US3782845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compactor
Assignee: ARROW MASTER INCORPORATED A CORP OF ILLINOIS
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Filing: 1971-08-27
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Granted: 1974-01-01
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Expires: 1991-08-27
Abstract
Abstract An engine driven vibratory plate compactor fully self-contained and easily maneuverable by the operator. A vibratory plate assembly and an engine assembly are separable units interconnected by shock absorbing means isolating the superstructure of the compactor from vibration effects at the plate, with the maneuvering handle being doubly isolated substantially to reduce operator fatigue. An exciter compartment on the vibratory plate is sealed to exclude dirt and the plate on its upper surface is inherently self-cleaning. Engine components overlie the vibratory plate in a close coupled compact arrangement and include a multi-functional roll-bar type frame. An adjustable throttle control enables variable compaction rates to suit varying work requirements.
Inventors
- 👤 E Briggs
- 👤 L Reichel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:36
CPC Classifications
E; E02; E02D; E02D3/00; E02D3/02; E02D3/046
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
131 words
An engine driven vibratory plate compactor, including a work engaging vibratory base plate turned up at leading and trailing ends and substantially open at its sides, a vibrator housing mounted on the upwardly facing floor surface of said plate, an engine assembly in a superposing supported relation to said vibratory base plate including an engine base plate overlying said housing and having wing-like side marginal portions bent downward to overlap sides of said housing, said marginal portions being in a spaced relation to said housing and in a spaced relation to the floor surface of said vibratory base plate to be protective of said housing and to avoid entrapment of dirt materials on and about said housing, the floor surface of said vibratory base plate and communicating areas being inherently self-cleaning.
Claim 2
Dependent Claim
131 words
An engine driven vibratory plate compactor, including a work engaging vibratory base plate turned up at leading and trailing ends and substantially open at its sides, a vibrator housing mounted on the upwardly facing floor surface of said plate, an engine assembly in a superposing supported relation to said vibratory base plate including an engine base plate overlying said housing and having wing-like side marginal portions bent downward to overlap sides of said housing, said marginal portions being in a spaced relation to said housing and in a spaced relation to the floor surface of said vibratory base plate to be protective of said housing and to avoid entrapment of dirt materials on and about said housing, the floor surface of said vibratory base plate and communicating areas being inherently self-cleaning.
Claim 3
Dependent Claim
36 words
An engine driven vibratory plate compactor according to claim 1, characterized by means for mounting said engine base plate in a spaced attached relation to said housing, said mounting means including shock damping resilient spacer devices.
Claim 4
Dependent Claim
75 words
An engine driven vibratory plate compactor according to claim 2, wherein the side marginal portions of said engine base plate dispose at an inclining angle to the floor surface of said vibratory base plate, characterized by projecting anchor means on said housing disposing in a substantially parallel spaced relation to said side marginal portions of said engine base plate, said resilient spacer devices interposing between and interconnecting said side marginal portions and said anchor means.
Claim 5
Dependent Claim
113 words
An engine driven vibratory plate compactor according to claim 1, wherein said housing is secured to the floor surface of said vibratory base plate to define a closed compartment thereon, said housing providing spaced side walls, a shaft having a rotary mounting in said side walls and disposing an eccentrically weighted portion within said compartment, an end of said shaft projecting from said housing, and a drive connection extending from said engine assembly downward through said engine base plate to said projecting end of said shaft, the side margins of said engine base plate extending in an overlapping protective relation to said projecting end of said shaft and to the drive connection thereto.
Claim 6
Dependent Claim
59 words
An engine driven vibratory compactor according to claim 4, characterized by sealing means preventing the access of dirt materials to said compartment around said shaft and retaining lubricant fluids within the compartment, the compartment containing a bath of liquid lubricant which in response to rotation of the shaft the eccentrically weighted portion therein creates a mist for lubrication purposes.
Claim 7
Dependent Claim
61 words
An engine driven vibratory plate compactor according to claim 1, wherein said engine assembly includes an engine mounted on and upstanding from said engine base plate and a frame also rising from said engine base plate in a substantially surrounding protective relation to said engine, said frame being of a tubular roll-bar construction providing relatively free access to engine assembly components.
