US4309791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Caster brake and swivel lock for stretcher or the like
Assignee: INTERNATIONAL INDUSTRIES Inc 5500 MUDDY CREEK RD CINCINNATI OH A IL CORP
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Filing: 1979-12-26
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Granted: 1982-01-12
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Expires: 1999-12-26
Abstract
Abstract An improved system for actuating wheel engaging ring brakes for a hospital stretcher, bed, or the like. The brake includes an elongated rotational member extending longitudinally along the stretcher to actuate pivot arms adjacent one front wheel and one rear wheel to prevent the wheels from rolling. A separate elongated rotational member extends the length of the stretcher and actuates a bullet pin latch to lock a nonbraked wheel against swivel action. Thus, a single nurse can easily push and manipulate the stretcher about a hospital even when loaded with a patient.
Inventors
- 👤 Clarence J. Aulik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:31
CPC Classifications
B; B62; B62B; B62B5/00; B62B5/04; A; A61; A61G; A61G1/00; A61G1/02; A61G1/0237; A61G1/0243; A61G1/04; A61G7/00; A61G7/05; A61G7/0528; B60; B60B; B60B33/00; B60B33/02; B60B33/021; B60B2200/00; B60B2200/20; B60B2200/24; B60B2200/242
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
104 words
A stretcher or the like having rotational casters having a swivel locking member for at least one caster, wherein the improvement comprises: a latch movably secured to the stretcher to engage the caster swivel locking member; a rotational member secured to the stretcher and having a longitudinal rotational axis extending in a direction parallel to the direction of movement of said stretcher; a connector member joining to the rotational member and extending transversely from the rotational member's longitudinal axis; said connector being joined to the latch, whereby rotation of the rotational member engages and disengages the latch with the lock structure on the caster.
Claim 2
Dependent Claim
104 words
A stretcher or the like having rotational casters having a swivel locking member for at least one caster, wherein the improvement comprises: a latch movably secured to the stretcher to engage the caster swivel locking member; a rotational member secured to the stretcher and having a longitudinal rotational axis extending in a direction parallel to the direction of movement of said stretcher; a connector member joining to the rotational member and extending transversely from the rotational member's longitudinal axis; said connector being joined to the latch, whereby rotation of the rotational member engages and disengages the latch with the lock structure on the caster.
Claim 3
Dependent Claim
30 words
A stretcher or the like as set forth in claim 1, wherein the connector is a spring bar for biasing the latch into engagement with the caster swivel lock structure.
Claim 4
Dependent Claim
28 words
A stretcher or the like as set forth in claim 1, wherein the caster swivel lock includes a plate with at least one opening to receive the latch.
Claim 5
Dependent Claim
20 words
A stretcher or the like as set forth in claim 1, wherein the latch is of the sliding bullet type.
Claim 6
Dependent Claim
25 words
A stretcher or the like as set forth in claim 1, wherein the rotational member extends between a head and foot section of the stretcher.
Claim 7
Dependent Claim
42 words
A stretcher or the like as set forth in claim 5, wherein the latch is at one end of the stretcher, and the rotational member has a transverse actuating bar at an opposite end of the stretcher for hand or foot engagement.
Claim 8
Dependent Claim
39 words
A stretcher or the like as set forth in claim 6, wherein the caster swivel lock is on one wheel at a foot of the stretcher, and the transverse actuating bar is at a head area of the stretcher.
Claim 9
Dependent Claim
29 words
A stretcher or the like as set forth in claim 1, wherein there is a resilient member with notches for holding the rotational member in locked or unlocked positions.
Claim 10
Dependent Claim
28 words
A stretcher or the like as set forth in claim 8, wherein there is a retention pin secured to the rotational member to engage the resilient member's notches.
Claim 11
Dependent Claim
151 words
A stretcher or the like with four swivel casters, wherein the improvement comprises: a caster brake system for two casters; said brake system includes a first rotational member that actuates brakes for a first and second caster of the four casters; a pair of pivot arms connected to the stretcher and joining the rotational member with braking collars that engage the first and second casters; a second rotational member having a longitudinal axis of rotation extending in a direction parallel to the direction of movement of said stretcher and joined to the stretcher; a connector joined to the second rotational member and extending laterally from its rotational axis; a latch joined to the connector; and a lock on the third caster that is engageable with such latch to lock the third caster from swivel action, whereby at least one caster can be locked against swivel action without being braked against rolling.
Claim 12
Dependent Claim
151 words
A stretcher or the like with four swivel casters, wherein the improvement comprises: a caster brake system for two casters; said brake system includes a first rotational member that actuates brakes for a first and second caster of the four casters; a pair of pivot arms connected to the stretcher and joining the rotational member with braking collars that engage the first and second casters; a second rotational member having a longitudinal axis of rotation extending in a direction parallel to the direction of movement of said stretcher and joined to the stretcher; a connector joined to the second rotational member and extending laterally from its rotational axis; a latch joined to the connector; and a lock on the third caster that is engageable with such latch to lock the third caster from swivel action, whereby at least one caster can be locked against swivel action without being braked against rolling.
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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) | 1985-01-11 | 1985-07-13 | 1986-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-11 | 1989-07-13 | 1990-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-11 | 1993-07-13 | 1994-01-12 | $7700.00 | Window Closed / Lapsed |