body portion and being adapted to contact said cylinder rod when said body portion is placed over said cylinder rod.
Claim 8
Dependent Claim
22 words
In a service support as claimed in claim 1 wherein said threaded members include headed nuts to facilitate turning said threaded members.
Claim 9
Dependent Claim
141 words
A service support in combination with a cylinder rod of a cylinder, said service support comprising an elongate U-shaped body portion having legs, a pair of end caps mounted on the ends of said body portion, a pair of pads mounted on one of said end caps and projecting axially thereof, said pads being adapted to contact a mounting bracket supporting one end of the cylinder rod when said body portion encircles said cylinder rod, a pair of lugs mounted on said body portion and extending outwardly on opposite sides thereof, a plate bridging the space between the legs of said U-shaped body portion and having threaded apertures aligned with said lugs, and a pair of threaded members passing through said lugs and being threaded into said apertures in said plate to hold said body portion assembled with said cylinder rod.
Claim 10
Dependent Claim
141 words
A service support in combination with a cylinder rod of a cylinder, said service support comprising an elongate U-shaped body portion having legs, a pair of end caps mounted on the ends of said body portion, a pair of pads mounted on one of said end caps and projecting axially thereof, said pads being adapted to contact a mounting bracket supporting one end of the cylinder rod when said body portion encircles said cylinder rod, a pair of lugs mounted on said body portion and extending outwardly on opposite sides thereof, a plate bridging the space between the legs of said U-shaped body portion and having threaded apertures aligned with said lugs, and a pair of threaded members passing through said lugs and being threaded into said apertures in said plate to hold said body portion assembled with said cylinder rod.
Claim 11
Dependent Claim
35 words
In a service support as claimed in claim 8 wherein said end caps extend radially inwardly from the inner surface of said body portion to provide contact edges for said support on said cylinder rod.
Claim 12
Dependent Claim
35 words
In a service support as claimed in claim 8 wherein a supporting block is mounted on said plate and projects into the space in said body portion and being adapted to contact said cylinder rod.
Claim 13
Dependent Claim
40 words
In a service support as claimed in claim 8 wherein means are provided on said threaded members for trapping said plate to one of said threaded members and for trapping the other of said threaded members to said body portion.
Claim 14
Dependent Claim
149 words
A service support in combination with a cylinder rod of a cylinder, said service support comprising an elongate U-shaped body portion having legs adapted to be draped over said cylinder rod, a pair of pads on a forward end of said body portion and projecting axially thereof, said pads being adapted to contact a mounting bracket supporting one end of said cylinder rod, a pair of lugs carried by the opposite sides of said body portion and extending outwardly on opposite sides thereof, a plate bridging the space between the legs of said U-shaped body portion and having threaded apertures aligned with said lugs, a pair of bolts passing through said lugs and being threaded into said apertures in said plate with said plate positioned below said cylinder rod of the cylinder, and a block mounted on said plate and adapted to contact said cylinder rod of said cylinder.
Claim 15
Dependent Claim
149 words
A service support in combination with a cylinder rod of a cylinder, said service support comprising an elongate U-shaped body portion having legs adapted to be draped over said cylinder rod, a pair of pads on a forward end of said body portion and projecting axially thereof, said pads being adapted to contact a mounting bracket supporting one end of said cylinder rod, a pair of lugs carried by the opposite sides of said body portion and extending outwardly on opposite sides thereof, a plate bridging the space between the legs of said U-shaped body portion and having threaded apertures aligned with said lugs, a pair of bolts passing through said lugs and being threaded into said apertures in said plate with said plate positioned below said cylinder rod of the cylinder, and a block mounted on said plate and adapted to contact said cylinder rod of said cylinder.
Claim 16
Dependent Claim
26 words
In a service support as claimed in claim 12 wherein said pads are mounted on an end cap secured to one end of said body portion.
Claim 17
Dependent Claim
34 words
In a service support as claimed in claim 13 wherein a plurality of abutment members are mounted in said body portion with the abutment members having abutment surfaces in contact with said cylinder rod.
Claim 18
Dependent Claim
44 words
In a service support as claimed in claim 14 wherein means are provided for trapping said plate to one of said threaded members and means are provided for trapping the other of said threaded members to one of said lugs on said body portion.
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) | 1981-10-30 | 1982-05-01 | 1982-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-30 | 1986-05-01 | 1986-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-30 | 1990-05-01 | 1990-10-31 | $7700.00 | Window Closed / Lapsed |