Claim 8
Dependent Claim
60 words
An engine driven vibratory plate compactor according to claim 6, characterized by a mounting plate secured to said frame in transverse overlying relation to said engine, and a fuel tank carried by said mounting plate to dispose within the confines of said frame in a substantially suspended relation to said plate and in a substantially overhead relation to said engine.
Claim 9
Dependent Claim
54 words
An engine driven vibratory plate compactor according to claim 7, wherein said engine utilIzes air in the burning of fuel drawn from said fuel tank, characterized by an air cleaner mounted on said mounting plate in a relatively upwardly projecting relation achieving maximum removal of the air cleaner from areas of high dust concentration.
Claim 10
Dependent Claim
118 words
An engine driven vibratory plate compactor, including a vibratory base plate, an engine assembly supported by and in a superposed relation to said vibratory base plate, said engine assembly including an engine base plate and an engine thereon, means defining a sealed exciter compartment on said vibratory base plate beneath said engine base plate, eccentric exciter means in said compartment, and a driving connection from said engine to said exciter means, said engine base plate having wing-like portions overhanging relatively to said compartment to assume a protective relation to said driving connection and to said compartment while defining an escape route for dirt materials tending to become trapped between said vibratory base plate and said engine base plate.
Claim 11
Dependent Claim
118 words
An engine driven vibratory plate compactor, including a vibratory base plate, an engine assembly supported by and in a superposed relation to said vibratory base plate, said engine assembly including an engine base plate and an engine thereon, means defining a sealed exciter compartment on said vibratory base plate beneath said engine base plate, eccentric exciter means in said compartment, and a driving connection from said engine to said exciter means, said engine base plate having wing-like portions overhanging relatively to said compartment to assume a protective relation to said driving connection and to said compartment while defining an escape route for dirt materials tending to become trapped between said vibratory base plate and said engine base plate.
Claim 12
Dependent Claim
149 words
A vibratory plate compactor, including a work engaging vibratory base plate which intermediate its ends is constructed as a substantially flat planar portion supporting the compactor upon a work surface, opposite ends of said base plate being bent upward in substantially similar manner so that either end may act as the leading end having regard to the direction of motion of the compactor as it travels over the work surface, said ends having inclinations facilitating maneuvering and providing improved climbing surfaces, means forming a substantially sealed vibrator housing on the uppermost surface of said flat planar portion of said base plate extending fore and aft thereof, said sealed housing having a tube-like form with its ends closed by the upwardly bent opposite ends of said vibratory base plate, said housing incorporating vibrating exciting means and having mounting means for supporting an engine base plate in a spaced relation thereto.
Claim 13
Dependent Claim
149 words
A vibratory plate compactor, including a work engaging vibratory base plate which intermediate its ends is constructed as a substantially flat planar portion supporting the compactor upon a work surface, opposite ends of said base plate being bent upward in substantially similar manner so that either end may act as the leading end having regard to the direction of motion of the compactor as it travels over the work surface, said ends having inclinations facilitating maneuvering and providing improved climbing surfaces, means forming a substantially sealed vibrator housing on the uppermost surface of said flat planar portion of said base plate extending fore and aft thereof, said sealed housing having a tube-like form with its ends closed by the upwardly bent opposite ends of said vibratory base plate, said housing incorporating vibrating exciting means and having mounting means for supporting an engine base plate in a spaced relation thereto.
Claim 14
Dependent Claim
35 words
A compactor as in claim 10, wherein the respective ends of said base plate are formed with outer surfaces which are respectively and similarly inclined at successively greater angles to the substantially flat planar portion.
Claim 15
Dependent Claim
35 words
A compactor as in claim 11, wherein said vibrator housing bridges said opposite ends of said base plate and the respective sides thereof mount adapters for supporting said engine base plate in spaced relation thereto.
Claim 16
Dependent Claim
34 words
A compactor as in claim 12, wherein said adapters include resilient elements angularly related to accommodate shear and compression forces transmitted therethrough by a supported engine base plate and the structure which mounts thereon.
Claim 17
Dependent Claim
117 words
A vibratory plate compactor, including a work engaging vibratory base plate and in overlying spaced relation thereto an engine assembly including an engine base plate, an upwardly facing surface of said vibratory base plate providing a vibratory base plate floor, a housing mounted on said vibratory base plate floor and forming interiorly thereof a substantially sealed exciter compartment, means on said housing supporting said engine base plate in substantially shock isolated relation, exciter means in said compartment and a drive connection therefor external to said housing, and wing-like portions on said engine base plate extending toward the floor of said vibratory base plate in overlapping protective relation to portions of said housing and to said drive connection.
Claim 18
Dependent Claim
117 words
A vibratory plate compactor, including a work engaging vibratory base plate and in overlying spaced relation thereto an engine assembly including an engine base plate, an upwardly facing surface of said vibratory base plate providing a vibratory base plate floor, a housing mounted on said vibratory base plate floor and forming interiorly thereof a substantially sealed exciter compartment, means on said housing supporting said engine base plate in substantially shock isolated relation, exciter means in said compartment and a drive connection therefor external to said housing, and wing-like portions on said engine base plate extending toward the floor of said vibratory base plate in overlapping protective relation to portions of said housing and to said drive connection.
Claim 19
Dependent Claim
40 words
A vibratory plate compactor according to claim 14, wherein marginal edges of said vibratory base plate and of said engine base plate cooperate in defining an open passage therebetween for self-cleaning of said vibratory base plate floor around said housing.
Claim 20
Dependent Claim
59 words
A vibratory plate compactor according to claim 15, wherein the means on said housing supporting said engine base plate in substantially shock isolated relation is based on said housing above said vibratory base plate floor in a manner to obviate interruptions in the defined open passage between Marginal edges of said vibratory base plate and said engine base plate.
Claim 21
Dependent Claim
111 words
A vibratory plate compactor according to claim 14, wherein said vibratory base plate is generally rectangular in configuration, opposite ends being bent upward in substantially similar manner so that either end may act as the leading end having regard to the direction of motion of the compactor over a work surface, said housing being in substantially bridging relation to said opposite ends and having elongate sides substantially parallel to the sides of the vibratory base plate, the wing-like portions of said engine base plate flaring outwardly and downwardly to terminate upwardly of said vibratory base plate floor intermediate the sides of said vibratory base plate and the sides of said housing.
Claim 22
Dependent Claim
99 words
An engine driven vibratory plate compactor, including a work engaging vibratory base plate, engine driven exciter means thereon, an engine base plate in a superposing relation to said vibratory base plate, means disposing between said base plates supporting said engine base plate in a shock isolated relation to said vibratory base plate, engine components mounted on and upstanding from said engine base plate, and a roll-bar type frame having portions mounted on opposite sides of said engine base plate and joining in an overhead relation thereto to assume a protective relation to engine components while providing free access thereto.
Claim 23
Dependent Claim
99 words
An engine driven vibratory plate compactor, including a work engaging vibratory base plate, engine driven exciter means thereon, an engine base plate in a superposing relation to said vibratory base plate, means disposing between said base plates supporting said engine base plate in a shock isolated relation to said vibratory base plate, engine components mounted on and upstanding from said engine base plate, and a roll-bar type frame having portions mounted on opposite sides of said engine base plate and joining in an overhead relation thereto to assume a protective relation to engine components while providing free access thereto.
Claim 24
Dependent Claim
53 words
An engine driven vibratory plate compactor according to claim 18, wherein said means supporting said engine base plate includes resilient elements angularly related to and connected between and perpendicular to portions of said engine base plate and means in connection with said vibratory base plate, arranged to accommodate applied shear and compression forces.
Claim 25
Dependent Claim
36 words
An engine driven vibratory plate compactor according to claim 18, characterized by means carried by the said overhead portion of said roll-bar frame providing a mounting for auxiliary engine components within the outlines of said frame.
Claim 26
Dependent Claim
43 words
An engine driven vibratory plate compactor according to claim 18 in which joining overhead portions of said roll-bar frame include a section intersecting the center of gravity of the compactor and providing a point of attachment for a powered lifting of the compactor.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |